Table Of ContentZOOSYSTEMATICA ROSSICA, 24(2): 266–278 25 DECEMBER 2015
New and little known species of the genus Spilomicrus
(Hymenoptera: Diapriidae) from the Eastern Palaearctic
Новые и малоизвестные виды рода Spilomicrus
(Hymenoptera: Diapriidae) из Восточной Палеарктики
V.G. CHEMYREVA
В.Г. ЧЕМЫРЕВА
Zoological Institute Russian Academy of Sciences, 1 Universitetskaya Emb., St Petersburg 199034, Russia.
E-mail: [email protected]
Three new species, Spilomicrus pilosiventris sp. nov. from the Far East of Russia, Japan, China,
Taiwan and Nepal, S. comatus sp. nov. from Japan and the Far East of Russia and S. sergeyi
sp. nov. from the Primorskiy Territory of Russia, are described and illustrated. Spilomicrus
kumaonensis Sharma, 1980 is recorded for the first time for the fauna of the Far East of Russia,
Japan, South Korea, Taiwan and Nepal.
Описаны и иллюстрированы три новых вида рода Spilomicrus Westwood, 1832: S. pilosi-
ventris sp. nov. с Дальнего Востока России, Японии, Китая, Тайваня и Непала, S. coma-
tus sp. nov. с Дальнего Востока России и Японии и S. sergeyi sp. nov. из Приморского
Края России. Spilomicrus kumaonensis Sharma, 1980 впервые указан для фауны Дальнего
Востока России, Японии, Южной Кореи, Тайваня и Непала.
Key words: Eastern Palaearctic, Oriental Region, taxonomy, key, Hymenoptera, Diapriidae,
Spilomicrus, new species, new records
Ключевые слова: Восточная Палеарктика, Ориентальная область, таксономия, ключ,
Hymenoptera, Diapriidae, Spilomicrus, новые виды, новые находки
INTRODUCTION of the Palaearctic Region (Tomsik, 1947).
This study of the Eastern Palaearctic fauna
Spilomicrus Westwood, 1832 is the nom-
allows discovering the significant species
inal genus of the tribe Spilomicrini (Di-
diversity and morphological variety in this
apriidae). This genus comprises more than
genus. Three peculiar new species from the
170 valid species in the world fauna, 43 of
Russian Far East, Japan, Taiwan and Nepal
which are recorded in the Palaearctic Re-
are described in this paper and an extensive
gion (Johnson, 1992; Hymenoptera Online,
region for two related species, Spilomicrus
2015). Spilomicrus species are usually small
pilosiventris sp. nov. and S. kumaonensis
size parasitoids (1.0–4.5 mm) with mainly
Sharma, 1980, are shown.
dark, smooth and shining body. The known
hosts of this group are in different fami-
MATERIALS AND METODS
lies of Diptera (Honda, 1969; Hoffmeister,
1989; Masner, 1991; Notton, 1999; Masner Material of this species (221 specimens)
& García, 2002). from the Zoological Institute of the Russian
The genus Spilomicrus is a poorly known Academy of Sciences (St Petersburg, Rus-
group of parasitic wasps with numerous un- sia; ZISP) and the Canadian National Col-
described species. Its European fauna was lection of Insects (Ottawa, Canada; CNCI)
studied better than the fauna of other parts was studied. The type specimens of Spilo-
© 2015 Zoological Institute, Russian Academy of Scienсes
V. CHEMYREVA. NEW AND LITTLE KNOWN SPECIES OF SPILOMICRUS 267
micrus kuamoennsis were investigated from 2. Side of pronotum with row of foveae along
the National Museum of Natural History posterior margin; epomia absent; mesopleu-
(Washington, USA; USNM). Type mate- ron pubescent, sculptured in distal part (Fig.
