Hypothenemus birmanus ( Eichhoff, 1878a )

Buhroo, Abdul Ahad, 2024, A taxonomic monograph of subfamily Scolytinae (Coleoptera: Curculionidae) in the Western Himalaya, Zootaxa 5533 (1), pp. 1-82 : 64-65

51. Hypothenemus birmanus ( Eichhoff, 1878a)

( Figure 64 )

= Triarmocerus birmanus Eichhoff, 1878a = birmanus Eichhoff, 1878b

= maculicollis Sharp, 1879

= peritus Blandford, 1894

= farinosus Blandford, 1896a

= valens Sampson, 1914

= perkinsi Hopkins, 1915

= psidii Hopkins, 1915

= sterculiae Hopkins, 1915

= alter Eggers, 1923

= uter Eggers, 1923

= nibarani Beeson, 1933

= ampliatus Eggers, 1936

= pacificus Beeson, 1940

= castaneus Wood, 1954

= dubius Schedl, 1971

This species is diagnosed by the following morphological characters: ♀ frons moderately convex, feebly impressed above epistoma, with median longitudinal strip smooth and shiny, laterally finely reticulate; vertex strongly reticulate; surface with small, obscure, rather sparse punctures; vestiture of fine, sparse, rather short hair somewhat long and abundant on epistoma; eyes shallowly emarginate, finely faceted; antennal funicle with four segments; club flattened, suture 1 partly septate; other two sutures rather procurved; pronotum 1.14× wider than long, widest on basal third, sides rather strongly arcuate, converging towards narrowly rounded anterior margin; anterior margin with four closely placed serrations, median pair largest; summit at middle, anterior slope armed by 18–20 distinct asperities; posterior areas smooth, shining with small punctures; vestiture of ground cover of short semi-recumbent hair, intermixed with sparse, longer bristles anteriorly and laterally, sparse slender scales near base; elytra 1.49× as long as wide, 1.76× as long as pronotum; lateral sides subparallel upto basal two-thirds, narrowing posteriorly with rounded apex; striae weakly impressed on base and declivity, punctures moderately larger near base, small towards declivity; interstriae more than twice as wide as striae, with irregular 2–3 rows of minute punctures; declivity convex, moderately steep; sculpture nearly same as on disc; vestiture of ground cover of short hairs on disc, more stout and denser on declivity; uniseriate erect interstrial scales (each scale 2–4× as long as wide); flattened interstrial scales stout and more denser on declivity than on disc; body color dark-brown to black; body length: 2.10–2.12 mm, 2.38× as long as wide.

Male similar to female except anterior margin of pronotum with only two serrations, eyes greatly reduced in size, antennal club smaller, more slender.

Material examined: New record: India: 3 ♀ ′s. Himachal Pradesh, Tanda Palampur (32° 06.141′ N, 076° 32.036′ E, 4008 ft.), A.A. Buhroo, 25.09.2018 ( KUIC) .

Distribution: India: Andaman Islands, Himachal Pradesh (new record), Madhya Pradesh, Uttarakhand. South East Asia, Australia, Micronesia, Hawaii, Africa and Central and North America

Hosts: Collected from unknown wood, and many other Leguminosae hosts as reported by Browne (1961)

Figures

FIGURE 64. Hypothenemus birmanus. Female: dorsal view A, lateral view B, frons C.