38 MOSQUITOES OF NOETH AMEEICA 



a lew spines at the apex; proboscis dark brown, rather swollen at the apex, minutely 

 hairy; clypeus frosty grey; basal joint of antennae frosty grey, remainder brown, 

 densely pilose, but not much more so as in the 2. joints much about the same length. 



Thorax black, with flat peacock-blue and green scales, the back of the mesonotum 

 and Bcutellum covered with large flat metallic green and bronzy scales, a tuft of dark 

 scales just in front of the root of the wing. Metanotum dark brown, almost black, 

 with four deep brown chaetBe; pleurae black, with a large patch of white scales. 



Abdomen with the basal segment metallic green, remainder brilliantly coloured 

 with green, mauve, blue, white and yellow; the colouring varies in different lights; 

 when viewed from above the abdomen is deep metallic blue with basal coppery bands; 

 when viewed laterally the abdomen is bright apple green, with basal mauve bands 

 and white basal lateral spots and yellow venter; now and then, as the sun strikes 

 the scales, red and yellow colours appear; the apex of the abdomen Is provided with 

 dense brown bristles. 



Legs metallic blue and violet or rich purple; coxae dark, with patches of white 

 scales; the legs are not provided with paddles; last three mid tarsi white 

 underneath; ungues small, equal and simple. 



Wings clothed with similar formed scales to the J; fork-cells long, the first sub- 

 marginal longer and narrower than the second posterior, its base a little the nearer 

 the base of the wing, its stem less than half its length and shorter than the stem of 

 the second posterior cell; mid cross-vein nearer the apex of the wing than the super- 

 numerary and longer, posterior cross-vein level with and longer than the mid. 



Halteres dark brown. 



Length. — 5 mm. 



(J. — ^Head clothed with metallic green and blue scales; palpi and proboscis brown. 

 Abdomen metallic blue with golden ventral and lateral patches, the patches being 

 somewhat apical. 



Legs much as in 8. remipes; the mid pair with large paddle-like masses of scales, 

 the paddle blackish, except at the apex, where it is creamy white, most of the meta- 

 tarsal portion being white, the leg itself is scaled with violet and purple scales; fore 

 and hind legs simple, the hind with the tibiae rather expanded apically; ungues small, 

 equal, and simple. The legs show brilliant colours at times. 



Wings with typical brown Sahethes scales; first submarginal cell longer and 

 narrower than the second posterior cell, its base considerably nearer the base of the 

 wing than that of the latter; the stem rather less than one-third the length of the 

 cell; stem of the second posterior cell nearly as long as the cell; supernumerary and 

 mid cross-veins practically meeting in an open angle, posterior cross-vein a little 

 longer than the mid and nearly in a line with it. 



Length. — 5 mm. 



Habitat. — Para, Brazil (Durham). 



Observations. — Described from several ?'s and a single ^ caught by Dr. Durham; 

 the cJ was unfortunately broken in mounting. 



It is clearly a distinct species easily told in the ^ by the white tipped paddle 

 and by the position of the cross-veins in both sexes, ft most nearly approaches 

 S. remipes, the mid legs of the (} only being paddled. 



Geibinal Description or Sabethoidbs confusus : 



Babethes remipes. ?. Theobald, (non Wied.) 

 Sabethes nitidus. $. Theobald. 



(Mono. Culicid. ii., 246 (remipes); 247 (nitidis).) 



5. — Head covered with flat violet, green, and deep blue scales, looking brown in 

 some lights. 



Proboscis, palpi, and antennae brown; basal joint of latter with grey sheen; clypeus 

 frosty grey. Palpi very small, apparently two-jointed, possibly a small third basal 

 joint. 



Thorax black, with flat green, peacock blue and azure blue scales, the green pre- 

 dominating, and sometimes some dusky ones over the roots of the wings (nitidus) ; 

 prothoracic lobes large, covered with flat green and azure blue scales; scutellum with 

 flat metallic green, pale blue and in some lights bronzy-hued scales; metanotum deep 

 brown to black, with four deep brown chaetse; pleurae blackish with dense silvery- 

 white flat scales. 



Abdomen deep metallic purple or violet, with brilliant mauve, pale blue, white 

 and yellow scales, the pale coloured ones on each side (fig. 187) forming more or less 

 basal spots on each side of the middle line, and a more or less distinct row beneath 

 Joining the pale scaled ventral surface. When viewed from above the abdomen seems 

 deep metallic blue, with basal coppery bands; when viewed laterally it may be apple- 

 green, with basal mauve bands and the pale basal spots referred to above; now and 

 then, as the light strikes the scales, red and yellow colours appear; the apex has 

 dense brown bristles. 



