Polygraphus setosus Schedl, 1979

Buhroo, Abdul Ahad, 2024, A taxonomic monograph of subfamily Scolytinae (Coleoptera: Curculionidae) in the Western Himalaya, Zootaxa 5533 (1), pp. 1-82 : 50-51

39. Polygraphus setosus Schedl, 1979

( Figure 50 )

This species is diagnosed by the following morphological characters: ♀ frons transversely depressed, with indistinct fine punctures and short fine hairs, longer and denser on epistomal margin, a pair of median transversely set tubercles at the upper level of eyes; pronotum 1.63× wider than long with a distinct, median, longitudinal, impunctate line upto basal two-third, anterior-third with a transverse coller-like depression; surface shiny, convex with fine punctures, each puncture with recumbent fine hair; basal margin with a sharp transverse ridge; scutellum indistinct; elytra 1.57× as long as its width, 2.56× as long as pronotum, lateral sides subparallel, converging into a rounded apex; anterior margin distinctly asperate throughout, surface convex and roughened with some granules; discal striae 1, 2 and 3 with some granules and those on others indistinct but with roughened surface; interstria 1 distinctly marked up to apex, interstria 2 distinct upto declivity and rest feebly marked; interstrial surface with a row of widely spaced long, erect, scale-like setae and ground cover of very short blunt, feathery scales and fine hairs; declivity distinct on posterior third, surface weakly convex, but sharply declivous with distinct scale-like setae; interstriae 1, 2 and 3 with some granules; striae 1, 2 and 3 somehow prominent, rest indistinct; head and pronotum black, elytra dark-brown; body length: 2.28 mm, 2.32× as long as wide.

Male frons shallowly concave with sparse, hairs becoming longer on upper, lateral and epistomal margins and without a pair of tubercles on frons; body lenth: 2.23–2.30 mm.

Material examined: New records: India: 2 ♂ ′s, 1 ♀. Himachal Pradesh, Dalhousie, Banikhet (32° 32.939 N, 075° 57.027′ E, 5490 ft.), A.A. Buhroo, 27.09.2018 ( KUIC) .

Distribution: India: Himachal Pradesh, Punjab, Uttarakhand

Hosts: Pinus roxburghii ( Pinaceae )

Figures

FIGURE 50. Polygraphus setosus. Female: dorsal view A, lateral view B; male: lateral view C.