52 Mr. C. G. Lamb on Exotic Cliloropidae. 



concave sides bordered with hair-lines, and it is the same 

 colour as the frons but shining and suffused across the 

 middle with pale brown, as shown by the dotted boundary- 

 line in the figure; the ocellar spot is black; a very distinct 

 but narrow furrow runs from front ocellus I'ight to edge of 

 frons. Hind head broadly black, with pale yellow bordering 

 stripes starting from the vertical bristles. Side-view as in 

 fig. 9 ; all yellow, the haired frons more orange, rest quite 

 bare except for a few oral hairs. Antennae with yellow 

 basal joints, deep black orbicular third ; arista white, basal 

 joints a little suffuse, pubescence very fine. Face all pale 

 yellow; palpi pale, but just perceptibly infuscate outside at 

 tip ; tongue yellow. 



Thorax : dorsum moderately shining yellow, with black 

 hairs ; three broad black stripes, the middle one beginning 

 on neck and extending to scutellum, the side ones abbre- 

 viated in front but meeting the middle one behind, so that 

 they form an almost uninterrupted band on hind dorsum ; 

 small side-lines above the wings run into the main pair ; 

 humeri pale yellow. Pleura pale yellow ; a shining oval 

 black spot on the lower front angle of the mesopleura, the 

 usual black triangle over the middle coxa, and a smallish 

 black oval spot over the hind coxa. 



. Wings normal, clear, thick-veined ; in one of the two 

 specimens both the hind cross-veins are broken in the 

 middle. Halteres bright whitish yellow, with darkened stalk. 



Legs entirely yellow except that the front tarsus and last 

 joints of the others are very faintly infuscate. 



Abdomen: dorsum all brown-black, slightly shining, the 

 hind margins of all segments but last very narrowly yellow, 

 the last broadly so ; venter paler. 



Size (ex. antennae) 3^ mm. 



Cam. Coll., Peradeniya, Ceylon (J. C. F. Fryer). 



Parectecephala, Beck. 



Parectecephala varifrons, sp. n. 



A species in the Cam. Coll. is best assigned to this genus; 

 the triangle is rather longer than normal according to the 

 descriptions of the known species. 



Head (top view, fig. 12) : — Frons about 2^ times as broad 

 as one eye and about 1^ times longer than broad, projecting 

 about \ its length beyond a line touching the eyes in front ; 

 eye-margins parallel, the projecting forehead narrowing a 

 little and ending in a broad pointed tooth overhanging the 



