308 ERNEST WARREN. 



and the termitopliiles were gradually derived from the free- 

 living faunas of the different regions. 



Where the present geographical connection is close^ there 

 we find greater affinity among the termitopliiles : thus the 

 Ethiopian and Indo-Malay termitophile faamas are definitely 

 allied in that both possess such characteristic genera as the 

 physogastric dipteron Termitoxenia and the Staphylinids 

 T e r m i t o d i s c u s and C o r y t h o d e r u s . 



Similarly, with regard to the extreme type of physogastrism, 

 Paracorotoca is more closely allied systematically to the 

 Singapore genus Termitoptochus^ than to the American 

 genus Corotoca, although in general aspect the African and 

 American genera are extremely alike. 



III. DEFINITION OF GENUS. 

 Paracorotoca gen. nov. 



Head ovate, smooth, with shallow median convexity on 

 frons; occiput with a shallow concavity on each side of the 

 middle line. Compound eyes of medium size, somewhat large 

 facettes. Antenna 11-jointed, first joint about 1^ times the 

 length of second. Mandibles edentulate, curved and pointed. 

 First maxilla with a 2-jointed palp and a very large palpiger, 

 the second joint tapering, terminal, and bearing a large 

 olfactory pit on its anterior or dorsal surface. Second maxilla 

 with ligula and palpigers fused to form a bilobed plate on 

 which are inserted a pair of minute 1-jointed palps. 



Pronotum smooth with median shallow concavity. Scutum 

 quadrate. Elytra arched and supporting the overlying 

 inverted abdomen. Ala3 small, crumpled, membranous 

 structures. Tibia elongated and cylindrical ; tarsi 4-jointed ;. 

 in the second and third legs the proximal tarsal joint is about 

 twice as long as the 2nd. 



Abdomen consists of ten segments with the first of the 



' Silvestri, F., " Descrizione di mi uovo genere di Stafilinide termito- 

 filo di Singapore," ' Boll. d. Lab. di Zoo. gen. e ag. in Portici.' vol. v, 

 p. 37, 1910. 



