Indomias mayarami Ramamurthy

Y, R A M A M U Rt H & Ayri, Shaloo, 2010, Revision of the genus Indomias Marshall (Coleoptera, Curculionidae, Entiminae, Tanymecini) from India, Zootaxa 2357, pp. 1-49 : 38-39

16. Indomias mayarami Ramamurthy sp. nov.

(figs. 25, 52, 72, 124, 125, 147 and 161)

Diagnosis: This species resembles I. acutipennis (Boheman) and is distinguished by the following characters: Head 1.1x as long as rostrum, median furrow on rostrum broadly rounded anteriorly but narrow and pointed posteriorly, reaching up to middle of the eyes; scrobes 0.87x as long as rostrum. Female genitalia with spiculum ventrale having a spatulate basal plate, whose apex is rounded with few distinct hairs, apex of basal plate truncate.

Description: Colour black, with pale or dull green vestiture. Head 1.1x as long as rostrum, upper surface almost plain with deep, scattered punctations; vertex convex. Rostrum shallowly impressed at middle dorsally, as long as broad, anterior margin only 0.75x as broad as the posterior margin; median furrow broadly rounded anteriorly, but narrow and pointed posteriorly, reaching up to the middle of eyes; lateral carinae distinct; sides almost straight; scrobes 0.87x as long as rostrum, broad anteriorly, narrow, sharply pointed and convergent posteriorly. Eyes dorsolateral and convex (figs. 25 and 52). Antennae brown; scape gradually thickened; funicle with first segment 1.1x as long as second, third to fifth equal, sixth and seventh subequal; club broader than funicle, with whorl of hairs on its second, third and fourth joints (fig. 72). Prothorax 1.05x as long as broad, its breadth at middle 1.05x as posterior margin; sides well rounded anteriorly, but straight and parallel posteriorly; anterior margin only 0.75x as broad as posterior margin, truncate dorsally, acute laterally, posterior margin subtruncate; upper surface with shallow, scattered punctations, their interspaces tuberculate. Legs with hind tibial apex without any dense, golden yellow hairs. Elytra ovate, with basal margin strongly raised, its external angle acute, humeral fold prominent, more or less strongly impressed on declivity, posterior declivity distinctly sinuate; apices rounded; stria shallowly punctate; intervals broad, their upper surface moderately convex; elytral vestiture with predominant scales elongate, yellowish orange, with a small pedicel, apex broadened with 6 ridges (fig. 125), less predominant circular, yellow, with many broken ridges and a dark, circular, granulated area (fig. 124).

Female genitalia: Spermatheca with proximal arm swollen, as long as and 3.5x as broad as distal arm, angle between the arms obtuse; nodulus distinct, bulbous, with a cylindrical projection; ramus cuboidal, only 1.3x as broad as nodulus, its apex blunt; cornu short, bent at apex and pointed (fig. 147). Spiculum ventrale with basal plate 1.5x as long as broad, apex rounded with few distinct hairs, its apex spatulate, sides straight, as if cut vertically, shaft 4x as long as basal plate, uniformly thick with rounded apex (fig. 161).

Length: female, 10.00 mm; Breadth: female, 3.13 mm.

Holotype: 1female, INDIA: Kerala: Malabar: Dhony forests, 26.V.1922, Coll. Ramakrishna ( NPC).

Distribution: India: Kerala.

Etymology: This species is named after Shri Mayaram in recognition of the services rendered by him in the processing of specimens for the present study.