Oedignatha binoyii, Reddy & Patel, 1991

Reddy, T. S. & Patel, B. H., 1993, Two New Species Of The Genus Oedignatha Thorell (Araneae: Clubionidae) From Coastal Andhra Pradesh, India, Entomon 18 (1), pp. 47-51 : 47-49

Oedignatha binoyii sp. novo ( Fig. 1-7 ).

General: Cephalothorax and legs reddish brown, abdomen reddish black and decorated with two longitudinal rows of four pairs of pale patches with white hairs. Total length 5.92 mm. Carapace 3.01 mm long, 2. 11 mm wide; abdomen, 3.27 mm long, 2.06 mm wide.

Cephalothorax: Oblong, longer than wide, reddish brown, with irregularly arranged small pits. The cephalic shield extending upto the frontal median eyes and ~ prominent median tubercle situated just below the median frontal eyes in front of the cephalothorax. Thorax provided with central fQvea. Eyes in two rowS, anterior and posterior. Anterior row of eyes slightly procurved 'and equal in size; anterior and posterior medians are equal in size. Posterior row procurved, slightly longer than the anterior row; posterior medians slightly smaller than the posterior laterals and placed equidistant from each other. Laterals close to each other. Ocular quad almost square, slightly narrow anteriorly as in Fig. I. Sternum, oval. reddish brown, clothed with hairs and decorated with irregularly arranged small black pits. Labium reddish brown, longer than wide, slightly depressed at the middle and extends beyond the middle of maxillary lobes. Maxillae reddish in colour, longer than wide, very slightly depressed at the middle, distal end pale, broad and rounded provided with scopulae. Chelicerae large, reddish brown, scopulated distally with chocolate brown hairs; inner and outer margins of fang furrow provided with five and three big teeth resp. as in Fig. 7 . Legs long, slender, strong and stout. Femora I and II slightly curved and III and IV velY little curved. Tibiae and metatarsi I ~nd II provided with eight and six pirs of thin ventral spines respectively. Tarsi relatively long provided with two claws and tenent hairs. Leg formula I 4 2 3.

Male: Similar to the female and nearly equal in size. Total length 6.00 mm. Male palp as in Figs. 4, 5 and 6 .

Abdomen: Oblong, longer than wide, reddish black in colour. Dorsum provided with hard sclerotized shield, decorated with four pairs of pale patches with white hairs arranged mid-Iogitudinally in two rows as in Fig. 1 . Ventral side lighter than the dorsal and not uniformly coloured. Epigyne and internal genitalia as in Figs. 2 and 3 .

Holotype One ~ , paratype I ~ , allotype 1♂ in spirit. Type-locality: Araku , Dist Visakbapatnam, 18.x.1986. CoIl. T.S. Reddy .

Diagnosis: This species resembles Oedignotha procerula Simon but it is separated as follows: (i) Anterior row of eyes slightly procurved and anterior and posterior medians are equal in size but in O. procerula anterior row of eyes slightly recurved and anterior medians larger than the posterior medians. (ii) Tibiae and metatarsi I and II provided with eight and six pairs of thin ventral spines resp. but in o. Procerula tibiae and metatarsi I and II provided with seven and five pairs of ventral spines respectively. (iii) Male palp is also structurally different.

Figures

Figs. 1-7. Oedignatha binoyii sp. novo 1. Dorsal view of female (legs omitted); 2. Epigyne; 3. Internal genitalia; 4. Right male palp - ventral view; 5. Right male palp - inner view; 6. Right male palp - outer view; 7. Right chelicera - ventral view