Table Of ContentPROC. ENTOMOL. SOC. WASH.
107(4), 2005, pp. 903-913
REVIEW OF OREGOCERATA RAZOWSKI (LEPIDOPTERA: TORTRICIDAE:
EULIINI) WITH DESCRIPTIONS OF FOUR NEW SPECIES
JozEF Razowski and John W. Brown
(JR) Polish Academy of Sciences, Institute of Systematic Zoology, Slawkowska 17,
Krakow, Poland; (JWB) Systematic Entomology Laboratory, PSI, Agricultural Research
Service, U.S. Department of Agriculture, % National Museum of Natural History, Smith-
sonian Institution, PC. Box 37012. MRC 168, Washington, DC 20013-7012, U.S.A. (e-
mail: [email protected])
—
Abstract. Oregocerata is a poorly known genus restricted to the Andes and its asso-
ciated ranges in northwestern South America (i.e., Colombia, Venezuela, Ecuador, Bolivia)
usually above 2000 m. Specimens are exceedingly rare in collections; most species are
known only from the holotype male. We describe and illustrate four new species: O.
triangulana (TL: Colombia), O. caucana (TL: Colombia), O. quadrifurcata (TL: Colom-
bia), and O. submontana (TL: Venezuela); and we propose a new combination, Ore-
gocerata chrysodetis (Meyrick). As currently defined the genus includes 9 species. It is
assigned to Euliini on the basis of the possession of a characteristic hairpencil on the
prothoracic leg.
Key Words: Tortricinae, systematics, Andes, Colombia, Ecuador, Bolivia, Venezuela
Oregocerata Razowski, 1988, is one of zontal diameter ofthe compound eye), long
several poorly known genera ofNeotropical antennal cilia in the male, and a patch of
Euliini apparently restricted to the higher long, flattened orange scales extending
elevations of the Andes and its associated from the base of the proboscis to the area
ranges in northwestern South America. between the bases ofthe foreleg coxae. The
Species of Oregocerata have been recorded male genitalia usually are characterized by
from Colombia, Venezuela, Ecuador, and a short, somewhat digitate process at the in-
ner base of the sacculus; a nan^ow, fringed
Bolivia, primarily at elevations above about
flange or group of spiniform setae from the
2000 m. Specimens are rare in collections,
dorsum ofthe phallus (at thejunction ofthe
with about halfthe species represented only
phallobase and aedeagus) representing a
by the holotype. Nothing is known of the modification of the anellus; and a highly
biology.
modified distal portion of the gnathos.
Originally described as monotypic, the
However, because the genitalic characters
genus includes four described species: O. have a mosaic distribution among the in-
orcida Razowski, O. cladognathos Razows- cluded species, none is a conxincing s\na-
ki, O. rhyparograpta Razowski and Becker, pomorphy for the genus. Females are
and O. zonalis Razowski and Becker. Four known only for O. orciiUi and O. zoinills.
new species and one new combination, O. The genus is assigned to HuHini based on
chrysodetis (Meyrick), are proposed herein. the possession ol" a characteristic hairpencil
Superficially, all species share elongate la- of the prtnhoracic leg in ihc male (Brown
bial palpi (length 2.0-3.0 times the hori- 1990).
PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON
904
Table 1. Male genitalia characters distinguishing species of Oregocerata. See text for description of char-
acters and character states.
Species
VOLUME 107, NUMBER 4 905
Figs. 1-3. Male genitalia of Oregocenilii; valvac spread, actleagLis iviiuAcd. 1. (>. orciihi. 1. (). ihuloi^nci-
thos, 3. O. zonalis.
