Trichadenotecnum paradika

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 : 32

Trichadenotecnum paradika n.sp.

Figs. 61–65

Material examined. HOLOTYPE ♀, Sumatra: SE, Pematang , 3°50'S 105°01'E, 40 m, rubber plantation , 13.I.1996, ESK ( ZMB) .

Male unknown.

Female

Colouration (c. 4 years in alcohol). Head yellowish brown. Epicranial suture light brown. Light brown patches each side of epicranial suture and mesial to each orbit extend to posterior margin of vertex and mesial to each orbit. Ocelli pale black centripetally. Eyes black. Frons with median dark brown V-shaped mark, lateral to this a dark brown band curved towards each orbit. Antennal socket bordered with dark brown. Antennae pale. Epistomal suture pale medially, dark brown laterally. Postclypeal striae discernible. Anteclypeus pale. Labrum and maxillary palp brown. Thorax yellowish brown. Fore wing as in Fig. 61, with dense pattern of small dark markings. Hind wing (Fig. 62) suffused brown. Legs brownish except intersegmental areas pale.

Morphology. IO:D 1.25. Fore wing venation as in Fig. 61. Subgenital plate (Fig. 63) posterior lobe long, with rounded apex with long and short setae; main plate with posterolateral corrugated projection each side and scattered long setae anteriorly. Gonapophyses (Fig. 64): ventral valve elongate and pointed apically; dorsal valve broad with short apical spine; outer valve broad, short, with small conical posterior lobe, and long stout setae; a small group of very short setae near apex of valve anteriorly. Epiproct missing. Paraproct (Fig. 65) with field of about 16 trichobothria.

Dimensions. B 1.98; FW 2.22; HW 1.83; F 0.4; T 0.84; t 1 0.23; t 2 0.07; t 1 /t 2 3.28; Ct 15 (t 1) 2 (t 2); f 1 0.38; f 2 0.33; f 1 /f 2 1.15.

Remarks. This single specimen differs from previously described species in the form of the subgenital plate. This resembles those of T. laticornutum Endang et al., T. adika Endang et al. and T. waykananense n.sp. in having a lateral corrugated projection each side on the posterior margin, but the projection of T. paradika is shorter than in those three species. The fore wing pattern of T. laticornutum conforms to that typical of typical representatives of Trichadenotecnum. In fore wing pattern and some features of the gonapophyses T. paradika most closely resembles T. adika. In T. adika the dorsal gonapophysis valve has a long setose apical spine whereas in T. paradika it is short and has fewer setae. On the form of the subgenital plate, these species may constitute a distinct species group.