ERISTAI.IS. 191 



Generally distributed in India I'roni Kashmir to Bangalore 

 and Cliittajrong, ii, iii, vii, x, xi, xii ; Deesa, vi. 1897; vii. 1901 

 (Nurse). Dr. de Meijere described it t'roni ^Singapore and 

 Bombay. 



This description is mainly a translation of de Meijere 's, but that 

 of rhe abdomen of both sexes is chieHy my own, drawn up from a 

 large number of specimens in good condition. 

 2^l/pe in Amsterdam Mu.■^eum. 



E. obscuritarsis, de Meij., is very closely allied to E. quinque- 

 siriatus, Fabr., yet it is a perfectly distinct species, as is quite 

 obvious when several specimens of each sex of both forms are 

 placed side by side. In quinquestriaias, Fabr., S ■, tlie principal 

 specific points appear to be as follows : (i) a small olive-brown 

 spot on each eye-margin, about half-uay between upper angle of 

 frontal triangle and level of antennae, or a trifle lower ; (ii) a 

 small black triangle (due to absence of tomentum) at about exact 

 centre oF frontal triangle, always isolated from the shining black 

 antennal prouiinence, and with uo tendency to form a longitudinal 

 line; (iii) a small olive-brownish spot on each side of face, 

 contiguous to eye-margin, a little below level of antennte; 

 (iv) central bump narrowly shining black, the colour carried 

 narrowly upwards for a short distance as a fine line ; (v) on each 

 side of central bump, a very narrow black line (ofren indistinct in 

 good specimens through density of tomentum), its upper part 

 curved outwards a little ; (vi) tlie abdominal 4th segment with the 

 whitish band more like a broadly open inverted V ; a similar band 

 on 3rd segment, but narrower and less distinct ; no band on 2nd 

 seguient. In the $ the normal frontal marks are as follows : 

 (i) a pair of longitudinally placed, obloni;, olive-brown or blackish 

 spots on upper part of frons side by side, just below ocellar region ; 

 (ii) a little below these, two small s[)ots, one on each side on the 

 eye-margin, with a diamond-shaped spot bet ween them, all three 

 more or less connected by a faint brownish transverse line ; 

 (iii) below these, a small curved spot on each side, on or verv near 

 the eye-margin ; (iv) a lirtle above level of antennte, two small 

 roundish spots one on each side on or near the eye-nuirgin, w ith a 

 shining black triangular spot between them, placed a little 

 above (but not joined to) the shining Idack triangular antennal 

 prominence; (v) central bump and fine side lines as in c^ . 

 Abdomen with bands on '2nd, ;ird and 4th segments all gently 

 curved, that on 2ni\ often fainter and narrower. 



In olisciiritarsis, de Meij., c? (i) there are no small brown spots 

 on eye-margins of frontal triangle : (ii) no isolated black spot in 

 centre of frontal triangle, but a small one generally contiguous to, 

 or very near, the black anteiniai ])rominence, and often more or 

 less continued upwards as a fine black line; (iii) no definite side 

 spots on face, but indistuict nuirkings often present: (iv) and 

 (v) as in quinqnestriatKs. It must be noted that in ohsniriidi-sis 

 the tomentum of the frons is more yellow isli-grey, that oi the 

 face whitish, and the two colours are more sliar[)ly demarciti-d 

 than in quinquestriatus. In the abdomen the white bands on tiie 



