Diplectrona burha Schmid 1961
Creators: name: Nozaki, Takao
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydropsychidae
Diplectrona
Diplectrona burha

description: Diplectrona burha Schmid 1961
(Figs 2, 7)
Diplectrona burha Schmid 1961, 200–201, pl. 17, male; Malicky 2002, 1205–1206, 1218, 1233, male; Ito & Nozaki 2018, 547–548, male, female.
Diagnosis. The male of this species is similar to that of D. kibuneana in the genitalic morphology but is distinguishable from that of the latter by the characters given in the diagnosis for that species.
Adult (Figs 2A–2G). Only one male specimen available in this study. General appearance similar to D. kibuneana, but white markings more distinct (Fig. 2A). On the head (Fig. 2B), frontal setal wart (f.s.w.) small oval; each anterior setal wart (a.s.w.) divided into 2 warts, anterior one [= vertexal lateroantennal complex setal wart of Sun (2017)] small, long oval, posterior one [= vertexal lateral compact setal wart of Sun (2017)] irregularly triangular; each posterior setal wart (p.s.w.) large oval. Forewings each 7.0 mm long, venation similar to that of D. kibuneana (Fig. 1C). Pair of lateral filaments (l.f.) of abdominal segment V (V) long, each about 1.3 times as long as segment V (Fig. 2C). Internal gland of segment V small, internal gland of segment VIII (VIII) absent (Fig. 2C).
Male genitalia (Figs 2D–2G). Segment IX (IX) triangular in lateral aspect (Fig. 2D). Segment X (X) with pair of mesocaudal lobes (m.c.l.), each long oval in lateral and dorsal aspects (Figs 2D, 2E), with stout clavate setae; pair of lateral lobes (l.l) projecting outward in dorsal aspect (Fig. 2E), with spine-like posterodorsal projection, ventral margin strongly sclerotized, with short setae; pair of preanal appendages large oval in lateral aspect, weakly bulging, setose. Inferior appendages (i.a.) each with basal segment long club-like, extending beyond apex of segment X (Fig. 2D); distal segment about 1/3 as long as basal segment, tapering to apex, curved mesad (Fig. 2E). Phallic apparatus narrow in middle in lateral aspect (Fig. 2F); with two pairs of endothecal processes (e.p.) apicodorsally, each ovate (Fig. 2G).
Immature stage. Unknown.
Specimens examined. Shikoku, Kochi: 1 male, Befu, Monobe-cho, Kami-shi, 27.vii.2003, M. Takai.
Distribution. Japan (Shikoku, Ryukyu islands), Pakistan, India, Nepal, Thailand, Vietnam, Taiwan.
Japanese name. Buruha-miyama-shima-tobikera.
Remarks. The single male specimen available in this study has many characteristics which agree with those of D. burha described or redescribed by Schmid (1961), Malicky (2002), and Ito & Nozaki (2018); for example, the length of the lateral filaments of abdominal segment V, the size of the internal glands of segment V, lack of internal glands of segment VIII, and the shape of the genitalia. The shape of the mesocaudal lobes and lateral lobes of the segment X are different from those of males collected from Ryukyu islands, southwestern Japan (Ito & Nozaki 2018), but similar to those illustrated in the original description (Schmid 1961, pl. 17, figs 7, 8). Schmid (1961) and Malicky (2002) reported variations of the male genitalia in this species.
description: Published as part of Nozaki, Takao, 2021, The genus Diplectrona Westwood (Trichoptera: Hydropsychidae) in the Japanese main islands, pp. 245-258 in Zootaxa 5082 (3) on pages 249-250, DOI: 10.11646/zootaxa.5082.3.3, http://zenodo.org/record/5788311