Genus Quasistegomyia. 169 



with a broad white border on the apical edge ; pleurae brown, with heavy 

 bunches of white scales ; metanotum brown. 



Abdomen heavily covered with rather large flat brown iridescent 

 scales, white basal lateral spots of varying size on most of the segments 

 and four white dorsal basal spots — one on the penultimate — is lacking on 

 the antepenultimate and present on the three segments cephalad to this. 

 Yentrall y there are heavy white basal spots, so that the venter is at least 

 half white. 



Legs : coxae and trochanters light brown, white scaled ; fore femora 

 white scaled ventrally, otherwise dark brown, iridescent scales, metatarsi 

 brown, with very small basal white spot ; first tarsal segment brown with 

 small basal white spot ; second, third, and fourth segments brown ; 

 ungues small, equal and uniserrate ; mid femora dark brown with a few 

 white scales at the base, a snow white spot midway on the cephalic 

 aspect, and a white spot near the apex, which under the hand lens looks 

 like a knee spot, but the very apex is brown ; tibiae brown ; metatarsi 

 brown, with a small basal white spot, a little larger than those on the 

 fore legs ; first tarsal segment with small basal white spot, other seg- 

 ments brown ; hind femora white scaled ventrally and dor sally, except a 

 large brown dorsal spot near the apex, which however leaves the apex 

 white ; tibiae brown ; metatarsi brown, with basal white spot ; all tarsal 

 segments brown, with large basal white spots so wide as almost to include 

 the whole segment on the distal segments, but not always marked on the 

 ventral side. 



Wings clear, with brown scales, the median scales large, broadly 

 truncate and the lateral, which are about twice as long, are comparatively 

 slender and also truncate ; the ventral scales more slender ; first sub- 

 marginal cell about one-third longer than and the same width as the 

 second posterior; supernumerary cross- vein equals the mid, which it 

 meets, and the posterior cross- vein is a little longer than the mid and 

 about twice its own length distant ; halteres with light stem and dark 

 knob. 



Length, — About 5 mm. 



$ . In general the male differs little from the female ; palpi slender, 

 longer than the proboscis, brown, a small white spot at the base of the 

 ultimate, a slightly larger one at the base of penultimate, a band at base 

 of the antepenultimate segments, and another white spot nearly as wide 

 as the band, near the tarsi palpi not tufted. Ungues unequal, the larger 

 uniserrate, the smaller simple. 



Length. — 3 * 5 mm. 



Habitat. — Bulacao, Mindora Islands and Angeles, Pampanga, Luzon 

 Islands, Philippine Islands. 



Time of capture. — August at Bulacao (Dr. Gardner) ; September 

 at Angeles (Dr. Whitmore)." 



Observations. — This species was described by Miss Ludlow 

 from specimens sent by Dr. Fletcher Gardner, taken at Bulacao. 



