new Species of IllsteriJae. 149 



is bistriate, strife parallel to each other before the coxfe ; the 

 mesosternum is marginate, and posteriorly the stria joins 

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

 are coequal in length. 



This species is more oblong than the others known. Tiie 

 figure given for P. permundus, Lew. Ann. & Mag. Nat. 

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

 tion of the tibiae. 



Hab. Bothaville, Orange River Colony {Dr. II. Brauns). 

 Taken from the galleries made by Termes tulicola, Wasm. 



Enicosoma, gen. nov. 



Corpus oblongum, subquadratum, nigrum, opacum ; antennis brevi- 

 bus, scapo magno, funiculo ei in medio externo adneso, articulo 

 l''globoso, 2''-7'" transversis sensim latioribus, clava ovali, ariiculis 

 connatis ; fronts a cljpeo baud distincta, antennarum fossa iu 

 angulo prothoracis. i'ronotum transversura ; elytra subquadrata, 

 dorso baud striato. Proi)ygidium iuclinatum, basi rectum. 

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

 sternum angustissimum. Pedibus sat longis, tibiis anticis et 

 intermediis extus valde angulatis, posterioribus falciformibus et 

 inermibus. 



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 the head (fig. 5 a), in the lower part of which 

 space are the antennal fossettes, surface behind the head is 

 opaque and uneven, the anterior edge is carinate, especially 

 at the sides, at the base there 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 clothed with 

 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 

 somewhat small tubercle on either side just before the apex ; 

 the pygidium is also straight at the base and semicircular 

 behind; the prosternum, the keel is wide, but it is a little 

 narrowed between the coxae, flat and smooth with two fine 

 bent striae, the base is markedly bisinuous ; the mesosternum 

 is correspondingly bisinuous, transverse and very narrow and 

 densely punctate with a short sulcus on either side, the 



