Trachelophora maculosa Aurivillius 1923

Trachelophora maculosa Aurivillius, 1923 Fig. 3 A – K Trachelophora maculosa Aurivillius, 1923: 465 (original description, type locality: Kuching, Borneo); Breuning 1950: 321 (key), 351; Makihara and Noerdjito 2004: 51; Heffern 2005: 28. Type material examined. Holotype: ♂ (NHRS), Kuching Aug. 11 1899 (handwritten and printed with black ink on a rectangular white label) / 9469 E 92 + (printed with black ink on a rectangular blue label) / Type (printed with black ink on a rectangular white label) / NHRS - SLJB 000000601 (printed with black ink on a rectangular white label) (Fig. 3 A – E). Additional material examined. 1 ♂, MZB (MZB.COLE.144259, Fig. 3 F, G); 1 ♀, MZB (MZB.COLE.144260, Fig. 3 H, I); 1 ♂, NMB (Fig. 3 J, K). Diagnosis. (holotype, based on quality photographs and modified from the original description) Male relatively medium size, length 20.8 mm, width 6.0 mm. The combination of a distinct median frontal groove extending from the frons onto the vertex, the pronotum bearing a strong lateral spine and an anterolateral tubercle, diffuse pronotal pubescence forming a narrow median stripe and paired longitudinal patches, and elytra with irregular pale tomentose maculae arranged as paired humeral, median, and large subapical patches, never forming continuous longitudinal vittae. Antennae ~ 2 × the elytral length (male); femora clavate; ventrite V subtriangular with dense apical pubescence. Male genitalia. Tegmen (Fig. 9 G – J) elongate, slightly shorter than the median lobe. Parameres symmetrical, moderately broad basally, gradually narrowing toward the apex, separated by a deep, narrow median emargination extending to ~ 1 / 3 of their length; apices broadly rounded, each densely clothed with numerous short setae. Phallobase elongate, distinctly longer than the parameres. Median lobe (Fig. 9 K, L) elongate and slender, widest near the basal third, gradually tapering toward the apex in both dorsal and ventral views; with a small transverse sclerotized plate in the apical third; apex narrowly rounded in dorsal view and evenly rounded in ventral view. In lateral view, median lobe distinctly arcuate ventrad, with the apical portion strongly recurved and acute. Median struts long and slender, extending to ~ 1 / 2 the length of the median lobe. Remarks. The combination of the pronotum bearing both lateral spines and anterolateral tubercles, diffuse pronotal pubescent patches, and the characteristic arrangement of large tomentose elytral maculae readily separates this species from all congeners. Distribution. This species is currently known only from Borneo (Aurivillius 1923; Breuning 1950; Makihara and Noerdjito 2004; Heffern 2005).