Revision of the Oriental and Afrotropical species of Cheumatopsyche Wallengren (Hydropsychidae, Trichoptera)
Author
Oláh, János
Author
Johanson, Kjell Arne
Author
Barnard, Peter C.
text
Zootaxa
2008
2008-03-31
1738
1
171
journal article
11755334
Cheumatopsyche kala
Oláh & Johanson
,
new species
Fig. 236–239
This species is similar to
C. copiosa
Kimmins
from Central Africa but segment X is broad in both lateral and dorsal view; the dorsad orienting apicoventral setal lobes are much longer; the harpagones have a filiform process; and the phallotheca is not constricted at mid-length. The most striking feature of this dark species is the symmetrical protarsal claws, with no laterally flanking setal bundle.
Male. Body and wings dark brown, some part almost black; wing without spots or pattern. Maxillary palp segment I shortest, segment II longer, segments III and IV equally long, segment V as long as sum of segments I–IV. Head dorsum dark brown with 7 paler warts. Proepisternum without swollen setal wart. Each protibiae with 2 spurs. Protarsal claws symmetrical, without lateral setal bundle. Forewing length 10.0 mm, hind wing length
7.5 mm
. Forewing crossveins m-cu and cu forming unbroken line. Hind wing fork I absent.
FIGURES 231–235.
Cheumatopsyche fahara
Oláh & Johanson
,
new species
, holotype. 231 — genitalia, lateral; 232 — genitalia, dorsal; 233 — gonocoxite, ventral; 233 — gonocoxite, dorsal; 235 — phallus, lateral.
Male genitalia. Segment IX fused annularly; tergum longer than sternum (
Fig. 236
); anterior margins of segment IX regularly convex, more extended dorsally; apical lobe on posterolateral margins weakly developed, located above base of coxopodites; spine row on posterior margins of segment IX complete; spines on dorsum twice as long as others. Intersegmental depression between segment IX and segment X absent. Segment X broad (
Fig. 236
), with fused, well delineated, dorsad curving apicoventral setal lobes (
Fig. 236
); in dorsal view (
Fig. 237
) apicoventral setal lobes fused into broad, rounded, wing-shaped processes surrounding shallow dorsal interlobular gap (
Fig. 237
). Lateral interlobular gaps absent. Setaless mesocaudal lobe reduced; posterior margin concave, forming base of dorsal interlobular gap. Lateral setose areas produced into pair of elongating warts (
Fig. 237
), situated behind transverse sutures at mid-height on segment X. Short transverse sutures forming Y with longitudinal sutures (
Fig. 236
). Coxopodites parallel-sided, except dilated at apices; nearly straight in lateral view (
Fig. 236
); in ventral view (
Fig. 238
), very slender near base, gradually widening apically, slightly curving mesad from mid-length. Harpagones short, almost as wide as coxopodites in lat-
eral view (
Fig. 236
); each with short filiform process at apicolateral corner. Phallotheca (
Fig. 239
) with large phallobase; horizontal shaft short, gradually narrowing distad along proximal three-quarts; sclerotised endothecal process narrow, elongated; phallotremal sclerites broad; vestigial ventral endothecal membranous lobe visible.
Holotype
male:
MADAGASCAR
:
Mt. Tsaratanana
,
1700 m
,
x.1950
[
R. Paulian
] (
MNHN
, in alcohol).
Distribution:
Madagascar
.
Etymology:
after its very dark colour, black “kala” in Sanscrit.