Omophron oberthueri, GESTRO, 1892

Valainis, Uldis, 2010, A review of genus Omophron Latreille, 1802 (Coleoptera: Carabidae) Palearctic fauna and distribution, Baltic Journal of Coleopterology 10 (2), pp. 105-128 : 114-115

OMOPHRON OBERTHUERI GESTRO, 1892

Description: lenght: 3.5 – 4.25; width: 2.4 – 2.6 mm. Colour dark metallic green, shiny, underside piceous; labrum, palpi, antennae, marginal channel of prothorax, a pattern on elytra, and legs testaceous. The marginal channel of the elytra is testaceous throughout (rarely interrupted at middle).

Head moderately convex, closely punctate, more sparsely on middle of front, clypeus bisetose, a few punctures at its base, suture rounded, mentum uneven and pitted, lobes rounded, epilobes projecting.

Prothorax very wide, moderately convex, trans-versely depressed in front of base, moderately and rather closely punctate, sides gently and evenly rounded, with fairly wide, smooth, refiexed margin, hind angles right, median line obsolete.

Elytra oval, convex, base unbordered, sides hardly widened behind shoulder, with refiexed border a little narrower than that of prothorax; 15-striate-punctate, intervals quite flat and very smooth, no microsculpture. The elytral pattern is as presented in Fig. 2.5.

Comparisons: The pattern on the elytra of O. oberthueri Gestro is similar to that of O. piceopictum Wrase , but O. oberthueri is much smaller in size, it has denser and coarser puncturation on the pronotum and deeper elytral striae.

Distribution: PAR: IN: UP, UTH; SM; ORR: IN: WB

Processed material: India: Pedong, Darjeeling, 11.1935 (4 Males, 19 Females, Durel leg.) (BMNH); Sikkim, Gopaldhara, (11 Male, 31 Female, Stevens leg.) (BMNH); Gopaldhara, Darjiling, 3440-4720 ft., 04.10.1919 (1 Male, 1 Female, Stevens leg.), 06.10.1919 (1 Male, 2 Females, Stevens leg.), 03.11.1919 (1 Female, Stevens leg.), 07.11.1919 (18 Males, 40 Females, Stevens leg.), 08.11.1919 (14 Males, 54 Females, Stevens leg.), 10.11.1919 (33 Males, 58 Females, Stevens leg.) (BMNH); Sikkim, Dikchu, Tista Vall., 14.03.1920 (2 Females, Stevens leg.) (BMNH); Uttarkhand, Sarju Vall., Kumaon, 5000 ft. (5 Males, 8 Females, Champion leg.) (BMNH); Uttarkhand, W. Almora, Kumaon, (52 Males, 121 Female, Champion leg.) (BMNH); Uttarkhand, W. Almora, Kumaon, 03.1918 (1 Female, Champion leg.) (BMNH); Uttarkhand, West Almora, Kumaon (1) (ZIN); Sikkim, 200m., Valley at Tista Bridge, 8.- 15.12.1934 (1 Male, 1 Female) (BMNH); Brit. Bhutan, Pedong (2 Females) (BMNH); Namsoo , Darjeeling , 2,100 ft., 11.1920 (2 Females, Stevens leg.) (BMNH); Sikkim, Namsk , 11.1920 (1 Male, 3 Females, Stevens leg.) (BMNH); West Batho (c), Uttarkhand , Kumaon , 05.1920 (1 Male, 3 Females, Champion leg.) (BMNH); West Bengal, Darjeeling district , Pedong , (1, Desgodins leg.) (extype) (ETHZ); West Bengal, Hasimara , Barodabri , 05.1961 (1, Korovin leg.) (ZIN); Darjeeling district , Pedong (27) (ETHZ); Sikkim, Gopaldhara, H. Stevens leg. (2); Sikkim (1) (ETHZ) ;

Type locality: Pedong , Sikkim (holotype is deposited in Genoa Natural history Civic Museum) .

References: Andrewes, 1926; Andrewes, 1929; Bänninger, 1918; Gestro, 1892; Hurka, 2003