ls(U.] 11 



%. The abdomen quite slender, a black spot on labnmi, which is pale: a 

 white line down all the coxae and the four anterior legs, a lengthened wedge- 

 like spot on posterior tibiee above and a similar line on first tarsal joint: re- 

 maining joints white at base. 



Massachusetts (Coll. Ent. Soc. Phila.) ; Connecticut. 



The wino's of those from Connecticut are of a lio'ht color. This is 

 the Macrophi/a epinotus, Var. h. previously described. 



21. Macrophya zonalis. n. sp. 



Black, the tips of antenure, mouth, collar, scutel. V spot, 3 spots on pleura, a 

 band on each segment of abdomen and the legs in part, white. (L(nig 0.44. 

 Br. wings 0.92 in.) 



9. Shining black, ord joint of anteuuEB nearly as long as 4th and .ath, the 

 apex of the 5th and the four apical joints white, the extreme tip brown ; head 

 wide, polished,, having obsolete punctures, strongly depressed at sides of ocelli ; 

 nasus slightly incurved, labruni conical, its form almost truncate; a spot above 

 ocelli, a dot below anteunse, nasus and mouth below, collar, a V on front lobe of 

 mesothorax, an annulus at the base of each segment, enlarged at the sides be- 

 neath, a spot below the anterior, a cross stripe below posterior wings, and a tri- 

 angular spot in middle of pleura, white; legs black, the two anterior pair and the 

 posterior femora white beneath, a large white spot on posterior coxfe ; the four 

 ajjical tarsi on the four anterior legs white, their tijss black ; posterior tarsi 

 black, their first joint nearly as long as all the rest, wings faintly clouded on 

 their apical half, nervures blackish. 



Massachusetts. (Coll. Ent. Soc. Philad.) One specimen. 



Genus TENTHREDO. 



22. Tenthredo pectoralis, n. sp. 



Black: the face, tegulaj, collar, most of body beneath and legs, white. (Long 

 0.36. Br. wings 0.72.) 



%. Color shining black; autennoB hardly longer than to first segment of ab- 

 domen, not stout, 3rd joint one-half longer than 4th ; head polished : an en- 

 closed oval space below lower ocellus; nasus emarginate, labrum roundeil 

 before; thorax dull with sjjarse punctures; nasus. mouth beneath, cheeks, a 

 spot above the base of each of antenufe, tegulse, collar, and the whole of body 

 beneath, white ; upjier edge of pleura and a large semicircular line on jiectus 

 between 1st and 2nd pair of legs, black ; legs black above and white beneath, 

 coxse mostly white, sjjurs long; wings faintly clouded on the apical half, ner- 

 vures blackish. 



Rocky Mountains, Col. Ter. (Coll. Ent. Soc. Philad.) 



The antennee are shorter than in any species that I have seen and 



are like those of Macrophya. The antennae of the three following 



species are a little longer, but yet shorter than in most other species. 



The four species seem allied in their general form and markings, so as 



to form a separate group from other species. 