——— ——
PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON
906
brown forewing lacking distinct pattern el- cally reflexed distal portion of the uncus,
ements. The male genitalia (Fig. 1) are which is unique within the genus. The socii
characterized by the absence of the digitate of the three are also distinct: narrow and
process from the base of the sacculus, un- digitate in O. cladognathos, conspicuously
modified anellus, moderately long distal broadened in the distal portion in O. orcula,
processes ofthe gnathos, simple uncus, and and moderately broad throughout in O. zon-
extremely broad distal portion of the socii. alis. The female genitalia (Fig. 10) have the
The last is the most conspicuous autapo- sterigma tapering proximally, broader and
morphy for the species. In the female gen- less strongly sclerotized than in O. orcula.
italia (Fig. 9) the ventral lobes ofthe eighth Holotype. 6, Ecuador, Loja Province,
tergite are large; and the anterior portion of Loja, 2750, 2—1 Dec 1992, V. Becker (VBC).
the sterigma is rounded, strongly sclero- Paratypes. 1 d, same data as holotype;
tized, and slightly asymmetrical. 2 S, Ecuador, Morona, Indanza, 2,800 m,
Holotype. 6 Bolivia, Cochabamba, In- 24 Dec 1992, V. Becker (VBC); 19, Ec-
,
cachaca, tropical cloud area, 2,100 m, 27 uador, Tungurahua, Patata, 300 m, 7 Dec
Aug-5 Sep—1956, L. Pena (USNM). 1992, V. Becker (VBC).
Paratype. 1 2, same data as holotype. Oregocerata triangulana Razowski and
Oregocerata cladognathos Razowski Brown, new species
(Fig. 2) (Figs. 4, 11)
—
Oregocerata cladognathos Razowski 1999: Diagnosis. The forewing of O. trian-
328 (description, illustration ofmale gen- gulana (Fig. 11) is conspicuously longer
italia). than that of its congeners, and has an ill-
defined brown trapezoidal patch in the mid-
Diagnosis. Oregocerata cladognathos
dle. The male genitalia (Fig. 4) are similar
is similar to its congeners in forewing size to those of O. cladognathos and O. rhypar-
and pattern. The male genitalia (Fig. 2) can
ograpta, with elongate distal processes of
be distinguished by the slightly swollen
the gnathos and a somewhat straight distal
base of the sacculus, unmodified anellus,
portion of the aedeagus. The genitalia can
moderately long distal processes ofthe gna-
be distinguished from those of O. cladog-
thos, simple uncus, and digitate socii.
nathos by the longer distal processes ofthe
Holotype. S Ecuador, Pichincha Prov-
, gnathos, conspicuous basal lobe of the sac-
ince, km 40 via Quito-Pto. Quito, 25 Mar
culus, shorter aedeagus, and spiny lobes of
1986, S. McKamey (UCB). the anellus. They differ from O. rhyparo-
Oregocerata zonalis Razowski and Becker grapta by the longer distal processes ofthe
(Figs. 3, 10) gnathos, the slightly more slenderaedeagus,
and the spiny anellus, which is thorny in O.
Oregocerata zonalis Razowski and Becker
rhyparograpta (i.e., the projections are
2002: 316 (description, illustration of
broader and/or shorter).
male and female genitalia).
Description. Head: Vertex pale grayish
—
Diagnosis. The male genitalia of O. brown, rust ventrolaterally; length of labial
zonalis (Fig. 3) are most similar to those of palpus ca. 3 times horizontal diameter of
O. orcula and O. cladognathos, with the compound eye, pale grayish brown on inner
basal lobe ofthe sacculus poorly developed surface, pale orange brown on outer sur-
and the distal portion of the gnathos rela- face; fan-shaped patch of flattened orange
tively long and slender. O. zonalis can be scales extending from base of proboscis to
distinguished by the simple transtilla, which between foreleg coxae, with a few scales at
is bilobed in O. orcula and has a single me- middle of patch extending ca. 2 times
dian lobe in O. cladognathos, and the api- length ofother scales. Thorax: Dorsum pale
VOLUME 107, NUMBER 4 907
Figs. 4-6. Male genitalia of Orci^occraia: \al\'ac sprcail. acdcaijus iviiuuccl. 4. (). !ri(ins;iil'iihi. 5. O. rli\-
parograpta, 6. O. siihinontcina.
