new Species of Illsteiidye. 149 



is bistriate, stri;e parallel to each other before the coxte ; the 

 mesostcrnum is margiiiate, and posteriorly the stria joins 

 the transverse stria ; the tibia3 are all dilated and the tarsi 

 are ooiqual in length. 



This species is more oblong than the others known. The 

 figure given for P. permundus^ Lew. Ann. & Miig- Nat. 

 Hist. vi. p. 276 (1900), does not sufficiently show the dilata- 

 tion of the tibise. 



I lab. Bothaville, Orange River Colony {Dr. II. Brauns). 

 Taken from the galleries made by Tcrmes tulicola, Wasm. 



Enicosoma, gen. nov. 



Corpus oblongum, subquadratum, nigrum, opacura ; anteniiis brevi- 

 bus, scape magno, t'uniculo ei in medio externo adneso, articulo 

 l°globoso, -2'>-'j'" transversis sensim latioribus, clavaovali,arliculi3 

 connatis ; Ironte a clypeo baud distincta, antennarum fossa in 

 angulo protboracis. I'ronotum transversum ; elytra subi^uadrata, 

 dorso baud striate. Propygidium iuclinatum, basi rectum, 

 rrostornum latum, planum, bistriatum, basi bisinuatum. Meso- 

 stcrnum angustissimum. Pedibus sat leogis, tibiis anticis et 

 intcrmcdiis extus valde angulatis, posterioribus falciformibus et 

 iucrmibus. 



Enicosoma vespertinum, sp. n. (PI. VI. fig. 5.) 



Oblong, somewhat quadrate, black, and opaque ; the head 

 and mandibles vertical in repose, forehead rugose, obscurely 

 carinate laterally and not distinct from the clypeus ; the 

 thorax is transverse, truncate anteriorly, with a vertical space 

 on each side of tiie head (fig. 5 a), in the lower part of which 

 space are the antennal fossettes, surface behind the head is 

 opaque and uneven, tlie anterior edge is carinate, especially 

 at the sides, at the base theie is a large and deep transverse 

 excavation, deeply bisinuous in its anterior outline and 

 occupying about half the width of the thoracic base, on the 

 lateral edge there are two robust elevations clotlied witii 

 reddish-brown hair, the elevations are divided one from the 

 other by a narrow transverse channel ; the elytra are feebly 

 granulate and opaque, with a lateral carina which is feebly 

 sinuous, the elytra are shortest at the suture ; the pro- 

 pygidium is straight at the base and oblique laterally, with a 

 tomewhat small tubercle on eitiier side just before the apex ; 

 the pygidium is also straight at the base and semicircular 

 behind; the jirosternum, the keel is wide, but it is a litrle 

 narrowed between the coxa3, flat and smooth with two fine 

 bent striae, the base is markedly bisinuous ; the mesostcrnum 

 is correspondingly bisinuous, transverse and very narrow and 

 denicly punctate with a short iulcui on either side, the 



