Thirteen new species and new distribution records of Helicopsyche (Feropsyche) Johanson from Venezuela (Trichoptera: Helicopsychidae)
Author
Johanson, Kjell Arne
Author
Holzenthal, Ralph W.
text
Zootaxa
2004
711
1
40
journal article
10.5281/zenodo.169460
c6b6aaea-4e91-4f23-b4bd-c80a4f676e13
11755326
169460
5403C332-6597-48D3-BD4D-7AD6D4CDC2CA
Helicopsyche
(
Feropsyche
)
neblinensis
,
new species
Fig. 41–47
,
88
Together with
H
.
lara
,
new species
,
H
.
neblinensis
has a rounded, triangular gonocoxite, the form being unique for the American
Helicopsyche
.
Helicopsyche neblinensis
can be separated from
H
.
lara
, in dorsal view, by the slightly more slender tergum X having only five pairs of dorsal setae, and in lateral view, by the slightly wider gonocoxite.
Male. Head: Antennal scape about as long as eye diameter. Maxillary palp segments equally long, each segment slightly shorter than eye diameter. Cephalic warts oval, slightly convex, with golden brown and grey setae. Forewing golden browngrey, length
3.1–3.5 mm
. Sternum VI process (
Fig. 41, 42
) nearly 2/5 its segment length, covered by microtrichiae; in lateral view (
Fig. 41
), slightly curving posteriorly and tapering before apex, oriented posteriorly; distally parallelsided in ventral view (
Fig. 42
); apex bearing minute ventral lamellae and spines (
Fig. 42
).
FIGURES 41–47.
Helicopsyche neblinensis
,
new species
, holotype. 41—sternum VI process, lateral; 42—sternum VI process, ventral; 43—male genitalia, lateral; 44—male genitalia, dorsal; 45— male genitalia, ventral; 46—phallus, lateral; 47—phallus, ventral.
Male genitalia (
Fig. 43–47
). Segment IX, in lateral view (
Fig. 43
), with anterior lobe hyperboloid, oriented anteriad, present ventrolaterally; anterodorsal and anteroventral margins shallowly concave; in dorsal view (
Fig. 44
), with inner margin widely ellipsoid; in ventral view, (
Fig. 45
) without posterior process; lateral apodeme present as anterodorsally oriented, nearly straight line (
Fig. 43
) nearly reaching anterior margin; submarginal line present; tergal transverse apodeme absent; sternal transverse apodeme absent. Segment X, in lateral view (
Fig. 43
), oriented posteroventrad, nearly straight; strongly tapering along its length, apex slightly pointed and curving ventrally; in dorsal view (
Fig. 44
), slightly narrowing toward apex; apex deeply and narrowly notched (
Fig. 44
); with 5 pairs of about equally long, weak megasetae in longitudinal group starting at distal half. Superior appendage (
Fig. 43
) tubular in dorsal view, slightly clubshaped in lateral view, oriented posterolaterally. Primary branch of gonocoxite, in lateral view (
Fig. 43
), generally widely triangular, with slightly undulate dorsal margin; apex rounded in lateral view, produced into hooklike process visible in dorsal view (
Fig. 44
); central part of primary branch wider than height of central part of tergum X (
Fig. 43
); anterodorsal margin convex, smooth; posteroventral margin weakly sigmoid.; basimesal lobe large, tubular, protruding primary branch and with undulating apex (
Fig. 43, 45
); with slightly converging median margins armed with strong setae; with about 6 long megasetae on dorsal margin; basal plate, in lateral view (
Fig. 43
), nearly straight, oriented anteroventrally, apex rounded; in ventral view (
Fig. 45
), strongly narrowing toward apex. Phallus, in lateral view (
Fig. 46
), with anterior half curving posteriorly, gently bent ventrad at midlength, dorsal margin convex along its length; ventral margin curving; anterior 1/5 about as broad as its central part (
Fig. 46
); in ventral view (
Fig. 47
), tubular along its length; phallobase absent; endotheca slightly produced; sperm channel undivided; sclerotized posteroventral part narrow.
Holotype
male:
VENEZUELA
: T.F.A. [Territorio Federal Amazonas = Estado Amazonas]:
Cerro de la Neblina, Basecamp,
0°51'N
,
66°10'W
,
140 m
,
13–15.iii.1984
, O.S. Flint, Jr. & J. Louton (
NMNH
, pinned).
Paratypes
:
same data as
holotype
—
8 males
,
9 females
(
NMNH
, pinned); same data as
holotype
, except
20–24.iii.1984
, O.S. Flint, Jr. & J. Louton —
30 males
,
50 females
(
NMNH
, alcohol),
2 males
,
2 females
(
UMSP
, alcohol),
2 males
,
2 females
(
NRM
, alcohol),
2 males
,
2 females
(
IZAM
, alcohol); same data as
holotype
, except
0°50'N
,
66°9'44''W
,
140 m
,
13–20.ii.1984
, D. Davis & T. McCabe —
1 male
,
6 females
(
NMNH
, alcohol); same data as
holotype
, except
0°50'N
,
66°9'44''W
,
140 m
,
21–29.ii.1984
, D. Davis & T.McCabe —
3 males
,
4 females
(
NMNH
, alcohol); same data as
holotype
, except
0°50'N
,
66°9'44''W
,
140 m
,
1–10.iii.1984
, D. Davis & T. McCabe —
14 males
,
19 females
(
NMNH
, alcohol); same data as
holotype
, except
8–9.ii.1985
, W.E.Steiner —
7 males
,
10 females
(
NMNH
, pinned); same data as
holotype
, except
10–20.ii.1985
, P.J. & P.M. Spangler, R.A. Faitoute, & W.E. Steiner —
4 females
(
NMNH
, pinned); same data as
holotype
, except Camp IV,
0°58'N
,
65°57'W
,
760 m
,
15–18.iii.1984
, O.S. Flint, Jr. —
2 males
(
NMNH
, alcohol).
Distribution.
Venezuela
(Amazonas).
Etymology.
neblinensis
, derived from the
type
locality, Cerro de la Neblina. The name is to be treated as a noun in the genitive case.