23); entire head densely pubescent (Figs
rial of the new species is mainly deposited
17–19, 21), tentorial pits very large; malar
at the collection of ZISP, part of paratypes
sulcus shallow (Fig. 17); anterior margin of
are kept in CNCI and the Natural History
T2 straight; in lateral view mesoscutum con-
Museum (London, UK; BMNH). The mor-
vex; female antenna slender (Figs 19, 22) . . . .
phological terminology and abbreviations . . . . . . . . . . . . . . . . . . . . . . . S. comatus sp. nov.
used following Masner and García (2002), – Side of pronotum without row of foveae
Yoder (2004), and the Hymenoptera Anato- along posterior margin; epomia sharp and
my Ontology (Yoder et al., 2010); measure- strongly projecting (Fig. 28); mesopleuron
ments follow to Yoder (2004). Additional bare and smooth (Fig. 26); head not densely
morphological terms are used: anterior in- pubescent (Fig. 28); tentorial pits absent;
malar sulcus deep (Fig. 25); anterior margin
cision of mesopleuron – the notch is situ-
of T2 arcuate (Fig. 29); mesoscutum in lat-
ated at the border between the pronotum
eral view flattened; female antenna robust
and mesopleuron significantly higher than
(Figs 26, 28) . . . . . . . . . . . . . S. sergeyi sp. nov.
ventral margin of pronotum (Fig. 23), and
3. Base of T2 with deep lateral groove and
the pleurostomal distance – the longest dense pubescence (Fig. 16); basal and lateral
t ransverse line between pleurostomal cari- S2 grooves distinct . . . . . . . . . . . . . . . . . . . . . . 4
nas (Fig. 8). – Base of T2 smooth and bare; base of S2
Spilomicrus can be recognized in the smooth . . . . . . . . . . . . other Palaearctic species
East Palaearctic fauna using the generic 4. Female antenna slender (Figs 2, 4), A7–A13
key by Kozlov (1995) and in the Oriental in dorsal view quadrate or elongate; ante-
rior margin of anterior scutellar pits open,
fauna using the generic key by Rajmohana
not surrounded anteriorly by edge (Fig. 6);
(2006); for generic synonymy see Johnson
posterior part of female S2 with small area of
(1992) and Notton (2014). All photographs
transverse sculpture (Fig. 3) . . . . . . . . . . . . . . . .
were obtained using a Leica M165 stereo-
. . . . . . . . . . . . . . . . . . . . S. pilosiventris sp. nov.
microscope equipped with a Leica DFC450 – Female antenna robust (Fig. 14), A7–A13
camera. Image stacking was performed with in dorsal view transverse; anterior margin of
Helicon Focus 5.0. anterior scutellar pits close, surrounded an-
teriorly by edge (Fig. 15); posterior part of
TAXONOMIC PART female S2 smooth. . . . . . . . . . . S. kumaonensis
Order HYMENOPTERA
Spilomicrus pilosiventris sp. nov.
Family DIAPRIIDAE (Figs 1–7)
Subfamily DIAPRIINAE
Holotype. Female. Russia, Primorskiy Terr.,
Tribe SPILOMICRINI vicinity of Spassk-Dal’niy, 19–23 Aug. 1987
Genus Spilomicrus Westwood, 1832 (S. Belokobylskij) (ZISP).
Paratypes. Russia: Primorskiy Terr., vicinity
Spilomicrus Westwood, 1832: 129. of Spassk-Dal’niy, 12–27 July 1991, 5–7 Aug.
Type species: Spilomicrus stigmaticalis West- 1993, 13 July 1999 and 14–19 Aug. 2001 (S. Be-
wood, 1832. lokobylskij), 4 females, 2 males (ZISP, BMNH);
Ussuriysk Distr., 20 km SW from Krounovka,
Reduced key to Spilomicrus species of the 4–5 Au g. 1993 (S. Belokobylskij), 1 female
Eastern Palaearctic fauna (ZISP); 30 km SE from Ussuriysk, 17–19 July
2001 (S. Belokobylskij), 1 female (ZISP); vicin-
1. Occipital flange crenulate (Figs 19, 21, 28, ity of Vladivostok, 27 July 1981 (V. Trjapitzin),
29); all legs without trochantelli . . . . . . . . . . . 2 1 female (ZISP); Gornotaezhnoe, 43°66´N,
– Occipital flange smooth (Fig. 9); at least 132°25´E, 4–18 Aug. and 5–7 Sept. 1999 (M.
fore- and mid-femora with trochantelli. . . . . 3 Michailovskaya), 7 females, 1 male (CNCI). Ja-
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268 V. CHEMYREVA. NEW AND LITTLE KNOWN SPECIES OF SPILOMICRUS
Figs 1–7. Spilomicrus pilosiventris sp. nov. 1, face; 2, whole body; 3, metasoma, ventral view; 4, an-
tenna of female, lateral view; 5, antenna of male: a, A1–A6 in dorsal view, b, whole antenna, lateral
view; 6, 7, mesosoma in dorsal (6) and ventral view (7).
pan: Hokkaido, Sapporo, Hitsujigaoka, 21–27 tung Hsien, Peitawushan, 1500 m, 1 May 1992
July 1989 (M. Sharkey & K. Maeto), 1 male (A. Smetana), 1 female (CNCI). Nepal, Kath-
(CNCI); Honshu, Iwate Pref., Mt. Hayachine, mandu, Godavari, 6000 ft (=1830 m), 4–20 Aug.
