Pseudoleptonema quinquefasciatum Martynov, 1935

Uy, Christine Jewel C., Malicky, Hans & Bae, Yeon Jae, 2018, Review of the filter-feeding caddisfly subfamily Macronematinae (Trichoptera: Hydropsychidae) in tropical Southeast Asia, Raffles Bulletin of Zoology 66, pp. 664-703 : 696

Pseudoleptonema quinquefasciatum Martynov, 1935

( Figs. 251–256 )

Macronema quinquefasciatum Martynov, 1935: 190 [Holotype male; India; NZSI]; Malicky, 1998b: 779 (redescription, transferred from genus Macronema ): Hoang et al., 2005: 171 (redescription).

Diagnosis. Male. Antennae 20 mm in length. Antennal flagellum dark brown. Forewing 10 mm and hind wing 5 mm in length. Mesoscutum and mesoscutellum without evident markings. Tibial spurs 0.4.4.

Male genitalia. Inferior appendages two-segmented, harpago long, about as long as coxopodite ( Fig. 252 ). In dorsal view, phallus with two lobular structures widely separated making middle tongue like structure very evident ( Fig. 255 ). Length of tongue like structure longer than phallus apex. In lateral view, phallus with circular apex making tongue like segment appear originating from base pointing apically ( Fig. 254 ). Segment X bifid with curved apex ( Fig. 253 ).

Female. Antennae 12 mm in length. Antennal flagellum same colouration as male. Forewing 8 mm and hind wing 6 mm in length. Mesoscutum and mesoscutellum same as male. Tibial spurs 0.4.4.

Material examined. Thailand: 40 males, 47 females, Mae Wang Province , Mae Wang stream, coll. C.J. Uy, 13 May 2015 ( UPLBMNH) .

Distribution. India, Nepal, Laos, Thailand, Vietnam.

Remarks. This species was well redescribed and illustrated by Malicky (1998b) and Hoang et al. (2005). The wings ( Fig. 251 ) were photographed, genitalia ( Figs. 252–255 ) and dorsal head ( Fig. 256 ) were redrawn.

Figures

Figs. 235–257. Pseudoleptonema erawan. 235, right forewing; Male genitalia: 236, lateral; 237, segment X dorsal; 238, phallus lateral; 239, phallus tip. Pseudoleptonema sinuatum. 240, right fore- and hind wing; Male genitalia: 241, lateral; 242, segment X dorsal; 243, Phallus lateral; 244, Phallus tip. Pseudoleptonema supalak. 245, right fore- and hind wing; Male genitalia: 246, lateral; 247, segment X dorsal; 248, phallus lateral; 249, phallus tip. Pseudoleptonema quinquefasciatum. 251, right fore- and hind wing; Male genitalia: 252, lateral; 253, segment X dorsal; 254, phallus lateral; 255, phallus tip; 256, Head dorsal. Pseudoleptonema tansoongnerni. 257, right forewing. Scale: 235, 240, 245, 251, 257 = 2 mm; 236–239, 241–244, 246–249, 252–255 = 0.02 mm; 256 = 0.5 mm.