8ABETHINTJ8 31 



a blue reflection. Clypeus moderate, tnineate at tip, convex, strongly white 

 pruinose. Antennae moderate, the joints subequal, rugose, pilose, black, second 

 joint pale at base ; tori subspherical, with a cup-shaped apical excavation, black 

 with a distinct white pruinosity around the rim; hairs long, moderate, black. 

 Eyes very large, contiguous on vertex, partly inclosing the antennae and touch- 

 ing the clypeus, brown. Occiput clothed with flat black scales with a metallic 

 green, violet, and blue reflection, two setae at vertex; cheeks silvery white. 



Prothoracic lobes large, approximate dorsally, similarly colored to mesonotum 

 but more brilliant. Mesonotum blackish brown, clothed with elliptical flat 

 scales with strong blue and green reflection, more brassy over roots of wings, 

 where there is a group of stiff black hairs ; a median dorsal stripe of dull coppery 

 scales. Scutellum trilobate, with similar vestiture to the mesonotum, but 

 brilliant brassy and silvery blue, each lobe with a tuft of bristles. Postnotum 

 elliptical, pale brown, with a median rounded carina, a small tuft of bristles 

 posteriorly; no scales. Pleurse and coxae brownish black, entirely clothed with 

 flat elliptical silvery-white scales. 



Abdomen slender, subcylindrical, truncate at tip ; dorsal vestiture black with 

 submetallic-green reflection ; venter golden-scaled, the bases of segments silvery, 

 the colors separated in a nearly straight line on the sides, the scales raised on 

 the ventral line ; tip with many black bristles. 



Wings narrow, hyaline ; petiole of second marginal cell half as long as its cell, 

 that of second posterior cell as long as its cell ; basal cross-veins slightly nearer 

 the base than the anterior cross-vein. Scales of veins moderate, narrowly ovate, 

 obliquely truncate, black, those on second vein larger and broader. Halteres 

 pale, with blackish knob. 



Legs long and slender, scales on outer third of tibise and the flrst and the 

 basal half of the second tarsal joints of the mid legs long and strongly out- 

 standing on two sides, forming paddles ; no paddles present on fore and hind 

 legs; vestiture violet blue; trochanters white; under sides of femora narrowly 

 brassy at base; paddles of mid legs black on their basal two-thirds, outer third 

 white; hind legs with apical third of tibise and base of first tarsal joint with 

 erect scales, not forming paddles. Claw formula, 0.0-0.0-0.0. 



Length : Body about 4.5 mm. ; wing 4 mm. 



We have no information upon the life history and habits of Sabethes bi- 



Island of Santo Domingo, West Indies. 



Santo Domingo, August, 1905 (A. Busck) ; Santo Domingo (F. E. Camp- 

 bell). 



We have Sabethes Mpartipes only from the island of Santo Domingo, but it 

 may yet be found in other islands. Theobald described a broken specimen that 

 seems close to this, if not the same, as the supposed male of his Sabethes nitidus 

 (Mon. Culic, ii, 347, 1901) from Brazil. Although we find no differences from 

 our species in Theobald's description, it seems very doubtful whether our form 

 extends to Brazil. It is very unusual for the same species to occur in the West 

 Indies and on the continent of South America, and we suspect that if we had 

 specimens from the mainland differences would appear. In any case, the name 

 we have applied is correct, as Theobald's nitidus is clearly founded upon the 

 female specimens before him and not upon the supposed male, really a female 

 of a species falling in another genus. 



Genus SABETHINUS Lutz. 



8aJ)etMnus Lutz in Bourroul, Mosq. do Brasil, 48, 57, 1904. 



Sahettinus Blanchard, Les Moustiques, 634, 1905. 



Satcthoides CoqulUett (in part), U. S. Dept. Agr., Bur. Bnt., Teeli. Ser. 11. 27. 1906. 



Sabethoides Dyar & Knab (not Theobald), Journ. N. Y. Ent. See, xiv, 225, 1906. 



Sabethes Dyar & Knab (in part), Journ. N. Y. Ent. See, xv, 208, 1907. 



