Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae)
Author
Oláh, J.
Author
Johanson, K. A.
text
Zootaxa
2008
2008-06-16
1802
1
248
journal article
11755334
Potamyia assamana
Oláh & Schefter
,
new species
Fig. 384
–
387
This species is similar to
P. daphne
Malicky
described from
Kerala
, and later recorded from
Karnataka
and
Tamil Nadu
(
Oláh
et al.
2006a
). It differs from
P. daphne
in the straight, not rounded anterior margins of segment IX; longer segment X; U-shaped, dorsal interlobular gap; phallotheca with straight, not undulating dorsum; and very large sub-apical ventral lobes.
Male. Body and wings light brown, with brown pubescence. Forewing membrane without maculation. Antennae less than twice as long as forewings. Abdominal segment V with minute, pointed, lobes. Spur formula 144. Protibiae with small spur. Pretarsal claws asymmetrical, laterally flanked by setal bundle. Mid- and hind-leg claws asymmetrical.
Wings. Forewing crossveins m-cu and cu running closely. Cu2 and A joining before wing margin. Hind wing stem of M plus proximal part of M3+4 almost tangential, running parallel with Cu1. Fork 1 present. Forewing 8.0 mm.
Male genitalia. Abdominal segment IX fused annularly, short; tergum half as long as sternum (
Fig. 384
). Anterior margins of segment IX straight, with posteriorly shifted dorsal section in lateral aspect (
Fig. 384
). Apical lobe on posterolateral margins small, almost absent, located immediately above narrow articulation cavity of gonocoxites (
Fig. 384
). Spine row on posterior margins of segment IX almost complete, not intermittent, with short gaps; spine lengths heterogenous; spines on laterocaudal protuberances of dorsum about 2 times longer than spines on posterior margina of segment IX; spines on apical lobes stiff, very densely set (
Fig. 384
). Intersegmental step between segments IX and X deep, partly occupied by pair of setose protuberances; appearing as setose laterocaudal lobes. Body of segment X long, with ventrad curving distal half ending in dorsad curving hook in lateral aspect (
Fig. 384
); bilobed in dorsal aspect (
Fig. 385
); ventrum bellied; curving apicoventral spiny hook dominating distal part (
Fig. 384
). Smooth mesal lobe reduced; dorsal interlobular gap U-shaped, wide, deep to mid-length of apex (
Fig. 385
). Dorsad curving apex of spiny hooks separated by dorsal interlobular gap, forming pair of birdbeak-shaped processes armed with mesad directed, stiff setae; shape highly dependent on observation angle. Setose area present on basal dorsolateral areas of segment X; process between segment IX and X absent. Pair of well-developed protuberances representing laterocaudal lobes present. Transverse and longitudinal sutures invisible. Pair of setose areas (superior or preanal appendages) circular, located at mid-length abouve ventral margin (
Fig. 384
), or representing setose dorsal ridge possibly homolog with vestigial dorsal setose lobes. Coxopodites significaltly strongly exceeding apex of segment X; rod-shaped, slightly broadening apicad from mid-length; slightly bending ventrad; uniformly curving mesad in ventral view (
Fig. 386
). Harpagones short, broad, tapering along their lengths in lateral view (
Fig. 384
); broader, pointing mesad in ventral view (
Fig. 386
). Phallotheca with enlarged phallobase (
Fig. 387
); straight horizontal shaft with regular straight dorsum; ventral subapical broadening strongly enlarged.
Endophallus
forming narrow tube at gonopore near bottom of phallobase. Chitinized endothecal process small, circular. Phallotremmal sclerites broad; vertical (
Fig. 387
).
Holotype
male
:
INDIA
:
Assam
,
Kameng
,
Salary
,
9.vii.1961
[
F. Schmid
] - (
ROM
, pinned).
Etymology.
assamana
, named after the
type
locality,
Assam
.