400 m, 20–27 June and 11–19 July 1989, June– 1967, 13–17 Aug. 1976 (Canadian Expedition),
July 1989 and 20 Aug. – 3 Sept. 1989 (H. Maki- 1 female, 3 males (CNCI).
Comparative diagnosis. Spilomicrus pilo-
hara & M. Sharkey), 1 female, 4 males (CNCI).
China: N-Yunnan, Dali Bai Autonomous Pref., siventris sp. nov. is very closely related to
1 km W from Dali, 25°41´N, 100°08´E, 2170 m, S. kumaonensis Sharma, 1980 from which
1–3 Sept. 2003 (A. Smetana), 3 males (CNCI). differs by characters listed in the key (see
Taiwan: Taiching Hsien, Suchilanchi, 1600 m, 24 couplet 4). The new species easy differs
Sept. 1997 (B. Sinclair), 2 males (CNCI); Ping- from all others Palaearctic species by us-
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V. CHEMYREVA. NEW AND LITTLE KNOWN SPECIES OF SPILOMICRUS 269
ing the key above. Spilomicrus pilosiven- base. Connection between clavomeres in
tris differs from similar Nearctic S. masneri lateral view situated dorsally (Fig. 4). A13
Özdikmen, 2010 (Masner, 1991) by fol- without ventral pit, equal to A12. Ratios
lowing characters: occipital flange without of length to width of antennal segments in
sculpture (sculptured in S. masneri); head dorsal view: 24 : 6; 7 : 5; 12 : 5; 11 : 5; 10.5 : 5;
in dorsal view strongly transverse (50 : 28) 9 : 5; 8 : 5.5; 7.5 : 6; 7 : 6; 7 : 6; 7 : 6; 7 : 6; 12 : 6.
(less transverse [35 : 28] in S. masneri); no- Mesosoma in lateral view longer than
tauli absent (notauli present but shallow high (42 : 31), in dorsal view longer than
in S. masneri); axes of anterior scutellar wide (42 : 31). Neck bare, with irregular
pits parallel (axes convergent anteriorly in shallow grooves. Pronotal cushion dense;
S. masneri); posterior scutellar pits devel- pronotal shoulders distinctly convex,
oped on scutellar disk only (developed on rounded; lateral pronotal area smooth and
scutellar disk and laterally from it on lateral bare. Propleuron smooth, with dense short
rim in S. masneri). pilosity. Mesopleuron smooth, with two
Description. Female. Body length longitudinal sulci under tegula, shining and
2.3 mm. Forewing length 2.4 mm. Antenna bare at medial area. Sternaulus absent. An-
length 2.0 mm. terior incision of mesopleuron and setose
Body black; palpi yellow; tegulae, legs, pit on lower pronotum before it distinct.
venation, mandible and A2–A5 reddish Ventral side of mesopleuron pubescent and
brown; A7–A13 dark brown; A1 mainly smooth. Acetabular carina sharp, strongly
reddish brown, its base dark. projecting, in medial part moved anteriorly
Head in dorsal view transverse (50 : 28), between fore coxa (Fig. 7). Postacetabu-
slightly wider than mesosoma (50 : 45); in lar sulcus, mesodiscrimen and mesopleural
lateral view higher than long (45 : 28). En- epicoxal carina absent. Mesoscutum con-
tire head with fine setigerous punctures and vex, transverse (29 : 20), shine, with few
scattered long setae. Tentorial pit distinct. setigerous punctures and long setae along
Malar sulcus complete and deep. Clypeus proximal margin. Notauli absent. Humeral
smooth and shining, subrectangular, nar- sulcus developed as shallow pressure. An-
rower than height (10 : 11), weakly convex; terior scutellar pits large, not surrounded
clypeal flange broad and projecting forward anteriorly by edge (Fig. 6); its axes paral-
(Fig. 1). Epistomal sulcus indistinct, dis- lel. Axilla and scutellar disk smooth, with
tinct only in lateral view. Mandibles short, few setae. Axillar depression pubescent and
bidentate, lower tooth longer than upper. smooth. Lateral scutellar pit small. Poste-
Eye bare, large, weakly shorter than half of rior scutellar pits small, distinct and deep.
