Classification of the Coleopterotis family Endomychidae. 11 



The species is a rather small one, closely resembling 

 T. erotyloides Gerst., but smaller, with less ovate and convex 

 elytra. The prothorax, the last joint of the antenna and 

 the tarsi are bright yellow, the median bar and apices of 

 the elytra paler, and the apical patch distinctly bilobed 

 anteriorly. 



The male has the middle tibiae slightly incurved at the 

 ends and the last ventral segment rounded behind. In the 

 female the tibiae are nearly straight, the last ventral seg- 

 ment is elongate and rather deeply grooved, and the one 

 preceding it is broadly impressed. 



The larva is flattened, with very long hairy processes 

 fringing the body all round and with rather long antennae. 



Trycherus nitidus, sp. n. 



Niger, elytrorum apicibus lacte riifis fasciaque antcmodiana undu- 

 lata, ad siitiuam interrupta, pallide flava ; modice elongatus, nitidus, 

 aubtiliter sat crebre punctatus, pronoti lateribus bisinuatis, anguste 

 Diarginatis, angulis j)osticis acutis, paulo pioductis, basi leviter 

 juarginato, utrinque minute f oveato ; elytris paiilo convexis, elong- 

 atis, humeris prominentibus, lateribus leviter arcuatis, baud late 

 marginatis, apieibus baud productis; antennis gracilibus, clava 

 angusta : 



ij, tibia antica ante apicem intus paulo deiitata. 



Long. 10"5 mm. ; lat. max. 5'5 mm. 



Hab. Uganda : Entebbe {C. C. Gowdcy, Apiil), Damba T., 

 Victoria Nyanza (G. D. H. Carpenter, Oct.) ; Gold Coast : 

 Tamsoo, near Tarkwa {G. A. Higlelt). 



There are four specimens in the Museum. 



The elytra are a little more convex and shining than 

 those of T. ajjpendicidatus and T. aftenvatus, which this 

 species closely resembles in pattern, and their apices are 

 of a uniform bright yellow colour, with the anterior edge 

 of the patch rouiided and not excised as in the species 

 mentioned. The anterior pale mark is exactly as in T. 

 atfenuatus. 



In this species the sexual differeiice seems to be reduced 

 to its mininuim in the genus. The usually well-marked 

 external male characters are absent, and that sex can only 

 be recognised, without dissection, by a very slight tooth 

 towards the end of the front tibia at its inner edge. The 

 thick clothing of hair at that part increases the difficulty of 

 detecting this tooth. 



