1865.] 243 



Schizocerus plumigcra, Norton, Proe. Ent. Soc. Philad. iii, p. 7. 

 Three ? specimens. The specimens before me of this species, are 

 bright honey-yellow, sometimes saffron-yellow, especially the thorax, 

 shining; in one specimen the head is entirely black, in the other two 

 most of the cheeks, the occiput, and an obscure spot on each side of 

 the face, are saffron-yellow; the antennae are entirely black; on the 

 thorax beneath, in front of the intermediate legs, there are two large, 

 approximate, black marks ; the legs are black, the two anterior pairs 

 are tinged with piceous, with the tips of then' femora, and their tibia? 

 and tarsi more or less testaceous, especially within ; the extreme base 

 of the abdomen has two transverse fuscous marks, and the extreme tip 

 is blackish ; the wings are tinged with fuliginous, especially about the 

 base. Length 31 — 4 lines; expanse of wings 7 — 8? lines. 



2. Schizocerus abdominalis, n. sp. 



Black, polished ; prothorax and abdomen honey-yellow; wings tinged with 

 fuliginous. 



Male. — Black, polished ; face clothed with short, pale, sericeous 

 pubescence; mouth piceous; antenna? as long as the head and thorax, 

 black, the third joint pale within, furcate, and clothed with long, black 

 pubescence. Thorax smooth and polished ; prothorax honey-yellow ; 

 tegula? piceous. Wings ample, broad, tinged with fuliginous, espe- 

 cially about the base ; nervures and stigma black. Legs shining black, 

 the anterior tibia? and tarsi pale. Abdomen bright honey-yellow, with 

 two transverse spots at the extreme base, and the extreme tip, fuscous. 

 Length 3? lines; expanse of wings 7? lines. 



One specimen. This may be the % of S. plumiger. 



Genus DOSYTHEUS. Leach. 



1. Dosytheus bicolor, Beauv. 



Tenthredo bicolor, Beauv. Ins. Afriq. et Amer. p. 97, pi. 9, fig. 1. 

 Dosytheus bicolor, Norton, Proc. Bost. Soc. Nat. Hist, viii, p. 153. 

 One $ specimen. 



2. ? Dosytheus aprilis, Norton. 



Dosytheus aprilis, Norton, Proc. Bost. Soc. Nat. Hist. viii. p. 152. 

 One specimen, the legs of which are entirely black, in which respect 

 it resembles I). inxi</iiis, Norton MSS., but the color of the abdomen 

 is pale honey-yellow ; it may, however, be a variety of the latter species. 



Genus NEMATUS. Jurine. 

 1. Nematus brunneus, Norton. 

 Nematus brunneus, Norton, Proc. Ent. Soc. Philad. iii, p. 8. 

 One $ specimen. 



