Polygraphus aterrimus Strohmeyer, 1908b

Buhroo, Abdul Ahad, 2024, A taxonomic monograph of subfamily Scolytinae (Coleoptera: Curculionidae) in the Western Himalaya, Zootaxa 5533 (1), pp. 1-82 : 46-47

34. Polygraphus aterrimus Strohmeyer, 1908b

( Figure 45 )

This species is diagnosed by the following morphological characters: ♂ frons plano-concave, entire surface with close dense punctures and erect hairs denser on margin forming a ring, hairs not touching each other at tips; eyes completely divided into two parts; antennal scape long; funicle with five segments; club obtuse with fine pubescence; pronotum 1.3× wider than long, median line distinct, basal margin substraight, lateral sides outcurved and suddenly narrowing before emarginate anterior margin; surface shining with distinct dense punctures and small scale-like setae; scutellum depressed; elytra 1.47× as long as its width, three times longer than pronotum, basal margin somewhat substraight with weak crenulations, lateral sides subparallel upto basal three fourth, thence broadly rounded posteriorly; discal striae marked by punctures, each with a microhair; striae 1 and 2 more impressed than others; interstriae nearly three times wider than striae with small irregular punctures intermixed with short, blunt setae; interstriae toward basal margin more roughened and granulate; declivity commencing on posterior fourth, face convex and steep, stria 1 impressed; head pitchy black, pronotum and elytra dark brown; body length: 3.48 mm, 2.43× as long as wide.

Females are armed with a pair of frontal tubercles and slightly larger than males; body length: 3.52 mm.

Material examined: New record: India: 1 ♂, 1 ♀. Himachal Pradesh, Shimla, Tharoch (30° 56′53.67′′ N, 77° 36′33.58′′ E, 6338 ft.), A.A. Buhroo, 15.07.2011 ( KUIC) .

Distribution: India: Himachal Pradesh, Uttarakhand, Thailand

Hosts: Abies pindrow , Cedrus deodara , Pinus roxburghii , P. wallichiana ( Pinaceae )

Figures

FIGURE 45. Polygraphus aterrimus. Male: dorsal view A, lateral view B; female: dorsal view C, frons D.