Brachyaulax cyaneovitta ( Walker, 1867 )

Brachyaulax cyaneovitta ( Walker, 1867)

( Fig. 1)

Scutellera cyaneovitta Walker, 1867: 16 ; Distant 1899:35

Tectocoris oblonga Westwood, 1837 : Distant 1902: 52

Scutellera amethystine Germar, 1839 : Ho, 2003: 195

Redescription

General Colour ( Fig. 1) greenish or violaceous blue with black spots dorsally; antenna, sternum, femora, tibia and all tarsal segments black; labium, coxa and trochanter brown, lateral margins of pronotum, lateral margins and a central basal patch to the ventral abdomen irregularly reddish ochraceous.

Head ( Fig. 2 A) declivent, length (3.5) and breadth (3.7) subequal, lateral margins sinuate, tylus surpasses jugal lobes, preocular region 2.2x as longer post ocular; interocellar distance 2.1x to interocular while ocellus placed 0.8 apart from eye; a black spot from apex to base in the central lobe and a spot around each eye present, and eyes protruding laterally. Antennae ( Fig. 2 B) five segmented, attached ventrally, near to eyes, first segment (1.0) never reach beyond apex of the head and it is subequal to third (1.05), second smallest amongst all and also less than 0.5x as the first; fourth 1.2x as third while fifth longest and almost 3.5x as long as second and total length 5.3. Labium ( Fig. 2 C) four segmented, extends upto second abdominal segment, first smallest (0.9), second largest (1.95) and almost 2.2x to previous one, third and fourth measure 1.05 and 1.25, respectively, and total length 5.15.

Thorax with pronotum ( Fig. 2 D) having its anterior margin straight, breadth across anterior angles subequal to that at middle (3.8) while that at posterior angles 1.53x as that at the middle, and its anterior angles subquadrate while posterior ones obtuse. Surface before discal area depressed, large and deep punctures at anterior margin and in depressed area, six black spots arranged in two transverse series, the posterior one largest and small hairs present near to marginal area laterally. Scutellum ( Fig. 2 E) covers whole of the abdomen, 1.55x long as breadth at base; ten spots on the surface, three basal, middle one linear and elongated, two before middle, sometimes attached to the lateral margins and sometimes connected, two small and lateral, sometimes connected with the preceding, two a little before apex, sometimes connected and one apical with apex rounded. Metathoracic scent gland ( Fig. 2 F) orifice spherical, peritreme transverse, slightly curved medially, grooved throughout the length, evaporatorial surface sulcated or wrinkled, and widely extending to mesopleuron. Anterior margin of prosternum concave medially, and with a deep groove resting labium. Legs ( Fig. 2 H, 2 I and 2 J) have no taxonomic information, its measurements of length of fore, middle and hind femora 2.1, 2.8 and 3.2, respectively, while that of fore, middle and hind tibia 2.5, 2.8 and 3.6, respectively, tarsi with three segments, second smallest, first and third subequal and almost 2x as long the second.

Abdomen ( Fig. 2 G) 1.25x as long as broad, median furrow upto second segment to hold the labium in resting condition, and with a greenish or bluish-black subquadrate spot in each segment more towards lateral area.

Female genitalia ( Fig. 2 K and 2 L) with ovipositor having eighth paratergite triangular and of moderate size, its postero- lateral angle projecting posteriorly, ninth small and lobe like, first gonocaxa large, its posterior margin medially sinuted, and bear small hairs on its posterior margin. Spermathecal bulb elongate with apical end rounded, proximal and distal flanges vasiform, pump region short, distal duct 0.5x as thick as proximal, its dilation large and balloon shaped.

Male genitalia already described by Kumar (1964).

Material examined: INDIA: South India, Valparai , 1♀, 5.vi.1998, G. Ravindra coll .

Distribution: India (Assam), Myanmar.