— ——
PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON
908
grayish brown. Prothoracic leg with hair- those of O. triangulana, with a well-devel-
pencil. Forewing length 12.0 mm (n = 3), oped basal lobe of the sacculus, digitate so-
broad, expanding terminally, with costa cii, and long, slender distal processes ofthe
uniformly convex, apex short, termen rather gnathos. O. rhyparograpta can be distin-
straight; ground color whitish, weakly suf- guished by the slightly longer phallus with
fused with scattered tiny brown specks and a thorny anellus and the conspicuously
faint brown striae, especially in distal half; shorter distal processes of the gnathos.
costa with irregular band of brown scales; Holotype. S, Ecuador, Pastasa Prov-
a pale trapezoidal brown blotch near middle ince, Mera, 1,300 m, Dec 1992, V. Becker
of wing. Fringe cream, whiter towards tor- (VBC).
nus. Hindwing white, tinged with cream on
Oregocerata submontana Razowski and
periphery, weakly strigulated with pale gray
Brown, new species
brown in anteroterminal portion. Abdomen:
Male genitalia (Fig. 4; drawn from GS —(Figs. 6, 12)
USNM 68602) with tegumen rathernarrow; Diagnosis. The poorly developed fore-
uncus comparatively short, curved ventrally wing pattern of O. submontana (Fig. 12) is
from near base, rounded apically; socii similar to most other congeners. The male
moderately large, densely setose, ca. 0.8 genitalia (Fig. 6) of O. submontana can be
length of basal portion of gnathos; gnathos distinguished by the shorter uncus, shorter
arms relatively slender, distal processes lon- socii, shape of the distal portion of the ae-
gerthan basal portion; transtillabroad, shal- deagus, and the absence of cornuti.
low W-shaped, weakly sclerotized at mid- Description. Head: Vertex pale grayish
dle; valva rounded distally, with costa and brown, rust ventrolaterally; length of labial
ventral margin weakly curved; a conspicu- palpus ca. 3 times horizontal diameter of
ous, dorsally projecting, digitate process at compound eye, pale grayish brown on inner
base of sacculus; phallus short, phallobase surface, pale orange brown on outer sur-
slightly longer than aedeagus; a short, spiny face; fan-shaped patch of flattened orange
skirt at dorsal junction of phallobase and scales between foreleg coxae and base of
aedeagus (= lobes of anellus); aedeagus proboscis, with a few scales at middle of
slender, with a sclerotized distal process; patch extending posterad ca. 2 times length
vesica with one large and two small, fine of other scales. Thorax: Dorsum pale gray-
cornuti. Female: Unknown. ish brown. Prothoracic leg with hairpencil.
Holotype. S, Colombia, Cauca, Para- Forewing length 10.5 mm (n = 1), broad,
mo de Parace, Lake San Rafael, 29 Jan expanding terminally, with costa uniformly
1959, J. E G.—Clarke (USNM). convex, termen rather straight; [specimen
Paratypes. 2 S, same data as holotype worn] ground color whitish, weakly suf-
(USNM). fused with scattered tiny brown specks; a
—
Etymology. The specific epithet refers pale brown median fascia from costaca. 0.6
to the subtriangular patch of the forewing. distance from base; basal 0.3 with darker
scaling. [Fringe lacking]. Hindwing white,
Oregocerata rhyparograpta weakly strigulated with pale gray-brown in
Razowski and Becker anteroterminal portion. Abdomen: Male
(Fig. 5) genitalia (Fig. 6; drawn from GS USNM
95215) with tegumen rather narrow; uncus
Oregocerata rhyparograpta Razowski and
Becker 2002: 316 (description, illustra- shorter than in other species, curved ven-
tion of male genitalia). trally, pointed apically; socii broad, densely
— setose, ca. 0.6X length of basal portion of
Diagnosis. The male genitalia of O. gnathos; gnathos arms relatively slender,
rhyparograpta (Fig. 5) are most similar to distal processes less than twice as long as
— —
VOLUME 107, NUMBER 4 909
Figs. 7-8. Male genitalia of Oregocerata; valvae spread, aedeagus removed. 7, O. coiicana 8. O. c/muiri-
furcata.
basal portion; transtilla broad, shallow W- bu National Park, 13 km SE Sanare, 4,800',
shaped, weakly sclerotized at middle; valva cloud forest, 4-7 Mar 1978, J. B. Heppner
somewhat parallel-sided, with costa nearly (USNM). —
straight and ventral margin weakly upcur- Etymology. The specitic epithet refers
ved in distal 0.3; a conspicuous, dorsally to the submontane distribution vt( this spe-
projecting, digitate process at base of sac- cies.
culus; phallus short, phallobase about the
Oregocerata caiicana Razowski and
same length as aedeagus; a short, thorny
Brown, new species
skirt at dorsal junction of phallobase and
aedeagus; aedeagus slender, with a sclero- (Figs. 7, 13)
tized distal process; vesica without cornuti. Diagnosis. Oreiiocernin iiiiuaiui (Fig.
