Trichadenotecnum sibolangitense

Sri Kentjonowati Endang, 2005, The Genus Trichadenotecnum (Insecta: Psocoptera: Psocidae) in Sumatra, Indonesia, With Description of Thirteen New Species, Records of the Australian Museum 57, pp. 15-38 : 27

Trichadenotecnum sibolangitense n.sp.

Figs. 29–33

Material examined. HOLOTYPE ♂, Sumatra: North , Sibolangit , 3°05'S 98°48'E, mixed protected primary forest , 500 m, 31.I.1997, ESK ( ZMB).

Female. Unknown.

Male

Colouration (c. 4 years in alcohol). Head generally buff. Epicranial suture dark brown with light brown confluent patches each side extending to posterior margin of vertex, and mesial to each orbit. Eyes black. Ocelli pale, black centripetally. Frons unmarked. Gena suffused brown. Antenna brown. Epistomal suture light brown. Postclypeus, anteclypeus and labrum brown. Maxillary palp brown darkened apically. Thorax: dorsal lobe buff; anterior of mesothoracic antedorsum brown; pleura brown with small buff patches. Fore wing (Fig. 29) with subapical brown clouds in apical cells and short basal transverse fascia. Legs dark brown, pale between joints.

Morphology. IO:D 1.2. Fore wing venation as in Fig. 29. Hypandrium (Fig. 30) highly asymmetrical: large curved serrated projection on one side apically and shorter, narrower spinous projection on the other; a median field of long setae. Phallosome (Fig. 31) an open frame, tips of open end overlapping distally. Epiproct (Fig. 32) with laterodistal spinous lobes. Paraproct (Fig. 32) with long apical spine and field of about 19 trichobothria. Clunium (Fig. 33) with long lateral spiculate spine.

Dimensions. B 2.0; FW 2.4; HW 1.57; F 0.42; T 0.78; t 1 0.23; t 2 0.08; t 1 /t 2 2.9; Ct 17 (t 1) 2 (t 2); f 1 0.45; f 2 0.4; f 1 /f 2 1.13.

Remarks. The pattern and venation of the fore wing suggest relationship to typical representatives of Trichadenotecnum. The hypandrium and the phallosome resemble those of T. alinguum (Endang et al., 2002) described from Central Java, but the epiproct is substantially different. The male epiproct of both species is of unusual form; that of T. alinguum has a central peg and three prongs apically, whereas in T. sibolangitense the epiproct has two laterodistal spinous lobes