THEOBALD— DIPTERA, CULICID^ 



93 



Legs black with bronzy reflections and with golden bristles ; ungues small. 



Wings (Text-fig. 11) with typical large brown Miraomyian scales, costa dark, spiny; 

 first submarginal cell not quite as long and narrower than the second posterior cell, its 

 stem not quite twice as long as the cell, base of the cell nearer the apex of the wing than 

 that of the second posterior cell, stem of the latter slightly longer than the cell ; posterior 

 cross-vein rather more than its own length distant from the mid cross-vein ; sixth vein 

 abruptly bent at the apex which is devoid of scales, from the bend scales project outwards. 



Halteres with pale stem and black knob. 



Length. 3 mm. 



Locality. Seychelles: Silhouette, 1908. 



Observations. Described from a single perfect ?, taken in highest damp forests 

 (over 2000 ft.), 29. VII. 1908, found sitting in Nepenthes pitcher which contained Culicid 

 larvae. It is a very marked black and ochreous species, with large black thin thoracic 

 scales and slightly longer fork-cells than in the previous species. The larvae described here 

 taken from the pitchers o^ Nepenthes upon which the adult was caught may belong to this 

 species. 



Larva (Text-fig. 12 a) 4 to 4"5 mm. long. Head (Plate 4, fig. 6 a) longer than broad ; 

 antennae (Plate 4, fig. 6 c) rather short 

 and thick, of two segments, ending in 

 three rather broad spines with tapering 

 apices and a small foliate plate ; labial 

 plate (Plate 4, fig. 6 b) nearly twice 

 as long as broad ; frontal prominence 

 (Plate 4, fig. 6 d) with two short, 

 broad acuminate processes and two long 

 chsetse projecting forwards behind them ; 

 mandibles (Plate 4, fig. 6 c) serrated as 

 shown in figure. 



Thorax broader than the head, but 

 only a little longer, with a pair of long 

 dark bristles on each side in front, 

 followed by two groups of three bristles 

 on each side, three lateral tufts arising 

 from a distinct prominence, also chaetae 

 on the dorsum. The first two abdominal 

 segments have each a pair of long dark 

 chaetae laterally, the third to sixth a 

 single dark chaeta on each side, seventh 

 and eighth apparently nude ; siplion (Plate 4, fig. 5 a) very short and thick, no longer 

 than the terminal segment (Plate 4, fig. 5 b) which has two tufts of long brown hairs and 

 two pairs of globular processes. 



Pupa (Text-fig. 12 b), 4 mm. Siphons rather short of marked form {vide figure), 



Fig. 1 2. Pseudqficalbia nepenthes, nov. sp. ; a, larva ; 

 B, pupa. 



