Transferral of Polycentropus timesis (Denning) comb. nov. from the genus Neureclipsis (Trichoptera, Polycentropodidae)

1 Pages·1995·0.54 MB·English

by  John S Weaver

PROC. ENTOMOL. SOC. WASH.
97(4), 1995, p. 892
Note
Transferral of Polycentropus timesis (Denning) Comb. Nov. from the
Genus Neureclipsis (Trichoptera: Polycentropodidae)
Polycentropus timesis (Denning) New Hampshire, shows that these speci-
comb. nov. mens are actually P. timesis.
This species is rather closely related to
Neureclipsis timesis Denning 1948, Bull. P. picicornis Stephens 1836, and differs in
Brooklyn Ent. Soc. 43: 119—, fig. 1 S. the male genitalia having preanal append-
Polycentropus picicornis. Blickle & age with a long slender ventroposterior api-
Morse 1955, Bull. Brooklyn Ent. Soc. 50: cal lobe and a short basodorsal lobe in lat-
96-98 [New Hampshire specimens are P. eral view, see figures of P. timesis in (Den-
ning 1948) and P. picicornis in (H. Mal-
timesis].
icky, 1983, Atlas ofEuropean Trichoptera,
Recent collections of caddisfly material The Hague). It is also noted that specimens
collected at Spruce Hole, Durham, New of P. picicornis from Europe and western
Canada exhibit slight differences in the
Hampshire, via Malaise traps, May-June
male genitalia; the form from Canada was
1990, by Donald S. Chandler, yielded spec- described by A. P. Nimmo (1986: 240-241,
imens of Neureclipsis timesis Denning 77?^ adult Polycentropodidae of Canada
(1948), a species that previously was only and the adjacent United States, Qaest. Ent.
known from the holotype collected in Am- 22).
herst, Massachusetts. Examination of the I am grateful to Oliver S. Flint, Jr.,
type and other specimens of N. timesis Smithsonian Institution, for his helpful sug-
shows that the hindwing of this species has gestions, Donald S. Chandler, University of
M with only two branches, revealing that New Hampshire, for providing specimens
this species does not agree with diagnostic examined, W. Pulawski, California Acade-
characteristics of the genus Neureclipsis my of Sciences, for the loan of the type,
McLachlan, and on this basis it is trans- and P. Perkins, Museum of Comparative
ferred to the genus Polycentropus Curtis. Zoology, and A. P. Nimmo for providing
Further examination of specimens from additional material.
New Hampshire previously identified as P. John S. Weaver III, Department ofPlant
picicornis by Blickle & Morse (1955), in Biology, University of New Hampshire,
the insect collection at the University of Durham, New Hampshire, 03824.