NORTH AMERICAN TETRASTICHUS — BURKS 605 



The types of this species, three females from Hudson Bay, Canada 

 (Barnstone) , were in the British Museum in 1938. Dr. Ferriere fur- 

 nished these notes : "Hindwings acute at apex. Propodemn very finely 

 shagreened, almost smooth ; median carina weak and short ; no carina 

 between it and the spiracles." 



TETRASTICH US HAEMON Walker 



Tetrastichus haemon Walker, Ann. Mag. Nat. Hist., vol. 20, p. 28, 1847. 



Howard, U. S. Bur. Ent. Bull. 5, p. 47, 1885 [laemon].— Ckesson, Synopsis of 

 families and genera of Hymenoptera . . ., p. 245, 1887. 



The types, three females and a male from Florida, were in the 

 British Museum in 1938. Dr. Ferriere was at that time of the opinion 

 that the species should be placed in Horismenus, as the mesopraescutum 

 has no median furrow, and the mesoscutellum has a median furrow. 



TETRASTICHUS MICROCOSMUS Girault 



Tetrastichus microcosmus Girauet, Descriptiones stellarum novarum, p. 22, 1917 

 (new name for T. granulatus Aslimead, preoccupied). 



This name probably was proposed to be applied to Aprostocetus 

 granulatus Ashmead at a time when Girault considered Aprostocetus 

 and Tetrastichus not generically distinct. In no published work, 

 however, have these two genera been combined, and I do not consider 

 them synonymous. 



TETRASTICHUS SAUNDERSII (Packard) 



Eulophus saundcrsii Packard, Proc. Boston Soc. Nat. Hist, vol. 21, p. 34, 1881; 



Howard, U. S. Bur. Ent. Bull. 5, p. 46, 1885. — Cresson, Synopsis of families 



and genera of Hymenoptera, . . ., p. 244, p. 1887. 

 Tetrastichus sauudersi (Packard) Howard, in Scudder, Butterflies of Easi>>ni 



United States, p. 1893. 1889— Viereck, Connecticut State Geol. and Nat. Hist. 



Surv. Bull. 22, p. 454, 1916. 



The type, a male bred from a Thecla pupa, is in the Museum of 

 Comparative Zoology. 



TETRASTICHUS SEMIDEAE (Packard) 



Eulophus semideae Packard, Proc. Boston Soc. Nat. Hist., vol. 21, p. 35, 1881. — 



Howard, TJ. S. Bur. Ent. Bull. 5, p. 46, 1885.— Cresson, Synopsis of families 



and genera of Hymenoptera, . . ., p. 244, 1887. 

 Tetrastichus semideae (Packard) Howard, in Scudder, Butterflies of Eastern 



United States, p. 1893, 1889.— Viereck, Connecticut State Geol. ami Nat. 



Hist. Survey Bull. 22, p. 453, 1916. 



The types, male and female, are in the Museum of Comparative 

 Zoology. These type specimens were reared from pupae of the White 

 Mountain butterfly, Oeneis semidea (Say), in New Hampshire. 



