THEOHALD— DIPTERA, CULICID^ 



91 



Legs deep blackish-brown with bronzy sheen, coxaj and trochanters ochreous, the 

 former with black bristles ; ungues small, equal and simple. 



Wings (Text-fig. 10) with brown scales, outer costal border dark and spinose, first 

 submarginal cell shorter and slightly narrower than the second posterior cell, its base 

 nearer the apex of the wing, its stem not quite one and a half times the length of the 

 cell ; stem of the second posterior cell slightly longer than the cell ; posterior cross- vein 

 slightly longer than the mid, about half its own length distant from it ; the sixth long 

 vein bends abruptly to the costa and has only a single row of scales. 



Halteres with pale stem and ftiscous knob. 



Length. 2 "5 to 3 mm. 



t (Text-fig. 8 a). Head (Text-fig. 9 a), thorax and abdomen similar to the ?, but the 

 abdominal banding indistinct. Palpi and proboscis black, the latter slightly swollen 

 apically, not quite so much as in the $ ; palpi very short, clavate with a few black 

 bristles ; antennae plumose banded grey and brown, hairs flaxen brown, the brown area 

 of each segment nearly twice as long as the grey. 



Wings (Text-fig. 10 c) with similar scales to the ? ; fork-cells short, the first slightly 

 shorter and narrower than the second, its base 

 the nearer to the apex of the wing, its stem 

 nearly twice as long as the cell ; stem of the 

 second fork-cell about one-third longer than the 

 cell ; supernumerary cross-vein slightly angu- 

 lated, the posterioi' about the same length as 

 the mid and about its own length distant fi'om 

 it ; the first and second long veins lie close 

 together. 



Legs as in $ ; fore ungues small, equal and 

 simple, the mid unequal, simple, one curved, one 

 small and straight ; hind equal and simple, small. 



Genitalia (Plate 4, fig. 4) with short, thick 

 basal lobes, claspers long and acuminate ; setifer- 

 ous lobe dark, with some long fine hairs and a 

 single pale long sword-like bristle. 



Length. 3 '5 nun. 



Locality. Seychelles : Mahd, 1908—9. 



Observations. Described from a series of 

 16 ?s and 4 ^s. The following notes are ap- 

 pended : — " Mahe, forest behind Cascade about 

 1500 feet, IL 1909. Caught in morning flying 

 amongst dead leaves of Paiidainis horuei on 

 ground under a large group of those trees ; 



never noticed them try to bite"; " Mah(^, Jan. 1!»07, calm and wetter season. Swept 

 in daytime from low herbage at places near sea level (Anonyme Island and Ansa aux 



12—2 



B. 



C. 



Fig. 10. Pneudoficalbia pandani, nov. sp. ; a, wing 

 of ? with banded abdomen ; B, wing of 9 with 

 abdomen scarcely banded ; C, apex of ^ wing. 



