626 A Monograph of Culicidae. 



(central) bristles to the - mid lobe ; metanotum nude, black ; 

 pleurae brown with flat silvery white scales. 



Abdomen black, unhanded; venter silvery white; apex 

 bristly. 



Legs uniformly brown, with ochreous sheen in certain lights : 

 ungues small, equal, and simple. 



Wings with typical brown Culex scales; the first sub- 

 marginal cell longer and very slightly narrower than the second 

 posterior cell, its base a little nearer the base of the wing, 

 its stem about one-third the length of the cell, stem of the 



Fig. 292. 

 Polylepidomyia argenteiventris. Theobald. 



second posterior about one-half the length of the cell ; posterior 

 cross-vein rather more than three times its own length distant 

 from the mid ; the lateral vein scales are rather long, especially 

 on the basal part of the second and fourth veins. 



Halteres with testaceous stem and fuscous knob with some 

 pallid scales. 



Length. — 3 * 5 to 4 mm. 



Habitat. — Paumomu River, New Guinea (Loria, ix.-xii., 1892). 



Observations. — Described from five 9 's. It is easily identified 

 by thoracic scales, black abdomen with silvery venter. It is 

 subject to considerable variation in size, and in apparently the 

 relative length of the palpi and proboscis, also in the relative 

 distance of the posterior cross-vein and mid cross- vein. The type 

 is in the National Museum of Hungary, Budapest. 



