156 Annals of the South African Museum. 



This is a well-defined species and, as indicated by Bergroth, related 

 to the Nearctic L. luteipennis, et al. ; the bright yellow colour of the 

 first flagellar segment of the antennae is a conspicuous character. 

 The male specimen offers the following measurements : Length 8'5 mm. : 

 wing 8-8 - 4 mm. The venation is shown on Plate XI, fig. 20. 



? LlMNOPHILA DUBIOSA, Sp. 11. 



Antennae of the male elongated, the flagellum bicolorous ; wings 

 with a heavy brown pattern, with about seven larger blotches along 

 the costal margin ; cell M-^ absent ; a strong supernumerary cross-vein 

 in cell M. 



Male. Length 6'5 mm. ; wing 7'4 mm. 



Rostrum and palpi black. Antennae very elongate, but six flagellar 

 .segments remain and the entire organ must be nearly as long as the 

 wing ; scape dark brown ; flagellar segments with the basal half 

 brownish-black, the apical half dull yellow ; scapal segments large, 

 the first segment elongate, the second segment very short, much 

 broader than long ; flagellar segments abruptly narrower than the 

 scape, elongate-cylindrical, without bristles, but with abundant 

 elongate pale outstretched hairs. Eyes small with coarse ommatidia ; 

 space between the eyes very broad. Head discoloured, dark brown. 



Thorax dull dark brown, any bloom destroyed by discoloration of 

 the type. Pleura dark brown. Halteres elongate, dull brownish- 

 yellow, the knobs brownish. Legs with the coxae and trochanters dark 

 brown ; remainder of the legs broken. Wings pale yellowish-white 

 with a heavy brown pattern, consisting of about seven larger dark brown 

 blotches along the costa, the first at the wing-base, the third at the 

 origin of the sector, the fourth at the tip of Sc^ the fifth, largest, at 

 the tip of R^, the sixth at the tip of R. 2 ; the remainder of the wing 

 is densely spotted and clouded with a paler shade of brown ; veins 

 dark brown, in the paler areas more yellowish. Venation, Sc rather 

 short, ending just before the fork of Rg ; Sc 2 at the tip of Scj ; Rs 

 elongate, arcuated at its origin ; -Bo + s rather long, almost in a line 

 with Rs ; R 2 and R K divergent, widely separated at the wing- margin ; 

 basal deflection of -R 4 + 5 nearer the base of the wings than the r-m 

 cross-vein ; cell M l absent ; basal deflection of Cu-^ under the middle 

 of cell \st .Mo ; a strong supernumerary cross-vein in cell M, this vein 

 slightly subsinuate in its course. 



Abdomen dark brown, discoloured. 



Habitat. South Africa. 



Holotype, <$ , Stellenbosch, near Cape Town, Cape Colony. 



Type in the South African Museum. 



