Tetraserica vari, Fabrizi, Silvia, Dalstein, Vivian & Ahrens, Dirk, 2019

Fabrizi, Silvia, Dalstein, Vivian & Ahrens, Dirk, 2019, A monograph on the genus Tetraserica from the Indochinese region (Coleoptera, Scarabaeidae, Sericini), ZooKeys 837, pp. 1-155 : 50-52

Tetraserica vari sp. n. Figures 20, 53

Type material examined.

Holotype: ♂ "Coll. I. R. Sc. N. B. Cambodia, Pursat Prov., Phnom Samkos W.S., forest edge, light trap 14.iv.2005 Leg. K. Smets & I. Var" (ISNB). Paratypes: 1 ♂ "Coll. I. R. Sc. N. B., Cambodia, Pursat Prov., Phnom Samkos, W.S. Pramaoy, edge forest, Light trapping/ 16-XI-2005 Leg. K. Smets & I. Var" (ISNB), 1 ♂ "Coll. I. R. Sc. N. B. Cambodia Kirirom N. P. Light Trap Pine forest, 21 IV 2005 Leg. Smets & I. Var" (ISNB), 2 ♂♂ "Coll. I. R. Sc. N. B., Cambodia, Pursat Prov., Phnom Samkos Wildlife Pramaoy 16.XI.2005 forest edge, Light trapping, Leg. K. Smets & I. Var" (ISNB), 3 ♂♂ "Coll. I. R. Sc. N. B., Cambodia, Pursat prov. Phnom Samkos W.S., forest edge, light trap 14.iv.2005 Leg. K. Smets & I. Var" (ISNB, ZFMK), 1 ♂ "Coll. I. R. Sc. N. B. Cambodia (Pursat Prov.) Phnom Samkos wild life Sanctuary, light trap Forest Edge & Primary 14-IV-2005 Leg. K. Smets & I. Var" (ZFMK), 1 ♂ "Coll. I. R. Sc. N. B. Cambodia, Pursat Prov Phnom Samkos W.S., Pramaoy Forest Edge 15-IV-2005, Light Trap Leg. K. Smets & I. Var" (ISNB), 1 ♂ "E Thailand, 5-13.5. Chanthaburi Dist. Khao Soi Dao, 1998, M. Knížek lgt./ coll. P. Pacholátko” (CPPB), 1 ♂ "Cambodia, Cardamom Mts., near Pramuoy village, 12°16'N, 103°01'E, 270 m, Dry Dipterocarp and Gallery Forest, 24-25.ii.2000, leg. M. Nuss/ Staatl. Museum für Tierkunde Dresden/ 118 Sericini Asia spec." (SMTD).

Description.

Length of body: 10.4 mm; length of elytra: 8 mm; maximum width: 6.6 mm. Surface of labroclypeus and disc of frons glabrous. Smooth area anterior to eye twice as wide as long. Eyes moderately large, ratio of diameter/interocular width: 0.66. Ratio of length of metepisternum/metacoxa: 1/1.69. Metatibia short and wide, ratio width/length: 1/2.62; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 20 A–C. Habitus: Fig. 20D.

Female unknown.

Variation.

Length of body: 10.4-11.2 mm; length of elytra: 8.0-8.1 mm; maximum width: 6.6-6.9 mm.

Diagnosis.

Tetraserica vari sp. n. differs from all other Tetraserica species in having a long median phallobasal lamina, a basally bent left paramere, and the median phallobasal lamina widened and sharply truncated at its apex.

Etymology.

The new species is named after one of its collectors, I Var (noun in genitive singular).