146 FORFICULIDiE. 



a trifle longer, but not equal to the third, ovate ; sixth equal to 

 the third in length but a little thicker, elongate ovate ; the rest 

 more slender and long. Head smooth and black, tumid, the sutures 

 deep. Pronotum black, with a distinct median suture and an 

 impression on each side in the prozona ; about as broad as long, 

 truncate anteriorly, rounded posteriorly, scarcely if at all broader 

 posteriorly than anteriorly. Prosteruum rather long, constricted ; 

 mesosternum truncate ; metasternum with lobe short, scarcely 

 passing the posterior coxse, broad, truncate. Elytra smooth, jet- 

 black, broad, with no keels. Wings prominent, clear orange, with 

 a fuscous outer margin. Legs not very long ; femora reddish 

 chestnut, blackish at the base ; tibiae blackish, smootli above, 

 depressed only at the apex itself ; tarsi not very long, with dense 

 golden pubescence. Abdomen broad and depressed, parallel-sided, 

 blackish chestnut, lateral tubercles strong. Last dorsal segment 

 of c? transverse ample, smooth, with a short folded ridge at each 

 angle, tumid over the insertion of the forceps, depressed in the 

 middle, with two parallel compressed longitudinal ridges ; in the $ 

 narrower, the ridges and elevations feebler than in the d . Venter 

 tawny. Penultimate ventral segment of (S ample, broad, the 

 posterior margin rounded, with a slight median excision ; similar 

 in the § but not emarginate. Pygidium of c? not prominent; in 

 the $ produced into a depressed plate, slightly widened apically 

 and deeply emarginate, thus forming a pair of triangular lobes. 

 Forceps reddish in both sexes ; in the d short, stout, remote at 

 base, depressed, straight, incurved apically, blunt, with three small 

 teeth on the inner margin ; in the $ depressed, elongate, and 

 nearly straight. 



c? 2 



Length of body 9*5 mm. 8'5 mm. 



„ forceps 2 „ 2-75 „ 



Bombay : Kanara, August {Pusa coll.). 



Type in the Pusa Collection. 



This species closely resembles A. glaucopterus, but diifers in the 

 bright orange wings, with only the outer border blackish, in the 

 dull black elytra with no metallic sheen, in the chestnut legs, and 

 blacker abdomen ; the last dorsal segment and forceps of the 

 male are almost exactly similar, but the pygidium of the female is 

 totally different, being much shorter, somewhat broadened apically 

 and deeply fissured, thus forming two triangular lobes. 



90. Adiathetus tenebrator, Kirby* 



Chehsoches tenebrator, Kirby, (91) p. 521, pi. 12. fig. 5 ( $ ), (04) 

 p. 33 ; JBorm. (00'^) p. 85 ; Bun; (07^) p. 129. 



Size medium ; colour blackish brown. Antennae with 15 

 seo^ments, with a pale ring before the apex ; fourth little over half 



