Vol. XXviii] ENTOMOLOGICAL NEWS 209 



Two new Syrphidae (Diptera) from Eastern North 



America. 



By C. L. Metcalf, Ohio State University, Columbus. 



(Plate XVI). 

 Cinxia* carolinensis new species (Plate XVI, figs. A, B, C, D). 



At once distiuguishcd from the described North American 

 species in lacking the black facial stripe and in having but a 

 single fascia, or pair of spots, on the abdomen. 



$. Length 10 to 11 mm. Vertex black, but little shining, with 

 dusky yellow pile much lighter on the occiput. The eyes contiguous 

 or nearly so for about the length of the vertical triangle. Frontal 

 triangle densely whitish yellow pollinose, except for a shining black 

 lunule above the base of the antennae and a very slender, median, 

 impressed line. In some lights the blackish ground color shows 

 through, especially next the eyes. The front covered with very deli- 

 cate, silvery pile which continues down the sides of the face, gradually 

 thinning on anterior orbits to the lower corner of the eye. Face yel- 

 low; whitish yellow pollinose like the frons, except for a broad glab- 

 rous band over the tubercle, but not reaching the base of the an- 

 tennae, which is shining waxy yellow. Cheeks (jowls) brownish black 

 with moderate pale pile and a broad contiguous band in front of the 

 jowls from eye to oral margin deep shining black, bare. Anterior 

 mouth edge narrowly blackened. 



Face in profile (Plate XVI, Fig. B) much produced downward and 

 forward, more than usually concave below the antennae and with a 

 prominent tubercle about equalling the frontal prominence; abruptly 

 constricted below the tubercle and thence straight to oral margin. 

 Lower mouth edge convex, forming with the plane of the occiput an 

 angle of about 130°. Posterior orbits somewhat inflated below, whit- 

 ii^h pollinose, and with delicate pale pile. Proboscis and palpi en- 

 tirely brownish black, about as long as the depth of the eye. 



Antennae brownish yellow, the first two joints darker, the third joint 

 subquadrate, with angles much rounded, a fifth deeper than its length 

 on the inner side beyond second joint. The arista two and one-half 

 times this length, basal, reddish yellow, plumose, with about a dozen 

 rays on the upper side not extending to the tip and two-thirds as many 

 below, the latter wanting on the basal third and at the tip. 



Mesonotum moderately shining bronze black, with thick but delicate 

 yellow pile, humeri whitish pollinose. The scutellum obscure reddish 

 brown to black with similar pile. Pleurae shining black with thinner 

 pile. A small indistinct brownish yellow spot on the upper sterno- 



*Cinxia Meigen (1800)— Sericomyia Meigen (1803). 



