Coccotrypes papuanus ( Eggers, 1923 )

Buhroo, Abdul Ahad, 2024, A taxonomic monograph of subfamily Scolytinae (Coleoptera: Curculionidae) in the Western Himalaya, Zootaxa 5533 (1), pp. 1-82 : 22-23

14. Coccotrypes papuanus ( Eggers, 1923)

( Figure 19)

= Dendrurgus papuanus Eggers, 1923

= decipiens Browne, 1972 ( Poecilips )

= glandis Beeson, 1939 ( Thamnurgides )

= rubidus Beeson, 1939 ( Thamnurgides )

This species is diagnosed by the following morphological characters: ♀ frons plano-convex, weakly convergently acciculate on lower half with sparse, fine granulate punctures above, shining, subreticulate towards vertex; median line broadly, indistintctly elevated; vestiture of sparse, fine, long hairs; eyes anteriorly feebly emarginated; antennal club obliquely truncate, with two recurved sutures on its posterior face marked by short, pale hairs; pronotum slightly wider than long (1.04×),widest just behind the middle, lateral sides slightly out curved, strongly converging anteriorly towards rounded apex; surface plano-convex, shining and subreticulate with fine, moderately dense punctures each with granulate margin; vestiture of moderately dense, long erect and short recumbent hairs; scutellum somewhat raised, subtriangular; elytra 1.52× as long as pronotum; basal margin substraight; lateral sides subparallel, converging on posterior third into ovately rounded apex; strial punctures large, shallow without any microhair, separated within the row by distances nearly equal to diameter of a puncture; interstriae about 1.5× as wide as striae, marked by shallow, small punctures replaced by minute granules towards apices; vestiture of long and erect interstrial bristles with slightly flattened apices on apical third, each bristle slightly longer than distance between rows or between bristles within a row; declivity commencing slightly below the middle, face plano-convex, rather flattened in the area up to striae 3, striae 1 impressed, strial punctures as on disc; body color dark brown to pitchy black; body length: 2.26 mm, 2.30× as long as wide.

Male: Not seen in the material examined.

Material examined: New record: India: 1 ♀. Himachal Pradesh, Gaghar (32° 09.463′ N, 076° 16.697′ E, 2584 ft.), A.A. Buhroo, 26.09.2018 ( KUIC) .

Distribution: India: Himachal Pradesh (new record), Assam, Punjab, Uttarakhand, West Bengal. Malaysia, Vietnam, Indonesia, New Guinea, Philippines

Hosts: Mangifera indica (new host record). Dipterocarpus gracilis ( Dipterocarpaceae ), Lithocarpus elegans ( Fagaceae ), Mesua ferrea ( Calophyllaceae ), Syzygium formosum ( Myrtaceae ), Terminalia myriocarpa ( Combretaceae ).

Genus Dryocoetes Eichhoff, 1864

Dryocoetes species are diagnosed by the following morphological characters: body length: 2–5.1 mm; eyes anteriorly emarginate; funicle five-segmented; club obliquely truncate with one to two recurved sutures on the posterior face; pronotum not arched (evenly convex), anterior half roughly sculptured with indistinct asperities, posterior half finely punctured; scutellum longer than wide; elytra with prominent striae; declivity rounded, unarmed, granulate; procoxae contiguous; protibia with five-socketed teeth on outer surface; host: both conifers and deciduous trees.

Key to the Himalayan species of Dryocoetes Eichhoff, 1864

1 Body length equal to or more than 5mm ........................................ D. brownei Mandelshtam & Petrov

- Body length less than 5mm ............................................................................. 2

2 Anterior pronotal margin asperate.......................................................... D. asperatus sp. n.

- Pronotum without marginal asperities..................................................................... 3

3 Elytral strial punctures small; interstriae much wider than straie; striae 1 and 2 not so impressed on disc and declivity........................................................................................... D. indicus Stebbing

- Elytral strial punctures large; interstriae narrower than or as wide as striae; striae 1 and 2 strongly impressed on disc and declivity............................................................................................ 4

4 Declivital striae 1 and 2 deeply sulcate/ grooved and both dilated away from sutural line towards apex; sutural interstriae slightly elevated; pronotal surface mostly granulate, coarser antero-laterally with rather irregular punctures around impunctate median line towards base........................................................ D. quadrisulcatus Strohmeyer

- Declivital striae 1 and 2 not prominently sulcate, interstriae 4 and 5 terminated at the commencement of declivity; pronotum finely and closely asperate antero-laterally, basal half densely and coarsely punctured without impunctate area......................................................................................... D. himalayensis Strohmeyer