head height (21 : 20), oval (20 : 15). Malar Metascutellum with median and lateral
area/eye height 10 : 15. Ratio of pleurosto- keels; between keels and at lateral side de-
mal distance to head width 17 : 50. Anten- veloped row of regular deep punctuation.
nal shelf moderately projecting, smooth and Propodeum coarsely rugose, covered with
bare between toruli. Ocelli not large; LOL pale pubescence, distinctly transverse and
slightly shorter than width of front ocellus; weakly truncate posteriorly. Median pro-
POL longer than OOL (9 : 5). Occipital podeal keel distinctly projecting anteriorly
flange narrow, without sculpture. Postgenal and directed upwards. Posterior margin of
area with dense cushion of setae. propodeum without notch at lateral and
Antenna with slender and non-abrupt dorsal sides. All legs with trochantelli; fore-
7-segmented clava. A1 cylindrical, weakly and mid-legs slender, hind-femora weakly
arcuated, shine, covered with scattered long thickened.
setae, with two projecting lamellae apically Fore wing clear. Marginal vein slightly
overlapping base of A2. A2 subquadrate in elongate (8 : 7), stigmal vein equal to length
lateral view, in dorsal view truncated to of marginal vein. Costa not tubular, weakly
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270 V. CHEMYREVA. NEW AND LITTLE KNOWN SPECIES OF SPILOMICRUS
pigmented. Submarginal and basal veins Etymology. Derived from Latin pilosus
tubular and pigmented; 1CU shot. Ratio of (pilose) and venter (abdomen).
largest width to length of fore wing 16 : 40.
Petiole cylindrical, in dorsal view longer Spilomicrus kumaonensis Sharma, 1980
than its median width (12 : 10), with regu- (Figs 8–16)
lar and very deep longitudinal grooves. Pet-
iole with dense setae ventrally, hirsute belt Spilomicrus kumaonensis Sharma, 1980: 58; Mani
developed at lateral and dorsal sides medi- & Sharma, 1982: 238, 239; Johnson, 1992:
216; Rajmohana, 2006: 68.
ally. Base of T2 with deep lateral and basal
grooves and dense pale long setae (Fig. 16). Type material. India, Ramgarh, 26 km from
Posterior part of T2 smooth; surface of T3– Naini Tal (Kumaon Survey), 18–24 July 1974
T6 with dense setigerous punctures and (M.S. Mani & party), holotype female (USNM).
numerous long white setae. T5 expanded Other material. Russia: Khabarovsk Terr.,
Udyl Lake, 29–30 Aug. 1970 (D. Kasparyan), 1
laterally and covered with numerous setae
female. Sakhalin Prov., Kunashir I., Tretyakovo,
and punctures at sides. Surface of T6 and
3–10 Aug. 1973 (D. Kasparyan), 1 male. Primor-
T7 situated perpendicularly to preseding
skiy Terr.: vicinity of Spassk-Dal’niy, 25–27 July
tergites. Basal and lateral S2 grooves pres-
1991, 5–7 Aug. 1993, 9 July – 2 Aug. 1995 and
ent; setae at base abundant but not dense, 14–19 Aug. 2001 (S. Belokobylskij), 5 females,
posterior part of S2 with scattered long se- 2 males; Anisimovka, 3 Sept. 1988 (S. Beloko-
tae and with spot of rugose sculpture at pos- bylskij), 1 male; 24 km E from Spassk-Dal’niy,
terior margin (Fig. 3). S3–S5 narrow, with Novovladimirovka, 12 July 1991 (S. Belokob-
micropunctures medially; S6 with numer- ylskij), 1 male; Dalnegorskiy Distr., 2–8 Sept.
ous dense long erect setae and dense deep 1982 (S. Sinev), 1 male; Lazo Natural Reserve,
July 2007 (K. Makarov), 1 female; same locality,
punctures.
