Seticotasteromimus jarawa, Germann & Ch- & Ch-, 2013

Germann, Christoph, 2013, Seticotasteromimus gen. n. jarawa sp. nov. from the Andaman Islands (Coleoptera, Curculionidae), Revue suisse de Zoologie 120 (1), pp. 125-129 : 128

Seticotasteromimus jarawa sp. nov.

Figs 1-5

HOLOTYPE: female: INDIA, South Andaman Island , Sippighat // N11°35'38” / E92°41'41”, 11.12.2006 // Holotype Seticotasteromimus­ jarawa sp. nov. des. Germann 2012” ( MHNG, without registration number).

DESCRIPTION

Size: 2.1 mm (without rostrum).

Colour: dark brown, antennae and tarsi auburn.

Head,­ rostrum­ and­ antennae: head globular, hidden in the pronotum; frons vertical, rostrum straight, 4 times longer than wide, parallel sided, surface striate; eyes below level of rostral dorsum, vertical oval, flat. Antennae inserted behind middle of rostrum; scrobes reaching the eyes. Antennal scape hardly longer than width of rostral apex. Antennal funiculus consisting of 7 segments, all about as long as wide. First segment as wide as scape, following three segments one third of its breadth, segment 5 half as wide, segment 6 two thirds as wide as first one, segment 7 as wide as first one, club oval. Integument: Frons with thin and bowed hairs, dorsum of rostrum with sparsely standing, bowed clubbed bristles; same bristles on antennal scape and first segment of funiculus.

Pronotum: longer than wide (length/width: 1.2); widest along its middle, constricted at first third, irregularly and coarsely punctuate, spaces in between reduced to thin margins. Integument consisting of thin, bowed hairs and long (4 x longer than wide) raised, clubbed light brown bristles. Scutellum visible, pentagonal.

Elytra: elongate (length/width: 1.7), parallel sided from shoulders to last third. Distinct shoulders, hind wings present. In lateral view flattened at disc and regularly rounded at decline. Ten elytral striae, striae very coarsly and deeply, regularly punctuate, wider than interspaces. Interspaces regularly set alternately with thin and bowed hairs, and long (4 x longer than wide) raised, clubbed light brown bristles.

Underside: coarsely punctuate, four apparent ventrites, suture between the first two (fused) ventrites indistinct (Fig. 3). Coxae separated from each other as follows: procoxae by their diameter, mesocoxae by 1 ½ and metacoxae by two times of their diameter.

Legs: femorae edentate, strong, tibiae all uncinate at outer angle. Third tarsal segment bilobed. Claw segment gracile, claws simple, free. Integument consisting of both, thin and bowed hairs, and long (3 x longer than wide) raised, clubbed light brown bristles.

Female­genitalia: Figs 4-5; male unknown.

ETYMOLOGY: The species name refers to an indigenous tribe of the Andaman archipelago, and is a noun in apposition.

BIONOMY: S.­ jarawa sp. nov. was beaten from branches in a mosaic of primary and secondary tropical lowland forest near Sippighat on South Andaman-Island.

DISTRIBUTION: The present distribution area of Cotasteromimina reaches from India (Andaman Islands) to Taiwan, Korea and Japan in the East, down to Malaysia (Cameron Highlands) in the South ( Fig. 6 ). Seticotasteromimus gen. n. is presently solely known from South Andaman Island. Cotasteromimus with C.­morimotoi Chûjô & Voss, 1960 and C.­squamiger Morimoto & Miyakawa, 1985 is known from Taiwan, Korea and Japan. Cotasteromorphus­ chujoi Kojima, 2005 was described from Malaysia, and Pseudohylobius­setosus Morimoto, 1962 from Japan.

Figures

FIG. 6 Map of the finding locations of Seticotasteromimus gen. n. (black square), Cotasteromimus Chûjô & Voss, 1960 (black circles), Cotasteromorphus Kojima, 2005 (white circle), and Pseudohylobius Morimoto, 1962 (white square) in South East Asia.