OREODERUS. PODOTALGUS. 



229 



S . The propygidium is gently excised in the middle of the 

 hind margin and the hind tarsi are distinctly longer than those of 

 the female. 



2 . The body is relatively broader and the prothorax is more 

 abruptly narrowed in front. Each elytron has a thick longitu- 

 dinal brush of erect dark hairs within and behind the shoulder. 



Fig. 51. — Orcoderiis (/ravis, male and female. 



The propygidium is horizontal and produced back\^ards, with two 

 sharp points near the middle of the hind margin. 



Length 10-11 mm. ; hreadtli 5-6 mm. 



Madras : Nilgiri Hills, Travancore, Permaid. 



Type in the British Museum ; cotypes in the Oxford Museum 

 and Mr. H. E. Andrewes' collection. 



Genus PODOVALaUS, nov. 



Type, Fodovalgus r/nseus, sp. n. 



Range. That of the type. 



Body elongate, depressed above and clothed with scales. Legs 

 short ; the front tibiae acutely tridentate, the teeth rather close 

 together and the uppermost one placed at about the middle of the 

 outer edge ; all the tarsi very short, thick and compact, and the 

 claws short and apposed. Clypeus long, parallel-sided and emar- 

 ginate at the end, with the angles reflexed and blunt. Prothorax 

 not dilated beyond the middle, with a nearly complete longitudinal 

 median furrow, bordered by two prominent, nearly parallel earinse. 

 Scutellum moderately long. Terminal spiracles borne by pro- 

 minent tubercles situated at the hind margin of the propygidium. 

 Eifth ventral segment as long as the three preceding together. 



The sexes are alike, but the abdomen of the male is very slightly 

 arched beneath. 



Only the following new species is known. It seems probable 

 from its peculiar structure and aspect that it is an inhabitant of 

 ants' nests, although no record of its capture is available. 



