Leptocera angulispina Buck & Marshall 2009, new species

Leptocera angulispina Buck, new species (Figs. 148–154, 199) Leptocera finalis auctt., nec (Collin, 1956): Marshall, 1997 (in part). Description . On average slightly darker and smaller than related species. Enlarged acrostichals short and not very conspicuous, only about half as long as lower orbit...

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Bibliographic Details
Published in:GSA Bulletin
Main Authors: Buck, Matthias, Marshall, Stephen A.
Format: Other/Unknown Material
Language:unknown
Published: Zenodo 2009
Subjects:
Online Access:https://doi.org/10.5281/zenodo.5319480
http://treatment.plazi.org/id/BB4C084EFF85A7760CE0FC8CFAAAA460
Description
Summary:Leptocera angulispina Buck, new species (Figs. 148–154, 199) Leptocera finalis auctt., nec (Collin, 1956): Marshall, 1997 (in part). Description . On average slightly darker and smaller than related species. Enlarged acrostichals short and not very conspicuous, only about half as long as lower orbital bristle; prescutellar acrostichals not enlarged. Mid tibia with bristles relatively short: bristle above distal dorsal shorter than anteroapical bristles; posteroapical bristles of same length, extending barely to socket of ventrobasal metatarsal bristle. Male terminalia (Figs. 148–151): Sternite 5 with posteromedial desclerotized area somewhat small. Anterior section of surstylus with anterior process in lateral view more or less rectangular and relatively short; bare lateral ridge at apex of anterior process prominent and darkened (best seen in ventral view); ventral lobe rounded, not very prominent, with short bristles that are separated by a noticeable gap from the long, basal, posterior bristle. Posterior section of surstylus with few bristles on dorsal (posterior) surface and unequal apical bristles. Postgonite as in Fig. 199. Female terminalia (Figs. 152–154): Hind margin of sternite 7 produced medially. Sternite 8 with lateral margins slightly sinuate, posterolateral lobes relatively short, median process wide. Spermathecae subcylindrical, with scattered spicules, shallow apical invagination and similar basolateral depression (in paired spermathecae on side facing other spermatheca); surface weakly striate. Type material . Holotype ♂ (DEBU): U.S.A., Alaska, Richardson Hwy mi 206, 19.vi.1987, beaver pond, sweep, S.A. Marshall. Paratypes (all DEBU): 2 ♀♀, same data as holotype; 1 ♂, same but from debris on beaver run, 1 ♂, 2 ♀♀, same but from beaver pond mammal runs; 2 ♀♀, same but from debris nr. beaver pond; 2 ♀♀, same but from beaver dam. U.S.A. Alaska: 3 ♂♂, 1 ♀, Glenn Hwy 25 mi N Gakona, 18.vi.1987, alder /wet moss, S.A. Marshall. CANADA. Yukon Territory: 2 ♂♂, 2 ♀♀, Dempster Hwy, Tombstone Mts, ...