Female: Unknown. 13) is most similar to O. chrysodctis (see
Holotype. 6, Venezuela, Lara, Yacum- Clarke 1958: 235) in forewing length and
—
910 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON
Figs. 9-10. Female genitalia of Oregocerata. 9, O. orcula 10. O. zonalis.
maculation: both are pale orange with an pus pale grayish brown on inner surface,
ill-defined fascia across the middle of the pale orange brown on outer surface; fan-
wing, angled outward near the lower edge shaped patch of flattened orange scales be-
of the discal cell. The forewing pattern is tween foreleg coxae and proboscis, with a
slightly darker orange in O. caucana, with few longer scales at middle of patch. Tho-
the apical region scaled with orange-brown. rax: Dorsum concolorous with head, slight-
Because the holotype of O. chrysodetis ly browner anteriorly. Prothoracic leg with
mm =
lacks the abdomen, the genitalia cannot be hairpencil. Forewing length 8.7 (n
compared. On the basis ofthe aedeagus, O. 1); ground color whitish, densely strigulat-
caucana appears to be most closely related ed and suffused with pale orange with
to O. rhyparograpta and O. triangulana; sparse, small, inconspicuous dark specks;
the spiny lobes of the anellus are most sim- an ill-defined, pale fascia across middle of
ilar to those of the latter. Oregocerata cau- wing, angled outward at lower edge of dis-
cana can be distinguished from its conge- cal cell; a row of 5-6 small brown dots
ners by the short, curved distal processes of along termen. Fringe concolorous with
the gnathos, which are considerably shorter ground color, with dark brown median line.
than the basal portion of the gnathos (Fig. Hindwing whitish, tinged with cream in
7). The latter is the most conspicuous au- apical third. Abdomen: Male genitalia (Fig.
tapomorphy for this species. 7; drawn from GS USNM 68623) with teg-
Description. Head: Vertex whitish, umen rather narrow; uncus simple, slender,
tinged with pale brownish gray; labial pal- rather short, curved, pointed apically; socii
— ——
VOLUME 107, NUMBER 4 911
comparatively slender, densely setose, ca. Oregocerata quadrifurcata Razowski and
0.8 length of basal portion of the gnathos; Brown, new species
gnathos arms relatively slender, with distal (Figs. 8, 14)
portion extremely short, weakly curved;
Diagnosis. Oregocerata quadrifurcata
transtilla narrow, inverted U-shaped, weak-
is externally similar to O. caucana; it can
ly sclerotized at middle; valva broadest at
be distinguished from its congeners by its
base, gradually attenuate distally, with costa
nearly uniform pale brown forewing (Fig.
nearly straight and ventral margin weakly
14). The male genitalia (Fig. 8) are highly
curved throughout; sacculus with a com-
divergent from other Oregocerata, with a
paratively short, dorsally projecting, digi-
greatly expanded, quadrifurcate distal por-
tate process at base; phallus short, fairly
tion of the uncus, a pair of short, blunt pro-
broad, curved dorsad terminally; phallobase
cesses distally from the gnathos, and a
about as long as aedeagus; a short, spiny
highly modified base of the sacculus, all of
skirt at junction of phallobase and aedea- which are interpreted as autapomorphies.
gus; vesica with one large and two small
The dorsum ofthe aedeagus lacks the spiny
cornuti, and a sclerotized distal plate. Fe- lobes of the anellus present in many spe-
male: Unknown.
cies. The species is provisionally assigned
Holotype. 6, Colombia, Cauca, Para-
to the genus on the basis ofthe digitate pro-
mo de Parace, Lake San Rafael, 27 Jan
cess at the base of the sacculus and the
1959, J. F. G.—Clarke (USNM). patch of long, flattened orange scales ex-
Etymology. The specific epithet refers tending from the base of the proboscis to
to the Cauca region, Colombia. between the foreleg coxae, both characters
of which are characteristic of Oregocerata.
