>7eir or little knoivn Cetoiiiida\ 263 



short, the apex dilated aud rouuded ; legs reddish-brown, inter- 

 mediate femora with a white stripe on the outside, the posterior 

 femora Avith a similar stripe on each side, anterior tibia; Avith 

 three lateral teeth, the upper one obtuse the others acute, hinder 

 l^airs of tibia; with one acute tooth about the middle. 

 Lake Nyassa. 



A few specimens of this species were taken by Mr. Simons 

 at Monkey Bay, near Livingstonia ; it somewhat resembles 

 P. Jeiicomekma, G. & P., in coloration, l)ut is otherwise very 

 different. 



Diplognathu striata^ n. sp. 



D. nigra nitida, subtus fusco-testacea ; clypeo antice, thorace 

 marginibus lateralibus anguste, pygidioque maculis duabus flavis ; 

 elytris profunde punctato-striatis. Long. 19-21 mm. 



Var. a. tota nigra. 



_ Var. b. supra rufo-brunnea ; capite i^unctis duabus, thorace 

 vittis duabus macuhsque lateralibus nigris. 



Head siiort and broad, finely rugose, the base smooth, sides of 

 clypeus strongly elevated and sinuous, anterior margin broadly 

 emarginate, concave beneath, the angles produced, obtuse and 

 turned up ; shining black, the clypeus yellow. 



Thorax very coarsely and shallowly punctured at the sides, 

 the punctures very close and confluent in front, but much finer 

 aud sparse on the disc, the posterior angles strongly rounded, the 

 basal margin slightly produced and feebly emarginate above' the 

 scutellum ; shming black, the sides narrowly margined with 

 yellow. 



_ Scutellum long and narrow, the apex acute, impunctate, the 

 sides strongly impressed ; shining black. 



Elytra depressed behind the scutellum, each with six deej) 

 punctate stria;, the outer one abbreviated, the interstices shghtly 

 convex and smooth, the sides and apex very finely strigose and 

 punctured, the shoulders with a shallow punctured fovea, and a 

 deep elongate depression near the margin ; pitchy-black, shining 



Pijgidium slightly convex in the centre, very finely strigose ; 

 black, slightly shining, with a large yellow marginal spot on 

 each side. 



Beneath sparsely strigose at tlie sides, reddish-yellow, shining, 

 blackish in jjarts ; mesosternal process slightly swollen and 



