1865.] 187 



Coelioxys producta, n. sp. 



Black, polished, varied with white pubescence; wings fuliginous, subviola- 

 ceous, hyaline at base ; legs dull rufous. 



Female. — Deep black, polished ; head rather closely and deeply 

 punctured, the punctures very sparse on the vertex and between the 

 antennae, thinly clothed with short pale pubescence, that on the cheeks 

 dense and silvery; face depressed on each side ; occiput fringed with 

 whitish pubescence ; antennae piceous-black. Thorax deeply and rather 

 closely punctured, the rnesothorax sparsely puuctured especially on the 

 disk; lateral anterior margin of the mesothorax, the anterior and pos- 

 terior margins of the pleura, a spot on the tegulae, and two spots in front 

 of the scutellum, of dense white pubescence; scutellum flattened, the 

 disk impunctured, the posterior margin sharp, the middle produced, 

 obtusely pointed and slightly recurved, the lateral teeth long, slightly 

 diverging, with the point obtuse and slightly bent downward and in- 

 ward ; metathorax clothed, especially on the sides, with long whitish 

 pubescence; tegulae black, smooth and polished. Wings with their 

 basal half hyaline, the remainder fuliginous, especially the costal and 

 apical margins, and with a slight violaceous reflection ; nervures black. 

 Legs, excepting the coxae, dark rufous, punctured, clothed with whit- 

 ish pubescence, which is dense on the femora and tibiae beneath. Ab- 

 domen elongate, conical, polished, deeply and rather closely punctured 

 on the sides, especially the basal segment, very sparse and scattered on 

 the disk ; sides of the second and three following segments with the 

 anterior half much depressed, leaving the posterior half elevated and 

 sparsely punctured; apical margins of the first five segments fringed 

 with silvery-white pubescence, very narrow on the middle and gradu- 

 ally broader on the sides; apical segment rather long, sublanceolate, 

 finely punctured, polished, the apical third depressed, coarsely sculp- 

 tured, rather suddenly narrowed, with the apex rounded and obtuse; 

 venter deeply and sparsely punctured, the apex more closely punctured, 

 the inferior plate slightly longer than the superior, sublanceolate, rather 

 suddenly narrowed towards the tip which is emarginate on each side, 

 making the extreme tip subacutely pointed with a small subacute angle 

 on each side of it. Length 6 lines ; expanse of wings 10 lines. 

 Collection. — Ent. Soc. Philad. One specimen. 



Larger than G rufipes, from which it is at once separated by the 

 more sparse punctation, the nearly smooth mesothorax, the different 

 shape of the anal plates of the abdomen and the different coloring of 

 the wings. 



