LAMB— DIPTERA : LONCH^ID^, SAPROMYZID^, EPHYDRID^, ETC. 313 



Two fronto-orbital bristles, verticals, post-verticals a little below vertex on back of head, 

 ocellars. Antennge : first two joints dark brown, third paler; arista pale with fine 

 pubescence. 



Thorax. Black-brown variegated with ochreous patches. Dorso-central bristles 

 (1-1-3) each standing on a black spot in the ochreous patch. Pleurae black-brown with 

 ochreous-grey patches, the bristles standing on small black spots on the grey patches. 

 Scutellum as thorax with a pale terminal and two side spots. 



Wings variegated as in Fig. 6 ; darkened between costa and fourth vein, a white 

 spot behind auxiliary vein, three (the middle smallest) between the costa and first 

 vein, two between first and second, two rows of small spots between third and 

 fourth, a spot in front of cross-vein; tip between second and third white. Between 

 the fourth vein and the margin the wing is marked like that of a Tephritid. 



Halters black. 



Legs : femora all ringed with two black and two ochreous rings, beginning with a 

 proximal black ring; tibiae yellow with an indistinct ring proximally. Tarsi all yellow. 



Fig. 6. Sapromyza perpunetata, n. sp., wing. 



Front femora with the usual backwardly-directed top row of bristles and an underneath 

 row, the latter long. The middle tibite have a fine terminal spine in addition to the 

 preapical bristle. 



Abdomen. Brownish-black like the thorax. On each distal and proximal margin 

 is a central triangular pale spot, the proximal ones being the larger ; the apices of these 

 meet in the case of the second segment and nearly meet in the others, hence this row of 

 spots forms an interrupted median line: on the distal margin of each segment there is also 

 a row of pale circular spots three each side on the second segment, two each side on 

 the third, fourth and fifth ; each pale spot has a black central dot from which proceeds 

 a marginal bristle. There are also a few other minute dots near the proximal margin of 

 the segments and on the disc of the same. 



Size, excluding antennae, 2f mm. 



Locality. Seychelles. Mahe: Cascade Estate, about 1000 ft., 1909. 



Sub-gen. HoMONEURA, De Meijere. 



Homoneura De Meijere, Tijdschr. voor Entom., li. (1908), p. 142. 



Three species belong to this sub-genus, but none of them fit in with the cha- 

 racters in the table given by De Meijere {I.e.), nor with any hitherto published descrip- 

 tions. 



40—2 



