Therates pearsoni, 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 : 25-26

21. Therates pearsoni new species

( Fig. 153 )

Type depository. Holotype male in NHMB, paratypes in JWCG and NHMB.

Type status. Holotype male! Type labels: “ VIETNAM-N, Quang binh prov., 1 km N of Cha Lo, 400 m, Vietnam-Laos border area , 17°41’22"N 105°45’45"E, L. Dembický leg., 11.-24.iv.2010 " [printed, white]; “HOLOTYPE Therates pearsoni n. sp., ded. J. Wiesner 2013” [printed, red] . Paratypes! Type labels: “VIETNAM-N, Quang binh prov., 1 km N of Cha Lo, 400 m, Vietnam-Laos border area, 17°41’22"N 105°45’45"E, L. Dembický leg., 11.-24.iv.2010 " [printed, white]; “ PARATYPE Therates pearsoni n. sp., ded. J. Wiesner 2013” [printed, red] .

Diagnosis. Distinguished by the combination of elytra with broad basal dot and male with two enlarged distal antennomeres.

Etymology. This new species is dedicated to David L. Pearson in deep gratitude for his continuous help.

Description. Size: Total length (without labrum) 8.2 mm- 9.2 mm, (mean= 8.6 mm, n=6). Head: Shining greenish black. Mandibles yellowish, brownish distally in female, teeth brownish marginally. Labrum (male Fig. 159 , female Fig. 160 ) as wide as long, yellowish, with six apical teeth and one lateral tooth. Labial and maxillary palpi yellowish. Antennae extending posteriorally behind 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, the other antennal segments brownish, distal two segments blackish, enlarged in the males. Clypeus glabrous. Frons smooth, with a transverse furrow and some striae 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, nearly absent in apical half ( Fig. 154 ). Apex with angular lateral and sutural tooth, recurved between, transparent brownish, yellowish towards the apex, suture yellowish. Maculation yellow, composed of a humeral lunule, a basal dot and a central dot, which is acutely angled inwards toward the suture ( Figs. 141-143 ). Ventral aspect: Venter black. Legs brownish, tibiae and tarsal joints darkened slightly at apex. Aedeagus: ( Fig. 158 ) curved, with bent and knobbed tip distally, total length 2.1 mm.

Distribution. Vietnam (Quang binh).

Figures

Figures 147-160. Therates. All scales = 1 mm. 147-152. similis Probst and Wiesner, 1994. 147) Habitus, holotype male. 148) Punctures of elytra, holotype male. 149) Maculae of elytra, holotype male. 150) Left lateral view of aedeagus, holotype. 151-152. Labra. 151) Holotype male. 152) Paratype female. 153-160. pearsoni new species. 153) Habitus, paratype male. 154) Punctures of elytra, paratype male. 155-157. Maculae of elytrae. 155) Paratype male. 156) Paratype female. 157) Holotype male. 158) Left lateral view of aedeagus, paratype. 159-160. Labri. 159) Paratype male. 160) Paratype female.

Figures 132-146. Therates. All scales = 1 mm. 132-137. dembickyi Sawada and Wiesner, 2002. 132) Habitus, holotype male. 133) Punctures of elytra, holotype male. 134-135 Maculae of elytra. 134) Holotype male. 135) Paratype female. 136) Left lateral view of aedeagus, holotype. 137-138. Labra. 137) Holotype male. 138) Paratype female. 139-146. kraatzi Horn, 1900. 139) Habitus, female from Malaysia (BMNH). 140) Punctures of elytra, holotype male. 141-143. Maculae of elytra. 141) Holotype male. 142) Female from Malaysia (BMNH). 143) Female from Tak (BMNH). 144) Left lateral view of aedeagus, Holotype. 145-146..Labra 145) Female from Malaysia (BMNH). 146) Holotype male.