Therates sigridgeissleri, Wiesner, 2013

Wiesner, Jürgen, 2013, The chennelli group of the Genus Therates Latreille (Coleoptera: Cicindelidae) 114. Contribution towards the knowledge of Cicindelidae, Insecta Mundi 2013 (315), pp. 1-86 : 35-36

33. Therates sigridgeissleri new species

( Fig. 253 )

Type depository. Holotype male and paratype female in JWCG.

Type status. Holotype male! Type labels: “ LAOS-C., Bolikhamsai pr., Nakai Nam Theun Nat. Park , 7.- 16.v.2004, 500 ± 100 m, 18°18’N, 105°11’E, E. Jendek, O. Šauša leg.” [printed, yellow]; “HOLOTYPE Therates sigridgeissleri n. sp., ded. J. Wiesner 2013” [printed, red] . Paratype female! Type labels: “ LAOS-C., Bolikhamsai pr., Nakai Nam Theun Nat. Park , 7.-16.v.2004, 500 ± 100 m, 18°18’N, 105°11’E, E. Jendek, O. Šauša leg.” [printed, yellow] ; “ PARATYPE Therates sigridgeissleri n. sp., ded. J. Wiesner 2013” [printed, red] .

Diagnosis. Distinguished by the combination of elytral maculation with short humeral lunule and acutely angled forwards central dot, and the laterally brownish labrum.

Etymology. This new species is dedicated to Sigrid Geissler for her help in dire straits.

Description. Size: Total length (without labrum) 6.9 mm- 7.5 mm, (mean= 7.2 mm, n=2). Head: Shining greenish black. Mandibles yellowish, brownish distally in female, teeth brownish marginally. Labrum (male Fig. 258 , female Fig. 259 ) as wide as long, yellowish, lateral margins dark brown, with six apical teeth and one lateral tooth. Labial and maxillary palpi yellowish. Antennae lanceolate, extending posteriorally to elytral shoulders in female, somewhat longer in the male, scape with a single apical bristle, antennomeres 2 to 5 glabrous, antennomeres 6 to 11 finely and evenly pubescent; scape yellowish above, black on underside, all the other antennal segments blackish. Clypeus glabrous. Frons smooth, with a transverse furrow in the posterior part of the orbital plates. Thorax: Pronotum shining greenish black, as long as wide, barely more constricted in front than at back, transverse furrows strong, middle line and lateral lines nearly obsolete, middle line with several transverse short branches. Elytra: Shining black, with basal and apical humps, distinctly punctate in front, shallower in apical half ( Fig. 254 ).Apex with angular lateral and sutural tooth, recurved between. Maculation yellow, comrised composed of a humeral lunule, basal dot, central dot which is acutely angled outwards toward the front, and small apical dot at the suture ( Figs. 255, 256 ). Ventral aspect: Venter black. Legs yellowish, tibiae and tarsal joints darkened slightly at apex. Aedeagus: ( Fig. 257 ) straight, distal tip somewhat turned back, total length 1.8 mm.

Distribution. Laos (Borikhamsai).

Figures

Figures 253-268. Therates. All scales = 1 mm. 253-259. sigridgeissleri new species. 253) Habitus, holotype male. 254) Punctures of elytra, holotype male. 255-256. Maculae of elytra. 255) Holotype male. 256) Paratype female. 257) Left lateral view of aedeagus, holotype. 258-259. Labra. 258) Holotype male. 259) Paratype female. 260-268. jendeki Sawada and Wiesner, 1997. 260) Habitus, holotype male. 261) Punctures of elytra, holotype male. 262-265. Maculae of elytrae. 262) Holotype male. 263) Female from Meghalaya (JWGC). 264) Male from Meghalaya (JWGC). 265) Female from Meghalaya (JWGC). 266) Left lateral view of aedeagus, holotype. 267-268. Labri. 267) Holotype male. 268) Female from Meghalaya (JWGC).