25–26 Aug. 2006 (S. Belokobylskij), 1 female;
Variation. Body length 2.0–2.3 mm. A1–
Kamenushka, 25–27 July 2010 (E. Tselikh &
A6 dark brown to red. A7–A12 subquad-
D. Rachin), 1 female; Ussuriysk Distr., 26–30
rate to transverse. Notauli visible as trace or
July 1972 (M. Kozlov), 1 male; Gornotaezhnoe,
absent; humeral sulcus distinct to shallow. 43°66´N, 132°25´E, 4–10 Aug. 1999 (M. Mi-
Median propodeal keel lower to distinctly chailovskaya), 1 female; same locality, 31 July –
higher than level of scutellum. Two lateral 5 Aug. 1991 (S. Belokobylskij), 1 female; 10 km
keel of metascutellum distinct to absent. NW from Artem, 30 July 2001 (S. Belokobyl-
Sculpture of T3–T5 coarse to fine. skij), 1 female; Kedrovaya Pad Natural Reserve,
14 Aug. 1982 (S. Belokobylskij), 1 female. Japan:
Male. Body length 1.2–2.5 mm. Similar
Hokkaido, 40 km S from Sapporo, 4 Sept. 1999
to female, but differs mainly in antennal and
(S. Belokobylskij), 3 females; Sapporo, Jozankei,
metasomal structures. A3–A13 dark brown
350 m, 1–10 and 21–29 Aug. 198 9, Aug. 1989
to reddish brown, covered by short dense
(K. Maeto & M. Sharkey), 5 males; Sapporo, 28
pale setae; A2 reddish brown, smooth, with
Aug. – 1 Sept. 1989 (M. Sharkey & K. Maeto), 2
long sparse setae. A4 weakly excavated; keel males; same locality, 24–29 July and 25 June – 2
developed from base of segment and reach- July 1988 (K. Maeto), 2 males; same locality, 1
ing to half of its length or longer. Ratios Aug. 1989 (M. Sharkey), 1 male; Honshu, Aichi,
of length to width of antennal segments in Shitara, Uradani, 900 m, 13 June – 24 July and
dorsal view: 24 : 7; 6 : 6; 13 : 5.5; 15 : 5.5; 14 19–25 Sept. 1994 (K. Yamagishi), 8 females, 4
males; Iwate Pref., Mt. Hayachine, 400 m, 27
: 5.5; 14 : 5; 13 : 5; 12 : 5; 11 : 5; 11 : 5; 11 :
June – 26 July 1989 (H. Makihara & M. Shar-
5; 10.5 : 4.5; 16 : 4. Proportions of segments
key), 1 female, 2 males; Gumma Pref., Matusuida,
very variable. T5 not expanded laterally.
Kirizumi Spa, 1100 m, 2 Sept. 1996 (L. Masner),
Apical sternite without dense long setae.
1 female; Tochigi Pref., 1000 m, Ohnuma Lake,
Distribution. Russia (Primorskiy Terr.),
10 Aug. 1989 (M. Sharkey), 1 female. South Ko-
Japan (Hokkaido, Honshu), China (Yun- rea, Chungbuk, Yeongdong-gun, Sangchonmyon,
nan Province), Taiwan, Nepal. 4 Aug. – 24 Sept. 2002 (P. Tripotin), 1 male.
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V. CHEMYREVA. NEW AND LITTLE KNOWN SPECIES OF SPILOMICRUS 271
Figs 8–16. Spilomicrus kumaonensis Sharma. 8, face; 9, head, dorsal view; 10, whole body; 11–13,
antenna of male in lateral view (11), A1–A5 in dorsal view (12, 13); 14, antenna of female, lateral
view; 15, mesosoma, dorsal view; 16, mesosoma and anterior part of metasoma, dorsal view. pc –
pleurostomal carina.
Taiwan: Wugeng, 16–22 March 1983 (H. & dition), 2 females, 1 male; Phulcoki, 2600 m, 13
