Genus Mansonia. 495 



9 . Head brown with narrow-curved silvery grey scales, 

 dense along the borders of the eyes, flat grey lateral ones and 

 numerous black upright forked scales ; palpi testaceous with 

 brown scales and snowy white apex ; clypeus bright brown ; 

 proboscis brown scaled, the middle with a broad yellow scaled 

 band and a few pale scales at the apex ; antennae deep brown, 

 with narrow pale bands at the verticels, basal segment bright 

 ochreous, second segment less so, with black scales ; the frons 

 distinctly produced between the antennae as in Bmichomyia. 



Thorax deep brown with small narrow-curved rich bright 

 brown scales, with three silvery white scaled spots in front near 

 the neck and two lateral pairs behind, there are also scattered 

 silvery scales over and behind the roots of the wings and around 

 the bare space in front of the scutellum, bristles dense deep 

 brown and black • scutellum brown, the mid lobe very large and 

 prominent, densely clothed with narrow-curved dull silvery 

 scales, border-bristles long, black, six to the mid lobe ; metanotum 

 deep brown ; pleurae brown with a patch of flat silvery white 

 scales. 



Abdomen deep brown, the two basal segments with median 

 yellow scaled spots, apical lateral silvery white spots to the 

 segments which, on the last two, spread out on to the dorsum, so 

 that more of the surface is white scaled ; posterior border-bristles 

 golden brown ; venter with the segments basally ochreous, white 

 apically. 



Legs brown, spotted and banded with white as follows : — Fore 

 femora with five white spots on one side, two on the other, apex 

 white, base yellowish, fore tibiae with five white spots and a 

 broad yellow apex ; first tarsal with a median white spot, second 

 and third tarsals with a dorsal basal white spot, last two segments 

 ochreous brown, unspotted • mid femora and tibiae the same, and 

 also the tarsals ; hind similar but with traces of pale basal spots 

 on all the tarsals ; ungues equal and simple. 



Wings with brown and yellow scales ; fork-cells long, the 

 first sub-marginal a little longer and slightly narrower than the 

 second posterior, its base a little nearer the apex of the wing, 

 its stem more than half the length of the cell, stem of the 

 second posterior cell more than half the length of the cell ; 

 posterior cross-vein nearly three times its length distant from the 

 mid ; border scales small (not Mansonia-like) . 

 Length. — 4*5 mm. 

 Habitat. — Frieclrich-Wilhelmshafen, New Guinea (Biro, 1901). 



