HYMENOPTERA. 123 



Kirbya tricincta, St. Farg. Hym. ii. 145. 1 !! 



Nyland. Ap. Boreal. Act. Soc. Sc. Fenn. ii. Supp. ? , 102. 

 Hob. Britain; France; Germany; Sweden; Denmark; Finland. 



3. ClLISSA MELANURA. 



Cilissa melanura, Nyland. Ap. Boreal. Act. Soc.Sc. Fenn. p. 101 ; 



Revis. Ap. Boreal, p. 268. 2. 

 Hab. Finland ; Gothland. 



4. CILISSA AMERICANA, n. s. B.M. 



Female. Length 5 lines. Black, the face thinly covered 

 with griseous pubescence ; the clypeus is minutely punctured, in- 

 terspersed with larger punctures, and has a central longitudinal 

 smooth line, the flagellum of the antennae rufo-testaceous be- 

 neath. Thorax, the disk closely covered with shallow punctures, 

 and clothed with ochraceous pubescence, at the sides and beneath 

 it is pale ; wings subhyaline, the tegulae and nervures rufo-testa- 

 ceous, the legs beneath fringed with pale hairs, on the scopa 

 above it is pale fuscous, apical joints of the tarsi ferruginous. 

 Abdomen closely punctured, margins of the segments testaceous 

 and having a fascia of pale pubescence ; the anal fimbria fuscous. 

 Hab. United States. (E. Doubleday, Esq.) 



Genus 29. MEGACILISSA, n. g. 

 Megacilissa, F. Smith's MSS. (Details, Plate IV.) 



Head transverse, ocelli placed in a triangle on the vertex, 

 eyes lateral, oblong; mandiMes stout, slightly curved, deeply 

 grooved exteriorly, and having three teeth at the apex; the 

 labrum produced, somewhat ovate in front, and much swollen 

 above at its base ; the labial palpi four-jointed, the joints short 

 and thick, the basal joint as long as the two following, the 

 latter as well as the apical joint of equal length ; at the apex of 

 the mentum the paraglossae are produced parallel with it, densely 

 pubescent ; labium folded. Maxillary palpi six-jointed, the basal 

 joint as long as the two following, the three apical ones of equal 

 length, nearly as long as the basal one ; anterior wings having 

 one marginal and three submarginal cells, the marginal cell nar- 

 row, elongate, and truncate at the apex*; the first submarginal 

 cell as long as the two following, the first recurrent nervure uni- 

 ting with the first transverse cubital nervure. The outer spine 

 at the base of the posterior tibiae serrate. Abdomen broad at 