M. Townes), 1 female, 9 males; Wushe, 1150 m, Oct. 1983 (A. Smetana), 1 male.
13 Apr. 1983 (H. Townes), 1 male; Taiching, Variation. Body length 1.9–3.1 mm.
Hsien, Anmashan, 2225–2230 m, 30 Apr. – 4 Metasoma and propodeum dark brown to
May 1990 (A. Smetana), 2 males; Nantou Hsien, black. Female A7 dark brown to red, sub-
E. Shankan, 2000–2200 m, 28 May 1990 (J. Her- quadrate to transverse; A2–A6 yellow to
aty), 1 male. Nepal: Kathmandu, Godavari, 6000 reddish brown; entire A1 dark or its distal
ft (=1830 m), 7–26 Aug. 1967 (Canadian Expe- part brown to reddish brown. Male A3 with
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272 V. CHEMYREVA. NEW AND LITTLE KNOWN SPECIES OF SPILOMICRUS
short keel (Fig. 12) or without keel (Fig. males (ZISP); vicinity of Ussuriysk, 17–19 July
13); A4 keel short, developed medially and 2001 (S. Belokobylskij), 1 male (ZISP). Japan:
not reaching of segment base (Fig. 12) or Hokkaido, Bibai, Kushunai, 200–250 m, 3 July
1989 (M. Sharkey), 1 female (CNCI); Okinawa,
distinctly developed from segment base
Hiji Waterfall, 11 May 1999 (B. Sinclair), 1 male;
and reaching of its half (Fig. 13). Clypeus
Okinawa Yona, Rhukyu Univ. Res. Station, May
weakly (7 : 6) to distinctly (7 : 5) transverse.
1999 (B. Sinclair), 1 female.
Trace in situ notauli visible or mesonotum
Comparative diagnosis. Spilomicrus co-
flattened; humeral sulcus distinct to shal-
matus sp. nov. differs from others Palaearc-
low. Median propodeal keel lower to distinct
tic and Oriental Spilomicrus species by fol-
over than scutellum. Lateral keel of metas-
lowing characters: head entirely with nu-
cutellum visible to indistinct. Posterior merous equable setigerous punctuation and
scutellar pits distinct and large to small and long setae (Figs 17, 19, 21); occipital flange
fused. Sculpture of T3–T5 distinct to fine. narrow and with distinct deep sculpture
Distribution. Russia (Khabarovsk and (Figs 19. 21); pronotum laterally with row
Primorskiy Terr., Kunashir I.), South Ko- of foveae along posterior margin (Fig. 23);
rea, Japan (Hokkaido, Honshu), Taiwan, mesopleuron laterally with numerous hori-
Nepal, Northern India (division of Uttara- zontal grooves and covered with dense pale
khand, Kumaun). setae (Fig. 23).
Description. Female. Body length
Spilomicrus comatus sp. nov. 3.0 mm. Fore wing length 3.0 mm. Antenna
(Figs 17–24) length 2.0 mm.
Body mainly black; tegulae, legs, vena-
Holotype. Russia, Primorskiy Terr., vicinity
tion, mandible and A1–A8 reddish brown;
of Anisimovka, 4 Sept. 1982 (V. Tobias) (ZISP).
A9–A13 dark brown; palpi yellow.
Paratypes. Russia: Primorskiy Terr., vicinity
Head in dorsal view distinctly trans-
of Spassk-Dal’niy, 4–7 Aug. 1987 (S. Belokob-
verse with weakly prominent antennal shelf
ylskij), 3 males (ZISP); same locality, 10 July
1990 (S. Belokobylskij), 1 female, 2 males (ZISP, (30 : 22) and wider than mesosoma (30 :
CNCI); same locality, 10–27 July 1991 (S. Be- 27), in lateral view higher than long (30 :
lokobylskij), 5 females, 13 males (ZISP, CNCI); 22). Head entirely covered by numerous
same local ity, 12 July 1993 (S. Belokobylskij), fine and equable setigerous punctuation
1 female (ZISP); same locality, 9–10 July 1995 with moderately long setae. Tentorial pits
(S. Belokobylskij), 3 males (ZISP); same locality, large. Malar sulcus complete, narrow. Clyp-
13 July 1999 (S. Belokobylskij), 2 males (ZISP);
eus bare, small, semicircular, as high as wide,
same locality, 14 Aug.–6 Sept. 2001 (S. Belokob-
convex. Mandibles projecting forwards
ylskij), 7 females, 3 males (ZISP, CNCI, BMNH);
and strongly overlapping, bidentate, upper
Lazo Nature Reserve, 25–26 Aug. 2006 (S. Belo-
tooth shorter than lower tooth. Eye oval
kobylskij), 10 females, 9 males (ZISP); vicinity
(13 : 10), with few short setae; ratio of half
of Chernigovka, 20 July 1991 (S. Belokobylskij),
1 female, 1 male; vicinity of Anisimovka, 4 Sept. of head height to height of eye 15 : 13. Ma-
1982 (V. Tobias), 1 female (ZISP); same local- lar space shorte r than eye height (10 : 13).
