Chimarra vuda Johanson & Oláh, 2012, new species
Creators: name: Johanson, Kjell Arne
name: Oláh, János
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Philopotamidae
Chimarra
Chimarra vuda

description: Chimarra vuda, new species
Figs. 15, 80–84
Chimarra vuda is similar to C. tokotaai and C. naitasirensis in having simple, dorsad-curved gonopods; a strongly enlarged phallotremal sclerite in the phallic apparatus; absence of large endothecal spines; and an endotheca with a group of minute, strongly sclerotized spicules. Chimarra vuda is distinguished from the other 2 species by its nearly parallel-sided gonopods in lateral view; a phallotremal sclerite that is about 2x longer than the width of the posterior part of phallotheca; and by the presence of 3 groups of sclerotized spicules in the phallic endotheca.
Male. Body yellowish-brown, dorsal part of meso- and metathorax brown. Large dark area between lateral and anterior ocelli. Foreleg anterior claw as long as foreleg spur.
Wings (Fig. 15). Forewings 6.6 mm (n=1), brown; broad, ratio of length to breadth 3.3; R1 slightly undulating before crossvein r; radial sector slightly produced anterad immediately before discoidal cell; discoidal cell originating slightly distally of mid-length of wing, nearly 3x longer than wide; median cell slightly shorter than discoidal cell; crossvein r originating from basis of fork I; fork I originating before crossvein s at distance equal to length of crossvein s; nygma located near base of fork II; fork III 1 /5th as long as wing; fork V about as long as fork I, shorter than fork II; Cu2 situated close to A at wing margin. Hind wings 5.3 mm (n=1), brown; broad, ratio of length to breadth 2.9; margin slightly incurved at arculus, where Cu1 and Cu2 fused with margin; fork III 2x longer than discoidal cell and 1/6th as long as wing; fork V about as long as fork I; 1A+2A 4x longer than 1A.
Male genitalia (Figs. 80–84). Segment IX about as long as high; each anterodorsal margin nearly straight in lateral view; each ventral margin nearly straight; each posterior margin slightly produced posterad into rounded, triangular lobe starting at mid-height of cercus; ventral side of posterior-most part of segment IX with scattered setae (Fig. 82). In dorsal view with narrow anterior lobes; anterodorsal margin with wide, deep incision in dorsal view. In ventral view segment IX with shallowly concave anterior margin and almost straight posterior margin; posterior margin without central projection. Tergum X simple; tapering apically in lateral view (Fig. 80); orienting ventrad, nearly straight; divided into 2 slightly mesad-curved, lateral branches from base in dorsal and ventral view (Figs. 81, 82); each branch uniformly narrowing posteriorly in dorsal and ventral view, apically pointed, without processes; sensillae invisible. Cerci large, broad, located immediately below dorsal margin of segment IX and tergum X and oriented posterodorsad in lateral view; tube-shaped in dorsal view; covered by long setae. Gonopodsunbranched, longer than segment IX, slightly curved dorsad and sickle-shaped in lateral view; anterodorsal margin shallowly concave; ventral margin uniformly convex; posteroventral corner not produced into tooth in lateral view; in ventral view forming broad plates widening posteriorly to 1/2-length; tapering from 1/2-length into mesad curved apex; each basal 1/2 of mesal margin nearly straight, weakly diverging with minute mesal tooth. Phallic apparatus nearly 2x longer than rest of genitalia: phallotheca, in lateral and ventral view, with anterior part slightly more than 2x thicker than posterior part; apicoventral spine absent on phallotheca; strongly enlarged phallotremal sclerite in phallic apparatus forming complicated structure 1/3rd as long as phallic apparatus; large endothecal spines absent; endotheca with 3 groups of minute, strongly sclerotized, well separated spicules; anterior group very densely packed, dark, located ventrally of posterior part of phallotremal sclerite; apical 2 groups formed by densely packed spicules, and more scattered spicules.
Female. Unknown.
Holotype male: VITI LEVU: Vuda Prov., Koroyanitu N.M.P. Abaca Village, Malaise trap, 6–26.v.2003, 17°40’S, 177°33’E [17.3333°S, 177.55°E], 400 m, leg. M. Irwin, E. Schlinger & M. Tokota'a [loc#01] [FNIC].
Etymology: Vuda, named after the Vuda Province, the type locality of the species.
Distribution: Viti Levu.
description: Published as part of Johanson, Kjell Arne & Oláh, János, 2012, Revision of the Fijian Chimarra (Trichoptera, Philopotamidae) with description of 24 new species, pp. 1-58 in Zootaxa 3354 on pages 28-30, DOI: 10.5281/zenodo.210736