2(38 Mr. 0. G. Lamb oii Exotic Heloniyzklse, &c. 



tibia with a distal anterior row of 3; mid tibia with crown 

 of about 4, tlie inner very lono- ; hind femur with irregular 

 rows anteriorly totallino- 10 to 12 bristles ; all tibise with usual 

 preapicals, hind ones with small inner spur. 



Abdomen pitcliy black, except at the scutellar angles of 

 the first segment ; hypopygium not Large, very hairy. 



Size 8^ mm. 



British E. Africa: Kenia Forest (7. /. Anderson, Imp. 

 Bur. Ent.). 



The following species are of the normal European form, 

 with well-marked upper vertical patches and ocellar triangle, 

 and with simple legs. Ijoth belong to the section with long- 

 liiiired arista and quite bare mesopleura. 



Helomyza balteata, sp. n. 



Head (top view) : — Frons dullishorange and hairy, brighter 

 and bare in narrow lines on each side of the ocellar triangle 

 and along a mid line to the front ; the upper vertical patches 

 and the ocellar triangle sharply bounded, grey, the former 

 with a pointed tip and only touching eyes just on vertex ; 

 hind head orange, with well-marked trapezoidal spot from 

 neck to vertex; all bristles normal. Face smooth, orange. 

 Side view : — Eyes rather elongate-oval, with the long axis 

 in the line joining outer vertical to the protuberant mouth- 

 angle ; the latter is covered with a large dark patch, the rest 

 of face &c. being orange ; antenna orange, arista black, with 

 long and strong pectination, stout slightly orange basal joints ; 

 long vibrissa with a small companion below; depth of jowl 

 about equal to breadth of third joint ; hind head orange and 

 bristly. Palpi orange, with slightly infuscate tip ; tongue 

 orange. 



Thorax : dorsum almost uniformly dull ochreous brown, 

 the tiny black bristles looking like a close regular pui)ctation ; 

 a very faint pair of median lines between the d. c. bristles, 

 which stand on browni spots ; callus grey ; scutellura as thorax, 

 but a little paler centrally on disc and on the absolute tip, 

 quite bare and flat, with a few tiny hairs between main 

 bristles ; pleura orange above, merging to yellow below, 

 dull; mesopleura quite bare; metanotum dark, somewhat 

 shining orange. 



Wing with about nine stout spines from end of vein 1 to 

 about level of hind cross-vein ; suffused, the darkening being 

 more intense from costa to just over second vein ; both cross- 