Oregocerata chrysodetis (Meyrick, 1926), Description. Head: Vertex cream,
new combination
weakly tinged with brownish; labial palpus
Tortrix chysodetis Meyrick 1926: 248 (de- elongate, pale grayish brown on inner sur-
scription); Clarke 1958: 235 (illustration face, pale orange brown on outer surface,
of adult). rust colored near junction of segments II
''Eitlicr chrysodetis: Powell et al. 1995: and III; fan-shaped patch of flattened or-
146 (checklist). ange scales extending from base of probos-
cis to between prothoracic coxae. Thorax:
Discussion.—Clarke (1958: 235) illus- Dorsum concolorous with head. Prothoracic
trated the holotype of Tortrix chrysodetis, leg with hairpencil. Forewing length 9.0
which lacks the abdomen. Because the gen- mm (n = 1), apex short, sharp; ternien
italia are lost, this species has defied con- somewhat oblique; ground color pale gray-
temporary generic assignment; it was treat- ish brown in basal area, tinged pale yellow-
ed as ''Eulia" chrysodetis by Powell et al. ish brown in remaining poilion o\' wing;
(1995). indicating uncertain placement. The dorsum and cosla with pale orange-brown
discovery of Oregocerata caiicana (de- to rust-colored scaling; liny black dt)ts in
scribed above), with a similar forewing median and subcostal parts of pi>slbasal
shape, size, and pattern, suggests that Eulia field, along lermen, and scattered in poste-
chrysodetis likely belongs in Oregocerata. rior halfof wing; dorsmn dotted \\ilh \\hite;
Although it is possible that O. chrysodetis markings darker than sulTusion. diltuse.
and O. caucana are conspecihc, subtle dif- represented by medial fascia and siibapical
ferences in forewing markings suggest oth- spots. Hindwing cream cokMcd, lighter to-
erwise. — wards base, with weak sirigulalion in ter-
Holotype. 9. Colombia, Central Cor- minal area. Alnlomcn: Male genitalia (Fig.
dilleras (BMNH). 8; drawn from GS USNM 68623) with teg-
—
912 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON
Figs. 11-14. Adults ofOregocerata. 11, O. triangulana, 12, O. submontana, 13, O. caucana, 14, O. quad-
rifurcata.
umen broad; uncus large, curved, greatly mo de Parace, Lake San Rafael, 27 Jan
swollen distally, with large, flattened, 1959, J. F. G.—Clarke (USNM).
crown-shaped apex; socii large, compara- Etymology. The specific epithet refers
tively broad, densely setose, extending to the somewhat quadrifurcate tip ofthe un-
nearly to distal end of gnathos arms; gna- cus.
thos arms relatively broad, with a pair of
Acknowledgments
short, blunt subterminal processes; transtilla
a slender bridge; valva nearly parallel-sided We thank the following for allowing us
in basal half, weakly attenuate in distal half, to examine specimens in their care: Jerry
truncate distally; dorsally projecting pro- Powell (UCB), Kevin Tuck (BMNH), and
cess at base of sacculus large, thorny, with Vitor Becker (Serra Bonita, Brazil). We
a smaller subtriangular prominence imme- thank the following for helpful reviews of
diately distad becoming contiguous with the manuscript: Stuart McKamey, USDA
sacculus; phallus short, aedeagus slightly Systematic Entomology Laboratory, Na-
longer than phallobase, with slender termi- tional Museum of Natural History, Wash-
nation, curved in basal 0.4; vesica with one ington, D.C. and Daniel Rubinoff, Univer-
large curved and one smaller, straight cor- sity of Hawaii, Honolulu. The figures were
nutus. Female: Unknown. drawn by Jdzef Razowski and David
Holotype. 6, Colombia, Cauca, Para- Adamski; the latter prepared the plates.
