1914-] KelIvOGG & Paine: Mallophagu. 233 



anterior portions of signature pale. Space in front of the mandi- 

 bles pale, divided by the signature. Trabeculae well developed, 

 reaching beyond first segment of the antennae (fig. la) and slightly 

 curved backward. Antennae long, first segment thick and about 

 equal in length to the second; last three about equal in length, 

 each half as long as the second ; first segment light in colour with 

 narrow black margins^ the three following with dark transverse 

 bands, the last lighter. Eye prominent, clear , with a very long hair 

 on the dorsal surface. Ocular band narrow, curving inward, black 

 near the margin at the anterior edge of the eye. Temples broadly 

 and regularly rounded with a narrow, black, margmal band, inter- 

 rupted by three pustules from which rise the long marginal hairs, 

 and ending in contact with a black ocular fleck; a fourth marginal 

 hair just below the eye, shorter than the others. Temples of a 

 uniform dark chestnut colour. Occiput almost straight; occipital 

 blotches blackish and occipital bands definite, extending forward, 

 becoming somewhat indefinite before meeting the antennal bands. 

 Occipital signature prominent, pointed in front. Space between 

 occipital bands pale yellowish in colour. 



Thorax shorter than head. Prothorax ordinary, with a long 

 hair on the dorsal surface in each posterior lateral angle, arising 

 from a clear pustule. Lateral margins with dark bands connecting 

 with the internal chitinous structures. Metathorax diamond-shaped, 

 with rounded lateral angles and prominent posterior angle. 

 Posterior margin with a series of about eighteen pustulated hairs 

 arising from the edge of the broad submarginal band ; this band 

 is interrupted on the meson and is continuous with the narrower 

 lateral marginal bands. I^egs well developed, dark in colour, with 

 black markings on the femora and tibiae. 



Abdomen elliptical, widest at the fourth segment. Ground 

 colour light, almost transparent in some specimens, with dark 

 chestnut abdominal blotches ; blotches rounded , overlapping in 

 front and behind, with the spiracles showing as clear spaces. 

 Dorsal hairs evenly spaced across each segment, the series varying 

 from ten to twenty-four in number. Genital blotch with two 

 large, clear pustules. 



Male much smaller than female, with abdomen more rounded. 

 Last segment of abdomen entire. 



Measnrcincnts : 



cf , Length i"6i mm. Width. $ , Length 2"or mm. Width. 



Head -50 54 -54 "67 



Prothorax 12 "29 12 '29 



Metathorax 14 -45 "26 -23 



Abdomen '89 78 1*25 71 



Docophorus atratus, Nitzsch. 



Many specimens from Corvus comix (Kashgar, Chinese Turkes- 

 tan; S. E. Fersia.), Corvus splendens {Calcuttai, Guna and Trivan- 



