Trichadenotecnum cinnamonum

Trichadenotecnum cinnamonum View in CoL n.sp.

Figs. 84–93

Material examined. HOLOTYPE ♂, Sumatra: West , Kerinci Seblat National Park , East slope of Mt Kerinci , 1°40'S 101°13'E, cinnamon, 1700 m, 20.VI.1997, ESK ( ZMB). GoogleMaps PARATYPE ♀, same data as holotype ( ZMB) GoogleMaps .

Male

Colouration (c. 4 years in alcohol). Head ground colour buff with the following dark brown: epicranial suture; mark each side of epicranial suture to posterior margin of vertex, and mesial to each orbit; median V-shaped mark on frons, border of antennal socket; epistomal suture; postclypeal striations; basal ¼ of anteclypeus; labrum; maxillary palp. Eyes greyish black. Ocelli pale black centripetally. Antenna light brown, scape and pedicel dark brown and pale between joints. Thorax: dorsal lobes dark brown, buff along sutures; lateral lobes buff dorsally, dark brown ventrally. Fore wing as in Fig. 84, with pattern of scattered small dark brown markings. Hind wing (Fig. 85) suffused brown. Legs dark brown, pale between joints.

Morphology. IO:D 1.0. Wing venation as in Figs. 84, 85. Hypandrium (Fig. 86) asymmetrical: large lateroapical spinous lobe on one side; scattered long setae on the midline; field of small spines in subapical region. Phallosome (Fig. 87) a closed frame with bifid rugose distal projection. Epiproct (Fig. 88) with strong lateral prongs and basal corrugated bow-like area. Paraproct (Fig. 88) with broad apical spine, a field of small spines contiguous with field of about 26 trichobothria.

Dimensions. B 2.9; FW 3.65; HW 2.8; F 0.6; T 1.39; t 1 0.42; t 2 0.13; t 1 /t 2 3.23; Ct 15 (t 1) 2 (t 2); f 1 0.75; f 2 0.69; f 1 /f 2 1.08.

Female

Colouration (c. 4 years in alcohol). As male except whole pleura dark brown, buff along sutures; lateral to eye Vshaped mark on frons as two narrow stripes and narrow brown band from median ocellus toward ventral region of eyes. Fore wing as in Fig. 89. Hind wing as in Fig. 90.

Morphology. IO:D 2.2. Fore wing venation as in Fig. 89. Subgenital plate (Fig. 91): posterior lobe blunt apically with apical row of long setae and field of short setae around midline of lobe; main plate with broad lateral sclerotization. Gonapophyses (Fig. 92): ventral valve elongate, pointed apically; dorsal valve with long apical acuminate point; outer valve with fine teeth on outer margin of posterior lobe. Epiproct (Fig. 93). Paraproct (Fig. 93) with field of about 24 trichobothria.

Dimensions. B 2.5; FW 3.53; HW 2.67; F 0.65; T 1.25; t 1 0.32; t 2 0.14; t 1 /t 2 2.28; Ct 19 (t 1) 3 (t 2); f 1 0.57; f 2 0.55; f 1 /f 2 1.04.

Remarks. Trichadenotecnum cinnamonum has a Loensia - type wing pattern. The phallosome resembles that of T. godavarense New from Nepal in having a bifid apical tine, but the phallosome of T. godavarense lacks the lateral prongs. Furthermore, T. godavarense has a bifid hypandrial tongue, absent in T. cinnamonum. In T. cinnamonum the epiproct has a basal corrugated bow-like area on the epiproct and a field of spines contiguous to the paraproct trichobothrial field, whereas in T. godavarense these characters are absent. In general, the subgenital plate is similar to that of T. godavarense, but differs slightly in that the anterior sclerotized area of T. godavarense has two pigmented connections between stems of the anterolateral sclerotized area and the sclerotized area of the apical lobe, whereas in T. cinnamonum these are absent. The ventral valve of T. godavarense is also somewhat shorter than that of T. cinnamonum.