Table Of ContentPROC. ENTOMOL. SOC. WASH.
101(2), 1999. pp. 458-459
Note
Validation of Neohydatothrips samayunkur (Kudo) (Thysanoptera: Thripidae)
for a Thrips Damaging Marigolds {Tagetes spp.)
Mound and Marullo (1996, Memoirs on tion of A^. pseudoannulipes in Mound and
Entomology International 6: 171) upon Marullo (1996) represents N. samayunkur.
examining a paratype of Neohydatothrips A non-type specimen from Mexico with the
pseudoannulipes Johansen (1983, Anales same collection date and locality as the par-
del Instituto de Biologia Universidad Na- atype of A^. pseudoannulipes examined by
cional Autonoma de Mexico 53: 108.) Mound and Marullo (1996) is identified
from Hidalgo, Mexico, concluded that the here as N. samayunkur.
paratype and specimens collected on Tag- Neohydatothrips samayunkur and N.
etes sp. plants in Costa Rica were the pseudoannulipes are similar in coloration of
same species and redescribed the species the antenna and body, but the brown bands
based on material from Costa Rica. on the forewings and the coloration of tib-
Mound et al. (1996. Australian Journal of iae are different. Neohydatothrips sama-
Entomology 35: 201) subsequently re- yunkur has the occipital apodeme on the
ported N. pseudoannulipes from Queens- head separated from the compound eyes,
land and New South Wales, Australia, on the forewing has a pale apical band and
Tagetes erecta L. and T. minuta L. More- lacks setae on the hind vein, abdominal seg-
over, they treated Hydatothrips {Neohy- ment X is as brown as are segments VII-
datothrips) samayunkur Kudo (1995. Ap- IX, and the tibiae are brown medially and
plied Entomology and Zoology 30:169) as otherwise yellow. In contrast, N. pseudoan-
a junior synonym of N. pseudoannulipes. nulipes has the occipital apodeme touching
Kudo described H. samayunkur from the compound eyes, the forewing has a
specimens collected on Tagetes sp. in Shi- brown apical band and two setae on the
zuoka, Japan, and also examined speci- hind vein within the brown band, abdomi-
mens from Okinawa and Hawaii where it nal segment X is pale, and the tibiae are
was first reported as N. variabilis (Beach) completely yellow.
(Tsuda and Sakimura. 1988. Proceedings Neohydatothrips variabilis (Beach) is
of the Hawaiian Entomological Society confused occasionally with N. samayunkur
28:16). but is readily differentiated by the presence
After examining two paratypes of N. of two setae on the hind vein of the fore-
pseudoannulipes labeled with different col- wing, abdominal segments IX-X yellowish
lection data than the paratype examined by brown or paler than segments VII-VIII, and
Mound and Marullo (1996) and specimens the hind tibiae completely yellow.
collected on marigolds from Hawaii and The current distribution ofN. samayunk-
Australia, I conclude that the marigold ur is Costa Rica, El Salvador, Mexico (Hil-
specimens are not conspecific with N. pseu- dago, Michoacan), United States (Florida,
doannulipes. Therefore, Hydatothrips sa- Hawaii), Australia (New South Wales,
mayunkur Kudo is revalidated (revised sta- Queensland), Japan (Okinawa, Shizuoka),
tus), and is further redesignated here as and Sri Lanka. Except fortwo countries, the
Neohydatothrips samayunkur (Kudo) (new reported hosts were marigolds (Tagetes er-
combination). Moreover, A^. pseudoannu- ecta L., T. minuta L. and Tagetes sp.).
lipes is the correct name for the species de- Specimens from El Salvador were inter-
scribed by Johansen (1983) and the descrip- cepted at agricultural quarantine, Houston,
VOLUME 101, NUMBER 2 459
TX, on unknown flowers. The slide label Sueo Nakahara, Systematic Entomology
for a specimen from Hidalgo, Mexico, lists Laboratory, PSI, Agricultural Research
Bidens, Eupatoriutn, and Salvia. A speci- Service, U.S. Department of Agriculture,
MD
men from Michoacan, Mexico was inter- 10300 Baltimore Avenue. Beltsville,
cepted on grass at agricultural quarantine, 20705-2350, U.S.A. (e-mail: snakahar@sel.
San Ysidro, CA, in 1965. barc.usda.gov)
PROC. ENTOMOL. SOC. WASH.
101(2), 1999, pp. 459-460
Note
Sialis vagans (Ross) (Megaloptera: Sialidae) and Amphinemura nigritta (Provancher)
(Plecoptera: Nemouridae) Trapped by Mountain Laurel (Kalmia latifolia L.)
(Ericaceae) Flowers
While sampling a small impoundment in flies (Plecoptera) from the floral clusters.
the Frederick City Municipal Forest along Dr. Oliver S. Flint, Jr. (Department of En-
Little Fishing Creek (Frederick Co., Mary- tomology, Smithsonian Institution, Wash-
land) on May 24, 1998, we observed moun- ington, D.C.) identified the alderflies as
tain laurel (Kalmia latifolia L.) in full Sialis vagans (Ross) (Megaloptera: Siali-
bloom around the pond. Closerexamination dae). Ross (Ross. 1937. Bulletin of the Il-
ofthe floral clusters revealed large numbers linois National History Survey 21(3): 57-
of adult alderflies (Megaloptera: Sialidae). 78) first described this species from speci-
Some alderflies appeared to be stuck to the mens collected from lakes and rivers. Dr.
stems of the flowers by their tarsi; others Charles Nelson (Department of Biological
were stuck to the corolla of the flowers by and Environmental Sciences, University of
their wings. Although some of the speci- Tennessee at Chattanooga, Chattanooga,
mens were dead, many were alive. As we TN) determined the stoneflies to be Amphi-
removed several alderflies, we noted that nemura nigritta (Provancher) (Plecoptera:
the stalk, calyx, and corolla of the flowers Nemouridae).
were sticky to the touch. Mountain laurel is a common shrub dis-
We determined the number of floral clus- tributed from Maine to Mississippi and Al-
ters on two bushes (approximately 1.3 m in abama. The inflorescence consists of ter-
height) within 1—2 meters of the pond mar- minal convex flower clusters. Richard A.
gin, and on a third bush along Little Fishing Jaynes (Jaynes, 1997. Kalmia: Mountain
Creek exiting the pond. The two bushes Laurel and Related Species, Timber Press)
along the margin of the pond had 25 and indicates that the stalk, calyx, and corolla
97 floral clusters; the one along the stream of K. latifolia flowers are covered with
had 18. We also counted the adult alderflies glandular, sticky hairs. This sticky secretion
on each bush. Those along the pond margin is believed to prevent access of crawling
contained 22 and 27 adult alderflies. Simi- insects to pollen and nectar.
lar numbers ofalderflies were found on oth- The poisonous properties of mountain
er bushes along the pond margin. The bush laurel sap are well documented (Jaynes,
along the stream had not trapped any al- 1988. Kalmia: The Laurel Book II, Timber
derflies; however, we did recover 10 stone- Press). The sap contains a group of related
