210 J. L. LECONTE, M. D. 



MYODITES Latr. 

 The European Myodites suhdlpterus is parasitic oa Halictus. As 

 that genus is well represented in oar fauna, a careful quest in its cells 

 at the proper season would probably result in the procuring of a good 

 supply of the species here described. Several of them are now repre- 

 sented by single specimens, and larger series are needed of all. 



Abdomen yellow; (9; %''■); first joint of hind tarsi elevated, obliquely trun- 

 cate and emarginate at tip; elytra yellow, shining 2. 



Abdomen black ( % 9 ) 3- 



2. — First joint of hind tarsi stout and thick, not more than one-half longer than 

 second; prothorax brownish, nearly smooth; vertex obtusely rounded, 



sparsely punctured; 7.3 mm.; Kansas 1. Popenoi n. sp. 



First joint of hind tarsi long, thicker than the second, and more than twice 

 as long ; prothorax nearly smooth ; vertex sparsely punctured not carinate ; 



7.5 mm.; Md 2. seniiflavus Lee. 



First joint of hind tarsi long, very little thicker than second; prothorax 

 and vertex densely punctulate, the latter carinate; 8 mm.; Indian Terr. 



3. scaber Lee. 



3. — Elytra shining, yellow or black only at the base 4. 



Elytra alutaceous, more or less blackish or piceous; first joint of hind tarsi 



long, but slightly thicker, not obliquely truncate 6. 



4. — First joint of hind tarsi stout, not more than one-half longer than the 

 second, obliquely truncate and emarginate at tip; elytra yellow; pro- 

 thorax sparsely punctured, smooth each side in front; 6 mm.; N. Y. 



4. luteipennis Lee. 

 First joint of hind tarsi long, somewhat thicker than the second, obliquely 

 truucate and emarginate at tip; elytra yellow; prothorax sparsely punc- 

 tured behind, nearly smooth in front; 5 mm.; Nev...5. neTadicas n.sp. 

 First joint of hind tarsi long, scarcely thicker than the second, not obliquely 



truncate at tip; head and prothorax densely puuctulate 5. 



5.— Elytra entirely yellow; 5 mm.; Gala 6. calirornicus n. sp. 



Elytra black at base; 6 mm.; Penn.; Ill 7. fasciatus Say. 



6. — Hind tibise slightly compressed , 7. 



Hind tibiae strongly compressed; black, with a small common dull testa- 

 ceous elytral spot; 6 mm.; Fla S. Scliwarzi n. sp. 



7. — Vertexstrongly elevated and compressed; 6.5 mm.; N.Y...9. Zescllii n.sp. 



Vertex feebly elevated S. 



8. — Pectus and abdomen very densely punctured; 5 mm.; 111.; N. Y. 



10. Walshii Lee. 



Pectus and abdomen more strongly less densely punctured; 2.5 — 3 mm.; 



Can.; -^.Y.; D. C 11. stylopides Newm. 



M. Popenoi. — Honey yellow, head, sides, front and dorsal line of pro- 

 thorax black, middle and sides of metasternum, and hind coxse blackish. 

 Head shining, sparsely finely punctured, vertex prominent, obtusely rounded. 

 Prothorax and elytra smooth. Metathorax blackish. Under surface shining 

 very finely and sparsely punctulate. First joint of hind tarsi thick, as long as 

 Ihe two following united, obliquely truncate at tip, slightly emarginate be- 

 neath. Length 7.3 mm. 



