Polygraphus longifolia Stebbing, 1903

Buhroo, Abdul Ahad, 2024, A taxonomic monograph of subfamily Scolytinae (Coleoptera: Curculionidae) in the Western Himalaya, Zootaxa 5533 (1), pp. 1-82 : 48

36. Polygraphus longifolia Stebbing, 1903

( Figure 47 )

= himalayensis Stebbing, 1908

This species is diagnosed by the following morphological characters: ♂ body elongated and cylindrical; frons flattened, with minute round punctures each with a microhair, hairs moderately dense and longer towards epistomal margin; a distinct fringe of short curled golden yellowish hairs around the margin of vertex upto posterior margin of eyes; a distinct impunctate, broad area at the middle of the fringe extending as a longitudinal line on the vertex; antennal club ovate with rounded apex; pronotum 1.3× wider than long, widest at base, lateral sides rather constricted just before substraight anterior margin; pronotal surface smooth, shinning with small distinct punctures each with a microhair, a short longitudinal impunctate line at the middle of the pronotal disc; scutellum depressed; elytra 1.37× as long as its width, 1.8× as long as pronotum, basal margin weakly outcurved with weak crenulations extending upto interstria 7; elytral disc and declivity roughened; striae not impressed, punctures obscure; interstriae 2–3× as wide as striae, punctures close, confused, with some irregular granules; declivity gradually sloping, surface plano-convex, but impressed along stria 1; interstriae 1 and 3 elevated at declivital surface, marked by blunt scales; interstriae roughened with small granules; elytral surface covered with vestiture of small scales; body redish brown, body length: 2.33–2.71 mm, 2.40× as long as wide.

Females lack fringe of curled hairs on frons but have a pair of median tubercles; elytral interstriae with more distinct granules; body length: 2.53–2.60 mm.

Material examined: New records: India: 5 ♂ ′s, 3 ♀ ′s. Jammu, Ramsu , Sarbagni (33° 19.806′ N, 075° 11.984′ E, 3880 ft.), A.A. Buhroo, 20.05.2017 ( KUIC) . Jammu, Ramban, Batricheshma (33° 17.545′ N, 075° 10.597′ E, 3640 ft.), A.A. Buhroo, 20.05.2017 ( KUIC) . Jammu, Batote, Shampa (33° 07.952′ N, 075° 18.453′ E, 4225 ft.), A.A. Buhroo, 21.05.2017 ( KUIC) . Himachal Pradesh, Sanwara, Solan (30° 88.677′ N, 076° 99.854′ E, 4065 ft.), A.A. Buhroo, 20.02.2018 ( KUIC) . 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, Jammu, Uttarakhand

Hosts: Pinus roxburghii ( Pinaceae )

Figures

FIGURE 47. Polygraphus longifolia. Male: dorsal view A, lateral view B, frons C; female: dorso-lateral view D.