Goera ogasawaraensis Kuranishi 2005

Nozaki, Takao & Tanida, Kazumi, 2006, The genus Goera Stephens (Trichoptera: Goeridae) in Japan, Zootaxa 1339, pp. 1-29 : 5

Goera ogasawaraensis Kuranishi 2005

Fig. 2

Goera ogasawaraensis: Satake et al. 2005 , 378–379, male, female. Goera sp.: Tomokuni and Sato 1978, 117–118, larva, case.

Adult. Small yellowish brown species. General morphology is very similar to G. japonica , but length of forewing is 5.5–6.5 mm. Distal segment of male maxillary palpi oval, membranous and elastic, extended apical lobe short. Male abdominal sternite VI with 8–10 long spines in comb-like arrangement. Female abdominal sternite VI and male abdominal sternite V without tiny spine.

Male genitalia. Similar to G. japonica except for the following characters. Ventromesal lobe of segment IX not so slender as in G. japonica , about 3 times as long as wide in ventral aspect. Ventrolateral processes of tergum X undivided, apices slightly curved laterally in dorsal aspect. Phallus scoop-like.

Female genitalia. Similar to G. japonica , but tergum X blunt at apex and directed posteroventrally. Spermathecal sclerite not so slender as in G. japonica .

Larva. Tomokuni and Sato (1978) described the larval stage for the first time.

Specimens examined. Ogasawara: Holotype and paratypes, 4 males and 2 females, Upper stream of Shigure Barrage, Chichi-jima, Bonin Island, 19.vi.1991, S. Miyano (CBM).

Distribution. Japan (Ogasawara).

Japanese name. Ogasawara-ningyo-tobikera.

Figures

FIGURES 1 – 2. 1, Goera japonica. Male sternite VI: a, b, ventral view. Male genitalia: c, lateral view; d, dorsal view; e, ventral view; f, phallus, lateral view; g, phallus, dorsal view. Female genitalia: h, lateral view; i, dorsal view; j, ventral view. 2, Goera ogasawaraensis. Male sternite VI: a, ventral view. Male genitalia: b, lateral view; c, dorsal view; d, ventral view; e, phallus, dorsolateral view. Female genitalia: f, lateral view; g, ventral view; h, dorsal view.