Trichadenotecnum cornutum

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 : 28-29

Trichadenotecnum cornutum n.sp.

Figs. 40–44 Material examined. HOLOTYPE ♂, Sumatra: SE, Way Kambas National Park , Way Kanan , 5°04'S 105°42'E, mixed secondary forest , 20 m, 30.VI.1997, ESK ( ZMB) .

Female unknown.

Male

Colouration (c. 2 years in alcohol). Head pale, epicranial suture dark brown; uniform brown band each side extending to posterior margin of vertex, and mesial to each orbit. Eyes black. Ocelli pale, black centripetally. Frons with lateral dark brown mark contiguous with ventral margin of each eye. Antenna light brown. Gena dark brown anteriorly. Epistomal suture pale. Postclypeus with dark brown striation merging medially, pale lateral area. Labrum pale. Thorax pale with brown patches; pleura with transverse dark brown band ventrally. Fore wing with brown clouds as in Fig. 40. Hind wing (Fig. 41) suffused brown. Legs pale except apical band on femur, tibia and tarsal segments dark brown.

Morphology. IO:D 1.33. Fore wing venation as in Fig. 40. Hypandrium (Fig. 42, damaged) asymmetrical: two asymmetrical lateroapical projections, the left one a long spine and the right one serrated; anteriorly to the serrated projection a pair of symmetrical large spikes flanking curved tongue. Phallosome (Fig. 43) an open frame. Paraproct (Fig. 44) with field of about 11 trichobothria.

Dimensions. B 1.5; FW 1.35; HW 1.71; F 0.49; T 0.96; t 1 0.27; t 2 0.09; t 1 /t 2 3; Ct 19 (t 1) 2 (t 2); f 1 0.56; f 2 0.46; f 1 /f 2 1.28.

Remarks. Trichadenotecnum cornutum has wing markings conforming to those of typical representatives of Trichadenotecnum. In general form of the hypandrium, this species differs from any previously described species. The open curved phallic frame of this species most closely resembles those of T. apertum Thornton from Hong Kong and T. galihi Endang et al. from East Java. The hypandria of T. apertum and T. galihi, however, lack a pair of subapical symmetrical spines.