Pseudoneureclipsis halongensis, Oláh, János & Johanson, Kjell Arne, 2010

Oláh, János & Johanson, Kjell Arne, 2010, Contributions to the systematics of the genera Dipseudopsis, Hyalopsyche and Pseudoneureclipsis (Trichoptera: Dipseudopsidae), with descriptions of 19 new species from the Oriental Region., Zootaxa 2658, pp. 1-37 : 29-30

Pseudoneureclipsis halongensis , new species

Figs 73–76

This small-sized, brown species from Vietnam is similar to P. arimaspos Laudee & Malicky, 1999 , from Thailand, particularly due to the presence of a mesal process on each preanal appendage having strong terminal spine-like setae. The new species differs in several genitalic characteristics: segment IX, especially the tergite, is much shorter and strap-like; the setose segment X is long and narrow in dorsal view, not short and broad; the preanal appendages have a small ventroapical lobe, easily seen in lateral view; the paraproctal process is slender and spine-like, not bifid; the coxopodites are shorter, only slightly longer than the harpagones; and the coxopodites are almost parallel-sided in ventral view, each having a short apicomesal narrowing part, not long.

Male. Forewing length 4.5 mm.

Male genitalia. Segment IX extremely short; tergite short, strap-like; sternite slightly longer than tergite; entire segment forming narrow strap, except at venter. Setose segment X long, parallel-sided along its length, except slightly narrowing apically in dorsal view. Preanal appendages forming broad, auriform flaps, each with small ventroapical lobe, and with stout setose process projecting from ventromesal surfaces of flaps and visible in lateral and dorsal views. Pair of paraproctal processes slender, spine-like, with broad bases; without setae; basal parts extending ventrad, fusing under phallic apparatus; forming U-shaped, wide strap beneath phallic apparatus. Inferior appendages with coxopodites sub-triangular in lateral view, slightly longer than harpagones; tapering just before rounded apices in lateral and ventral views. Harpagones located basodorsally, forming mesoventrad-curving spines with broad bases. Intersegmental membrane of each inferior appendage (articulation line between coxopodites and harpago) well visible. Phallic apparatus with short, broad phallobase continuing into straight, horizontal, tube-like phallotheca; end of phallotheca and protruding endotheca discernible; 2-part and elongate sclerotized structures scarcely visible inside phallotheca, ending in protruding endotheca; protruded endotheca covered by minute, densely packed microtrichia.

Holotype male: VIETNAM: Halong Archipelago, Cat Ba Island, 17.v.1987, at light [J. Oláh], (OPC). Etymology. Halongensis , derived from the type locality.

Figures

FIGURES 73 – 76. Pseudoneureclipsis halongensis, new species, holotype male. 73 — genitalia, left lateral; 74 — genitalia, dorsal; 75 — genitalia, ventral; 76 — phallus, left lateral.