Chimarra schlingeri 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 schlingeri

description: Chimarra schlingeri, new species
Figs. 9, 50–54
Chimarra schlingeri has gonopods each with a small but distinct dorsal branch, as in C. signata, C. karoyanitensis, C. macuatensis, C. veisarensis, C. nathani, C. levuensis, and C. braueri. Among these, a large transparent spot located centrally in the forewings, as in C. schlingeri, is also present in C. macuatensis, C. signata, C. nathani, C. braueri, and C. vitiensis. It is easily distinguished from all those species by having a segment IX that is longer than high in lateral view; from C. veisarensis and C. levuensis by the presence of a large transparent spot centrally in the forewings; from C. levuensis, C. nathani, and C. veisarensis by the presence of a strongly hooked dorsal branch of each gonopod; and from C. braueri by the absence of a long, tongue-shaped process immediately below the dorsal branches of the gonopods.
Male. Body dark pale yellowish-brown, dorsal part of meso and metathorax only slightly darker than rest of body. Large dark area mainly between lateral ocelli. Foreleg anterior claw as long as foreleg spur.
Wings (Fig. 9). Forewings 6.2 mm (n=1), brown; large pale, hyaline, nearly circular spot occupying central part of wing, including median cell and basal third of discoidal cell. Forewings broad, ratio of length to breadth 3.3; R1 nearly straight before crossvein r; radial sector strongly produced anterad immediately before discoidal cell; discoidal cell originating at mid-length of wing, about 2x longer than wide; median cell as long as discoidal cell; crossvein r originating from R2+3, immediately before 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 II; Cu2 ending in wing margin close to A. Hind wings 5.2 mm (n=1), brown, with large, nearly circular pale hyaline spot centrally on anterior 1/2 of wings, occupying basal 1/2 of discoidal cell; broad, ratio of length to breadth 2.9; margin slightly incurved at arculus, where Cu1 and Cu2 fused with margin; fork III as long as discoidal cell and 1/8th as long as wing; fork V about as long as fork I; 1A+2A as long as 1A.
Male genitalia (Figs. 50–54). Segment IX slightly longer than high; anterodorsal margins strongly concave in lateral view; ventral margins slightly convex; each posterior margin produced posterad into large, rounded lobe below each cercus; ventral side of posterior 1/2 of segment IX covered by setae (Fig. 52). In dorsal view with pointed anterior lobes; anterodorsal margin with wide, shallow incision in dorsal view. In ventral view segment IX with shallowly concave anterior and posterior margins; posterior margin without central projection. Tergum X simple; tapering apically in lateral view (Fig. 50); distal 1/2 divided into 2 parallel branches in dorsal and ventral view (Fig. 52); each distal branch nearly parallel-sided in dorsal and ventral view, apically nearly truncate with slightly posterad producing apicomesal corner and laterad producing apicolateral corner; pair of sensillae located at basal 1/ 2 of ventral face of each branch. Cerci large, located dorsally on segment IX and oriented slightly dorsad in lateral view and slightly laterad in dorsal view; covered by long setae. Gonopods shorter than segment IX, nearly quadrangular in lateral view; anterodorsal margin concave; ventral margin nearly straight, undulating; dorsal branch forming slender, ventral hook in lateral view, and broad plate with small, thorn-shaped apex in dorsal view; ventral branch in ventral view fused medially outside of segment IX; each mesal margin with 3 conical processes orienting mesad, the apical process with irregular margin. Phallic apparatus about 1.5x longer than rest of genitalia; phallotheca, in lateral and ventral view, with anterior part about twice as thick as posterior part; apicoventral spine absent; phallotremal sclerite not observed; pair of brown, posterad directed, nearly equal endothecal spines present, about as long as diameter of narrow part of phallotheca.
Female. Unknown.
Holotype male: VITI LEVU: Vuda Prov., Koroyanitu N.N.P. Kokabula Trail, Malaise trap, 26.x–5.xi.2002, 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].
Paratypes: Same data, except 12–19.x. 2002, 450 m [loc#02] — 4 males [NHRS]. Same data, except 17.667°S, 177.55°E, 26.xi–3.xii.2002, leg. E. Schlinger & M. Tokota’a [loc#02] — 2 males [BPBM]. Same data, except 2–10.vi.2003, leg. M. Tokota’a [loc#02] — 1 male [BPBM]. Vuda Prov., Koroyanitu Pk., 1 km E Abaca Vlg., Malaise trap 1, 22.iv–5.v.2003, 17.667°S, 177.55°E, 800 m, leg. E. Schlinger & M. Tokota’a [loc#03] — 3 males [BPBM]. Same data, except 19–26.xi.2002 [loc#03] — 1 male [FNIC]. Same data, except Savuione Trail, 17°40’S, 177°33’E [17.3333°S, 177.55°E], 26.x–5.xi.2002 [loc#03] — 1 male [FNIC]. TAVEUNI: Cakaudrove Prov., 3.2 km NW Lavena Vlg., Mt. Koronibuabua, Malaise trap 5, 21.iv–6.v.2004, 16.856°S, 179.889°W, 229 m, E. Schlinger & M. Tokota’a [loc#35] — 1 male [NHRS].
Etymology: Schlingeri, named after Dr. E. Schlinger, one of the collectors of the holotype.
Distribution: Viti Levu and Taveuni.
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 19-20, DOI: 10.5281/zenodo.210736