ity, 3 Sept. 1988 (S. Belokobylskij), 2 females, Ratio of pleurostomal distance to width of
1 male (ZISP); same locality, 10 Aug. 1991 (S. head 11 : 30. Ocelli: LOL shorter than width
Belokobylskij), 2 males (ZISP); same locality, of ante r ior ocellus (5 : 6); POL shorter than
29 Aug. 2001 (S. Belokobylskij), 3 females, 2
OOL (7 : 15). Occipital flange narrow, with
males (BMNH, ZISP); vicinity of Vladivostok,
distinct sculpture. Postgena with long setae
30 July 2001 (S. Belokobylskij), 1 female, 3 males
forming dense cushion.
(ZISP); Gornotaezhnoe, 43°66´N, 132°25´E,
Antenna slender with non-abrupt 5-seg-
4–18 Aug. and 5–7 Sept. 1999 (M. Michailov-
mented clava. A1 cylindrical, curved, slight-
skaya), 4 females (CNCI); same lacality, 31 July –
5 Aug. 1991 (S. Belokobylskij), 1 male (ZISP); ly broadened apically, with fine coriaceous
Merkushevka, 21 July 1991 (S. Belokobylskij), 3 sculpture and long setae. Apical rim simple.
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V. CHEMYREVA. NEW AND LITTLE KNOWN SPECIES OF SPILOMICRUS 273
Figs 17–24. Spilomicrus comatus sp. nov. 17, face; 18, whole body; 19, 23, mesosoma in dorsal (19)
and lateral view (23); 20, mesosoma and anterior part of metasoma, dorsal view; 21, head, dorsal
view; 22, 24, antenna of female (22) and male (24). aim – anterior incision of mesopleuron.
A2 rounded, in lateral and dorsal view trun- 4; 7 : 4; 6.5 : 4; 6.5 : 4; 6.5 : 4.5; 6.5 : 5; 6 : 5;
cate to base. Ventral side of A9–A13 weakly 6 : 5; 6 : 5; 7 : 4.
flattened, with well-developed MGS brush. Mesosoma in lateral view longer than
A8–A13 separated by deep gaps. In lateral high (20 : 13); in dorsal view longer than
view connection between A8–A13 situated wide (4 : 3). Neck bare, with deep and short
dorsally (Figs 18, 22). A13 without ventral longitudinal grooves. Pronotum with cush-
pit. Ratios of length to width of antennal ion of pale setae. Pronotal shoulders promi-
segments in dorsal view: 20 : 4; 6 : 4; 9 : 4; 7 : nent, rounded. Side of pronotum with row
© 2015 Zoological Institute, Russian Academy of Scienсes, Zoosystematica Rossica 24(2): 266–278
274 V. CHEMYREVA. NEW AND LITTLE KNOWN SPECIES OF SPILOMICRUS
of foveae and setae along posterior margin. tae. S6 with coarse and dense punctuation
Propleuron covered by dense pubescence. and with short setae apically.
Mesopleuron with numerous horizontal Variation. Body length 2.2–3.3 mm.
grooves and covered by pale setae. Sternau- Head equal to wider than mesosoma width.
lus absent. Anterior incision of mesopleu- A3 equal to distinctly longer than A2. A9–
ron distinct, with numerous setae before A13 dark brown to yellowish brown. A10–
and around it; pit on pronotum before this A11 subquadrate to weakly elongate. Peti-
incision absent. Acetabular carina sharp, ole equal to 0.20–0.38 of mesosoma length.
strongly prominent and moved posteri- Pubescence of S2 cover all surface of seg-
orly in medial part; postacetabular sulcus ment or its medial part only.
