58 JOURNAL OF ENTOMOLOGY AND ZOOLOGY 



PAEASITIDvE i 



Ophiomegistus n. gen. 



Belonging to the Antennopbori section of the Parasitidte. 

 Body broad, rounded. Legs short, first pair without claws or 

 caroncle, ending in several fine hairs. Peritreme long, and 

 reaching forward in front of coxse I. Ventral shield in two 

 parts separated just in front of vulva; anal not separated, 

 the ventri-anal shield occupying all the venter. Genital aper- 

 ture of male only a short distance back of front margin of 

 sternal plate. 



Type — The following species : 



Ophiomegistus htzonensis n. sp. 



Body as broad as long, narrowed each side in front, above 

 smooth, margin (except in front and concave anterior sides) 

 provided with a row of stiff bristles, less than half a bristle 

 length apart; a few, mostly near the tip, are longer than the 

 others. Legs short and stout, first pair plainly longer and 

 more slender than others, tipped with bristles, no claws; 

 other legs with large caroncles, all with rather stiff scattered 

 hairs. Venter in female with a transverse bowed line between 

 coxae III and IV, and a curved furrow in the middle behind it. 

 Greater part of ventral surface provided with very short spines, 

 pointing forward ; behind are several curved rows of elongate 

 scales, and near margin is a submarginal groove. The peri- 

 treme shows, on outer edge, near the spiracle, a series of trans- 

 verse apertures, and forward are many of these slits in the 

 thickened rim of the i^eritreme. The male genital aperture 

 is transversely elliptic, and hardly half its short diameter from 

 anterior margin of sternum; on hind femur is a curved tooth, 

 and on submarginal groove, three teeth, the posterior two close 

 together. Length .8 mm. 



FVom Los Banos, Philippine Islands, on snakes, (Baker). 



Polyaspis lamellipes n. sp. 

 Body not twice as broad as long, broadly rounded behind, 

 rather narrowed in front. Leg I not as long as body; leg IV 



