Chimarra kimminsi, Johanson, Kjell Arne & Oláh, János, 2012

Johanson, Kjell Arne & Oláh, János, 2012, Revision of the Fijian Chimarra (Trichoptera, Philopotamidae) with description of 24 new species, Zootaxa 3354, pp. 1-58 : 41-43

Chimarra kimminsi , new species

Figs. 23 , 124–128

The male genitalia of C. kimminsi somewhat resemble those of C. helomyzida , C. cakaudrovensis , C. cartwrighti , C. manni , C. lavensis , C. devoensis and C. vanuensis , particularly in the shape of the gonopods in lateral view. Chimarra kimminsi is distinguished from these other species by the absence of a dorsal process on each of the branches of tergum X.

Male. Head and thorax brown, dorsal part of meso- and metathorax dark brown. Area between ocelli yellowish-brown. Foreleg anterior claw as long as foreleg spur.

Wings ( Fig. 23 ). Forewings 4.1 mm (n=1), brown. Forewings broad, ratio of length to breadth 3.0; R1 nearly straight before crossvein r; radial sector not produced anterad immediately before discoidal cell; discoidal cell originating at mid-length of wing, 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 1/2 length of crossvein s; nygma located near base of fork II; fork III nearly 1/7th as long as wing; fork V about as long as fork II; Cu2 ending in wing margin close to A. Hind wings 3.3 mm (n=1), brown; ratio of length to breadth 2.7; margin weakly incurved at arculus, where Cu1 and Cu2 fused with margin; fork III slightly longer than discoidal cell and 1/5th as long as wing; fork V longer than fork I; 1A+2A about 3x as long as 1A.

Male genitalia ( Figs. 124–128 ). Segment IX clearly taller than long; anterodorsal margins with deep rounded concavity in lateral view; ventral margins irregularly convex, incised at vertical apodeme; each posterior margin smoothly convex; with small, rounded posterior process at mid-height, starting well below each cercus; ventral side of posterior margin of segment IX with few setae ( Fig. 126 ). In dorsal view with short, pointed anterior lobes; anterodorsal margin with wide, hyperbolic incision in dorsal view, mesal margins with triangular process corresponding to anterad oriented anterodorsal process seen in lateral view. In ventral view segment IX with nearly parallel lateral margins, concave anterior margin and weakly concave posterior margin; posterior margin without central projection. Tergum X tapering and curved ventrad along its length in lateral view ( Fig. 124 ); dorsal margin convex, ventral margin nearly straight, except concave near apex. In dorsal view tergum X divided basally into 2 lateral, nearly straight and parallel branches ( Fig. 125 ); each lateral branch with minute tooth at mid-length on mesal margin; large, laterad oriented process at mid-length of lateral margin, with apical sensilla; narrow, triangular process situated on lateral margin near apex oriented strictly laterad. Cerci short, slender and club-shaped in lateral view, wart-like in dorsal view; located dorsally on segment IX, opposite to anterodorsal process of segment IX; covered by long setae. Gonopods slightly shorter than segment IX,unbranched; anterodorsal margin concave, smooth; basal 1/2 broad, with strongly convex posterior margin due to presence of erect setal bases; distal 1/2 narrow, nearly straight, with smooth posterior margin; gonopods nearly reaching as far posteriorly as tergum X. In ventral view, gonopods forming broad plate, each with weakly concave mesal margin; each posterior margin undulating along its length. Phallic apparatus about 1.5x longer than rest of genitalia, weakly curved ventrad along its length; phallotheca, in lateral view nearly 2x thicker than posterior part, with anterior part about 2x thicker than posterior part; apicoventral spine forming horizontal plate below membranous endotheca, in ventral view nearly parallel-sided along its length before pointed apex; phallotremal sclerite not observed; 2 nearly black, short, posterad directed, sub-equally large endothecal spines present, slightly shorter than diameter of narrowest part of phallotheca.

Female. Unknown.

Holotype male: VITI LEVU: Vuda Prov., Koroyanitu Pk., 1 km E Abaca Vlg., Savuione Trail, Malaise trap, 11–19.iii.2003, 17.667°S, 177.55°E, 800 m, leg. M. Irwin, E. Schlinger & M. Tokota’a [loc#03] [ FNIC].

Paratypes: Same data as holotype [loc#03] [22 males in BPBM, 12 males in NHRS].

Etymology: Kimminsi , named after D. E. Kimmins for his valuable contribution in the taxonomy of Australian, Oriental and Afrotropical Chimarra .

Distribution: Viti Levu.

Figures

FIGURES 22 – 29. Right wings, dorsal views. 22 — C. cartwrighti, new species, holotype; 23 — C. kimminsi, new species, holotype; 24 — C. kadavuensis, new species, holotype; 25 — C. lavensis, new species, holotype; 26 — C. devoensis, new species, holotype; 27 — C. helomyzida, new species, holotype; 28 — C. tipulida, new species, holotype; 29 — C. psychodida, new species, holotype.

FIGURES 124 – 128. Chimarra kimminsi, new species, holotype. 124 — genitalia, left lateral view; 125 — genitalia, dorsal view; 126 — genitalia, ventral view; 127 — phallic apparatus, left lateral view; 128 — phallic apparatus, ventral view.