Mr. C. G. Lamb on Exotic Helomyzlcl.ic, &c. 271 



There are two species in the Cam. Coll. from Africa. 

 Speiser, in l)is paper on tlie Kilimandjaro-Meru Expedition 

 (x. 5, pp. 168j 1G9), describes the species trichooscelis and 

 argyrosteihus ;. Hendel considers that the former is a syno- 

 nym of ornatifrons, Adams, the latter most probably of sene- 

 galensis, Macq. ; the author had independently come to the 

 same conclusion. Both of Speiser's species were founded on 

 single damaged specimens, and in the case of this genus that 

 procedure is especially hazardous. 



Sepedon ornatifrons, Adams. 



A fair series is in the Camb. Coll., showing quite perceptible 

 degrees of variation. 



S. Ehodesia : Chirinda Forest {G. A. K. Marshall, Camb. 

 Coll.). 



Sepedon senegalensiSf Macq. 

 Natal : Durban (F. Muir, Camb. Coll.). 



PsilidaB. 

 Chyliza, Fall. 



There are two specimens from Ceylon whicli do not agree 

 with any of the known Oriental species ; in general appear- 

 ance they are very like C. leptogaster. 



Chyliza palli'dipes, sp. n. 



Head (top view) : — The eye-borders black and somewhat 

 shining, about ^ of total frontal width, extending from 

 vertex nearly to front, but narrowing sharply in front ; the 

 wider part of the frons lying between these anterior narrowed 

 parts is bright but dull yellow, the rest is brown ochreous, 

 but the long ocellar triangle is a little shining and its base 

 and the absolute vertex are rather shining orange ; the whole 

 head is covered with tiny golden pubescence ; the bristles as 

 in C. leptogaster, but stouter in proportion. Face yellow, but 

 the lower half of the antennal pit is shining black ; the 

 narrow lower eye-margins slightly silvery. (Side view : — 

 Antenna with deep black basal joints and orange third, 

 wdiich is just perceptibly suffused on its edge ; arista pale 

 brown, with widely bipectinate flagellum, the total breadth of 

 the pectination being about equal to the breadth of third ; 

 palpi deep black, tongue yellow. Hind head entirely shining 



