151 



$ Color black; antennse slender and suddenly enlarged into a club, 

 third joint very long ; dark piceous, fourth and fifth segments piceous ; 

 labrum smooth, produced, with a ridge in the centre and on each side ; 

 palpi obscure ; head and body and the femora aboye, covered with 

 long whitish hair, which is black upon vertex and cheeks ; apical 

 segment of abdomen piceous ; legs black ; tibiae and tarsi testaceous ; 

 femora incrassate beneath ; a blunt spine on each side of four posterior 

 femora beneath, near the apex ; wings smoky, transparent ; anterior 

 pair darker at tip ; nervures testaceous ; stigma black. Hab. Hyannis, 

 Cape Cod, Mass. 



Two specimens examined ; one sent me by Mr. Scudder, and the 

 other in the Harris collection. 



Zarea. 



Z. iXFLATA, (n. sp.) Head and thorax greenish-black; abdomen 

 blue-black, obovate ; apex of basal membrane whitish. (Long. 0.48, 

 Ex. alar. 0.90 in.) 



? . Head and thorax greenish-black, with a metallic hue ; antennse 

 black, the apical joints piceous beneath, club truncate ; head much 

 narrower than thorax, coarsely punctured ; ocelli blue-black ; palpi 

 pale ; head, prothorax, and pleura covered with whitish hair ; collar 

 and abdomen blue-black ; two narrow transverse white lines back of 

 scutellum : metatliorax at base and apical half of basal membrane 

 pale luteous ; abdomen short, ovate, flattened segments distinct, each 

 of a greenish hue upon thp summit ; each of the five apical segments 

 having in the middle a glaucous band of pale, fine hair ; the first two 

 segments of abdomen beneath, and the legs testaceous ; coxas at base, 

 and a band in middle of femora black ; nails dark ; wings hyaline, 

 nervures and stigma piceous; apex of superior wings and a broad 

 band about the stigma fuscous. Hab. Farmington, Conn. 



One specimen taken. It bears a close resemblance to Z. fasciata of 

 Europe. 



Sub-family Tenthredinides. 

 DosYTHEUs, Leach. 



Antennae, nine-jointed, filiform, third joint longer than the fourth ; 

 clypeus notched; body moderately long; superior wings, with two 

 marginal and three submarginal cells, the first very short and 

 rounded ; second, longest, receiving three recurrent nervures ; the 

 lanceolate cell below the submedial, with an oblique cross vein ; in- 

 ferior wings with two middle cells. 



" Larvae, with twenty-two legs j^ not ejecting a fluid from the sides 

 of the body." " The larvae of certain species are covered with a 

 woolly or powdery coating." (St. Farg. Mon. Tenth.) 



