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
)
perija
,
new species
Fig. 79–85
,
88
This new species is similar to
H
.
circulata
and
H
.
planorboides
and can be separated from those species based on characters discussed in the diagnosis of
H
.
circulata
.
Male. Head: Antennal scape slightly longer than eye diameter. Maxillary palp segments equally long, as long as eye diameter. Cephalic warts oval, about half as long as eye diameter; with pale grey and dark grey setae, some dark brown setae near lateral margins. Forewing pale golden grey, length
3.1–3.9 mm
. Sternum VI process (
Fig. 79, 80
) 2/5 its segment length, apparently smooth; in lateral view (
Fig. 79
), slightly curving posteriorly, tubular, except narrowing at apex; in ventral view (
Fig. 80
), parallelsided; distally with numerous ventral subapical lamellae and apical, minute spines (
Fig. 80
).
FIGURES 79–85.
Helicopsyche perija
,
new species
, holotype. 79—sternum VI process, lateral; 80—sternum VI process, ventral; 81—male genitalia, lateral; 82—male genitalia, dorsal; 83—male genitalia, ventral; 84—phallus, lateral; 85—phallus, ventral.
Male genitalia (
Fig. 81–85
). Segment IX, in lateral view (
Fig. 81
), with anterior lobe sharply triangular, oriented anterodorsad and located ventrolaterally on segment; anterodorsal margin concave, anteroventral margin shallowly concave; in dorsal view (
Fig. 82
), with inner margin widely ellipsoid; in ventral view (
Fig. 83
), with rounded posterior process; lateral apodeme sigmoid, pointing toward anterior apex of segment, fading before submarginal line (
Fig. 81
); submarginal line well developed, strongly convex anteriorly; transverse apodemes absent. Segment X, in lateral view (
Fig. 81
), oriented posteroventrad, nearly straight; narrowing along its length toward rounded apex; in dorsal view (
Fig. 82
), wide, with subparallel lateral margins; apex with wide, Vshaped notch (
Fig. 82
); with about 17 pairs of about equally long megasetae in longitudinal group starting at proximal half on segment. Superior appendage (
Fig. 81
) tubular; oriented ventrolaterad (
Fig. 81, 82
). Primary branch of gonocoxite, in lateral view (
Fig. 81
), widely clubshaped, with slightly undulate dorsal margin; apex rounded in lateral and dorsal views (
Fig. 81, 82
); central part of primary branch about as wide as height of central part of tergum X (
Fig. 81
); anterodorsal margin nearly straight, smooth; posteroventral margin slightly convex, undulated; basimesal lobe short, somewhat pointed in lateral view (
Fig. 81
); in ventral view, with about rightangled median corner, with weakly produced posterior setal bases (
Fig. 83
); with nearly straight and parallelsided, smooth median margins; with about 3 long megasetae on apical margin; basal plate, in lateral view (
Fig. 81
), tapering toward apex; in ventral view (
Fig. 83
), strongly anteriorly rounded. Phallus, in lateral view (
Fig. 84
), smoothly bent ventrad at proximal 1/3, dorsal margin sigmoid along proximal 2/3; ventral margin gently curving ventrally at midlength; anterior 1/5 nearly
2x
broader than its central part (
Fig. 84
); in ventral view (
Fig. 85
), narrowing toward midlength; phallobase present; endotheca produced into dorsal lobe (
Fig. 84
); sperm channel apparently undivided; sclerotized posteroventral part wide (
Fig. 84
).
Holotype
male:
VENEZUELA
:
Táchira
:
trib. to Río El Valle,
3.8 km
SE El Zumbador,
7°57.411'N
,
72°04.394'W
,
2730 m
,
21.iv.1995
, Holzenthal, Cressa, Rincón (
UMSP
000022197) (
UMSP
, pinned).
Paratype
:
VENEZUELA
: Zulia:
Parque Nacional
Perijá
, Río Negro in Toromo,
10.051°N
,
72.712°W
,
360 m
,
15.i.1994
, Holzenthal, Cressa, Rincón —
1 male
(
UMSP
, pinned).
Distribution.
Venezuela
(
Táchira
, Zulia).
Etymology. The name
perija
, is derived from the
type
locality, Parque Nacional
Perijá
. The name is to be treated as a noun in apposition.
NEW
DISTRIBUTION RECORDS OF VENEZUELAN
HELICOPSYCHE
(
FEROPSYCHE
)