AMERICAN HYMENOPTERA. 47 



four and five above, yellowish-red; antennae moderately long, covered with a 

 rather dense short pubescence, yellow except a large spot on first joint above 

 which is whitish at tip and clothed with a longer pubescence than on the other 

 joints; third joint as long as the three following combined; legs pubescent, 

 yellowish-red except a spot of more or less extent on coxae; vertex roughened, 

 shining; wings hyaline, the anterior pair each with a median transverse pale 

 smoky band, stigma black with white spot at base, nervures black, pale at base, 

 second branchial cell with incomplete cross-nervure." 



Hah, — Canada, (Coll. V. A. Huart). 



lijda Bnrqaei Provancher, Nat. Can. x, 204. — "9. — Length .36 inch. — 

 Black; mandibles except tips, anterior margin of clypeus, a median scutati- 

 form spot enclosing a black dot above antennae, four longitudinal lines on 

 vertex, the two outer ones dilated at their extremities, a spot on the cheeks, 

 tegulse, two triangular spots united at base on middle lobe of mesothorai, 

 scutellum, postscutellum, legs and tips of cox£e, white; antennae long, seta- 

 ceous, serrate beneath, third joint a little longer than the fourth; vertex 

 polished, the longitudinal grooves rather deep; ventral segments narrowly 

 margined at tip with white; dorsal segments 2 — 4 each with a median reddish 

 spot; wings hyaline, nervures black, second branchial cell with incomplete 

 cross-nervure." 



Hah. — Canada, (Coll. Provancher). 



Cephas 4-gattatas "Westwood, Thesaurus Ent. Oxon. p. Ill, pi. 20, fig. 

 11. — " Black, shining, mesothorax punctured, metathorax bicarinate; the four 

 basal segments of abdomen and the legs, fulvo-testaceous; wings hyaline, the 

 anterior pair with the stigma and two spots at tip, black; head convex and 

 glossy, with a sinuated transverse ridge above antennae; labrum short, tri- 

 angular, deeply emarginate in middle of anterior margin; mandibles triden- 

 tate, upper tooth much larger than the others; maxillae with two large flat 

 membraneous lobes; maxillary palpi six-jointed, the joints irregular, fifth 

 very short, oblique, sixth affixed close to base of preceding joint; labial palpi 

 four-jointed, the last oval and about the size of basal joint; antennae black and 

 slender, (broken off beyond joint twenty-two); abdomen of moderate length; 

 wings large and hyaline, with an oval spot at tip within fourth submarginal 

 cell and a smaller round one in middle of outer middle cell; hind pair of tibiae 

 with two apical and two middle spurs, middle tibiae with only one middle spur ; 

 tarsal claws with a broad basal tooth. Length 4i lines." 



Hah. — Massachusetts, (Mus. Oxford University). This will proba- 

 bly prove to be the 9 of himaculatus Norton. 



Cephiis bicinctns Provancher, (Phyllsecus), Nat. Can. vii, 375 ; x. 207. — 

 "5. — Length .60 inch. — Black; a spot beneath the eyes, another smaller one 

 on each side of vertex, a spot on sides of metathorax beneath posterior wings, 

 and a band at summit of segments three and five of abdomen, white ; labrum 

 elongate, black; antennae black, rather short, the joints numerous, thickened 

 beyond the fifth ; prothorax elongate, concave in front, depressed, subangulate 

 at the sides, entirely black; scutellum elongate, ovate, even, punctured only; 

 wings hyaline, slightly obscure, nervures black; two radial cells, the first 

 small, second cubital shorter than the first, with an opaque dot towards the 



