Chimarra braueri 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 braueri

description: Chimarra braueri, new species
Figs. 11, 60–64
Chimarra braueri resembles C. signata, C. schlingeri, C. nathani, and C. vitiensis in the presence of a large pale, hyaline spot on both the forewings and hind wings. The genitalia of C. braueri are unique in the shape of the gonopods, particularly the long, posterad oriented, tongue-shaped process.
Male. Body pale 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. 11). Forewings 4.6 mm (n=1), brown, with large, circular, pale hyaline spot centrally in wing, covering more than discoidal cell and median cell; relatively broad, ratio of length to breadth 3.4; R1 almost straight before crossvein r; radial sector produced anterad immediately before discoidal cell; discoidal cell originating at mid-length of wing, 2x longer than wide; median cell as long as discoidal cell; crossvein r situated at base of fork I; fork I originating before crossvein s at distance equal to 1/2 length of crossvein s; nygma located near base of fork II; fork III 1 /6th as long as wing; fork V as long as fork I, shorter than fork II; Cu2 well-separated from A at wing margin. Hind wings 3.7 mm (n=1), brown, with large, nearly circular pale hyaline spot covering more than discoidal cell and median cell; wings broad, ratio of length to breadth 3.2; fork I with footstalk about as long as crossvein s; wing margin slightly incurved at arculus, where Cu1 and Cu2 fused with margin; fork III slightly shorter than discoidal cell, and1/10th as long as wing; fork V as long as fork I; 1A+2A nearly 2x longer than 1A.
Male genitalia (Figs. 60–64). Segment IX clearly shorter than high; anterodorsal and anteroventral apex of segment IX similarly 2-lobed in lateral view; anterior plate rectangular, oriented anteroventrad; posterior 1/2 of segment expanded dorsad and anterad; each anterodorsal margin deeply concave in lateral view; each ventral margin uniformly convex, without incision at vertical apodeme; each posterior margin expanded into sharply triangular plate at mid-height of segment, well below cercus. In dorsal view segment IX with long, slender anterior lobes; in dorsal view anterodorsal margin forming deep, narrow, U-shaped incision without anterad-orienting processes on posteromesal margins. In ventral view segment IX nearly quadrangular, except incised at transverse apodeme; anterior margin shallowly concave; posterior margin shallowly concave, with minute central projection. Tergum X divided into small dorsal and ventral branches, surrounding phallic apparatus. In lateral view dorsal and ventral margins of basal 3/4 parallel-sided, strongly narrowing into short, parallel-sided distal ventral branch. Pair of ventral branches of tergum X smooth, except pair of lateral sensillae on each side, near ventral margin. Cerci located well below dorsal margin of segment IX and tergum X; orienting dorsad in lateral view; sightly club-shaped and oriented posterad in dorsal view; covered by long setae. Gonopods rather slender along their length, slightly longer than segment IX, 4-branched. Each dorsal branch short, hook-shaped in lateral view, large and sharply triangular in dorsal view; long, tongue-shaped, posterad oriented lobe present immediately ventrally of dorsal branch, slightly curved mesad along its length; ventral brach minute, located at posteroventral edge of each gonopod, nearly triangular in lateral view, large and sharply triangular in ventral view; mesal branch hook-shaped, curved anteromesad in dorsal and ventral view. All gonopod branches clearly exceeding tergum X in lateral view. Phallic apparatus slightly longer than rest of genitalia, slightly curved ventrad along its length; phallotheca, in lateral and ventral view, with anterior part 1.5x thicker than posterior part; apicoventral spine absent on phallotheca; phallotremal sclerite not observed; 2 very long, slender, nearly black endothecal spines present, right spine slightly longer than left spine.
Female. Unknown.
Holotype male: VITI LEVU: Naitasiri Prov., Nakobalevu Mt., 24–29.x.2002, 18°03’S, 178°25’E [18.0500°S, 178.4167°E], 340 m, leg. M. Irwin, E. Schlinger & M. Tokota’a [loc#10] [FNIC].
Paratypes: Same data as holotype, except 22.ix–9.x.2002 [loc#10] — 1 male [NHRS, DNA voucher IL 6]. Naitasisri Prov., 4.8 km N Veisari Stlmt., Log Road to Waivudawa, Malaise trap 1, 12.xii.2002 – 3.i.2003, 18.075°S, 178.362°E, 300 m, leg. E. Schlinger & M. Tokota’a [loc#14] — 1 male [BPBM]. Naitasiri Prov., 3.3 km N Veisari, logging rd. to Waivudava, Malaise trap, 8–31.iii.2003, 18.0592°S, 178.367°E, 300 m, leg. M. Tokota’a [loc#20] [NHRS].
Etymology: Braueri, named after Friedrich Brauer, who described the first Trichoptera from Fiji. 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 22-23, DOI: 10.5281/zenodo.210736