164 Mr. G. Lewis on 



mandibles, there is a shallow round impression behind the 

 epistoma and two faint impressions, one on each side, close to 

 the points where the striae terminate ; the thorax, marginal 

 stria slightly interrupted behind the middle of the neck, 

 surface punctuation very similar to that of the head, but there 

 are a few larger points on the sides and along the basal edge, 

 before the scutellum is a small puncture ; the elytra, the two 

 humeral striae are complete, the fifth stria is somewhat evan- 

 escent at the base, otherwise all the dorsal striae are complete, 

 rather fine, and crenulate ; between the first stria and the 

 inner humeral stria near the base the interstice is crossed by 

 an oblique stria (this stria represents the basal appendage of 

 the inner humeral when not complete as in this species), 

 interstices minutely punctulate ; the propygidium has two 

 rather large, but shallow and round impressions on either 

 side of the apex, surface very minutely punctulate, with 

 larger shallow oval points interspersed ; the pygidium has 

 the larger-sized punctures smaller and more round than those 

 of the propygidium ; the prosternum is bistriate, stria? fine 

 and almost parallel, but widening out slightly behind the 

 coxae, the striae are not turned inwards anteriorly, base 

 sharply incised ; the metasternum is correspondingly promi- 

 nent, stria complete and arched in outline; the metasternum 

 has a fine median line ; the anterior tibia? are 5-6-dentate. 



This species is very similar in form and sculpture to 

 P. elegans, Lew. 



Hab. Cameroon. 



Type Mus. Royal, Stockholm. 



Pachycrcerus euphorbia? , sp. n. 



Oblongo-ovatus, convexus, niger, nitidus : fronte stria integra, 

 ocellato-punctata, cum punctis minutis intermixtis ; pronoto stria 

 laterali antice interrupta ; elytris striis 1-4 integris, 5 dimidiata, 

 suturali basi abbreviata ; propygidio ocellato-punctato ; prosterno 

 bistriato, striis lateralibus subparallelis. 



L. 3§ mill. 



Oblong-oval, convex, black and shining, tibiae and tarsi 

 reddish brown, thighs darker ; the head convex between the 

 eyes, flat anteriorly, stria complete and well-marked, nearly 

 semicircular in front, continuing as a fine stria along the 

 base of the head, surface not closely punctured, with points of 

 varying sizes, some ocellate, some very small, others inter- 

 mediate ; the thorax, lateral stria complete and close to the 

 edge, interrupted behind the neck, punctured like the head, 

 but the ocellate punctures are chiefly behind the head and 