present. Area between acetabular carina Male. Body length 1.6–3.1 mm. Similar
and front coxa pubescent. Mesodiscrimen to female, but differs in some characters:
shallow. Mesopleural epicoxal carina devel- eyes larger, ratio of its height to half of head
oped only laterally. Mesoscutum transverse height 17 : 16; A3–A13 dark brown, with
(28 : 20). Notauli complete, broad, well short dense pale pubescence; A1–A2 red-
impressed. Humeral sulcus distinct. Meso- dish brown, smooth, with long sparse setae;
scutum, axilla and scutellum with few scat- A4 weakly excavated, with straight keel
tered long setae, smooth and shine. Scu- developed from its base and reaching 0.8 to
tellum flattened, with two large circular 0.9 of its length; ratios of length to width of
anterior scutellar pits. Axillar depression antennal segments in dorsal view: 20 : 4.5;
smooth and pubescent. Lateral scutellar 5 : 4; 15 : 4; 15 : 5; 10.5 : 4.5; 11 : 4.5; 12 : 4.5;
pits long and broad. Posterior scutellar pit 12 : 4.5; 12 : 4.5; 12 : 4.5; 11 : 4; 11 : 4; 14 :
large and deep (Figs 19, 20). Metascutel- 3, but sometimes proximal segments of fla-
lum pubescent, coarse rugose; median and gellum much more shortened; A3 equal to
lateral keels weakly projecting. Propodeum A4 or longer; petiole more elongate (21 : 7),
coarse rugose, with pale pilosity and sev- equal to 0.30–0.33 of mesosoma length.
eral longitudinal irregular keels, narrowed Distribution. Russia (Primorskiy Terr.),
posteriorly. Median propodeal keel project-
Japan (Hokkaido, Okinawa).
ing anteriorly and directed upwards. Pos-
Etymology. Derived from Latin comatus
terior margin of propodeum in dorsal view
(having long hair).
weakly arcuate. All legs slender, without
trochantelli.
Spilomicrus sergeyi sp. nov.
Fore wing clear. Marginal vein elongate
(Figs 25–32)
(8 : 3); stigmal vein longer than width of
marginal vein (9 : 8). Submarginal veins tu- Holotype. Female. Russia, Primorskiy Terr.,
bular. Costa and basal vein nebulous. Ratio vicinity of Spassk-Dal’niy, 4–10 Sept. 2001
of width to length of fore wing 15 : 37. (S. Belokobylskij) (ZISP).
Metasoma. Petiole cylindrical, elongate, Paratypes. Russia: Primorskiy Terr., vicinity
twice as long as wide, with deep longitudi- of Spassk-Dal’niy, 25–27 July 1991 (S. Belokob-
ylskij), 1 female, 8 males (ZISP, CNCI); 30 km E
nal grooves, entirely pubescent excluding
from Spassk-Dal’niy, 25 July 1991 (S. Belokobyl-
its distal third of dorsal side. T2 with micro
skij), 4 females, 4 males (ZISP, CNCI, BMNH);
punctures near posterior margin. T3–T5
vicinity of Spassk-Dal’niy, Evseevka, 17–18
with dense fine punctuation and one row
July 1991 (S. Belokobylskij), 1 female, 10 males
of long setae; setae denser laterally. T5 cov- (ZISP, BMNH); vicinity of Spassk-Dal’niy, No-
ered with numerous pale decumbent setae vovladimirovka, 12 July 1991 (S. Belokobylskij),
at side. T6–T7 very small. S2 smooth, with 1 female (ZISP).
weak cushion at base; other surface with Comparative diagnosis. The species easy
numerous scattered long setae. S3–S5 with differs from other Palaearctic species by fol-
dense punctuation and one row of long se- lowing characters: clypeus separated from
© 2015 Zoological Institute, Russian Academy of Scienсes, Zoosystematica Rossica 24(2): 266–278
V. CHEMYREVA. NEW AND LITTLE KNOWN SPECIES OF SPILOMICRUS 275
Figs 25–32. Spilomicrus sergeyi sp. nov. 25, face; 26, whole body; 27, antenna of female, lateral view;
28, head, dorsal view; 29, mesosoma and anterior part of metasoma, dorsal view; 30, female, posterior
part of metasoma, lateral view; 31, antenna of male, lateral view; 32, male A1–A8 in dorsal view.
clypeal flange with sharp inflection; episto- lated to Nigropria compressa Rajmohana &
mal sulcus deep; occipital flange moderately Narendran, 2000, but differs from it in hav-
broadened with irregular sculpture; acetab- ing moderately compressed body (strongly
ular carina moved anteriorly between fore compressed in N. compressa), strong pro-
coxa; median propodeal keel low, not elevat- jecting antennal shelf (weakly projecting in
ed anteriorly; anterior margin of T2 arcuate; N. compressa), clypeus large and convex, ep-
S6 with numerous dense long erect setae. istomal sulcus deep (clypeus small and flat-
Spilomicrus sergeyi sp. nov. is closely re- tened, epistomal sulcus shallow in N. com-
© 2015 Zoological Institute, Russian Academy of Scienсes, Zoosystematica Rossica 24(2): 266–278
