4 AMERICAN HYMENOPTERA. 



Tribe Ophionini Forst. 



Ophionoidse Forster, Verb. Nat. Ver. Pr. Rheinl., 25, pp. 141, 



149; Fam. 7 1868. 



? Ophioninae Cameron, Biol. Centr. Amer., Hym., I, pp. 288 1886. 



Ophionidae Thomson, Opusc. Ent., XI, p. 1047, Fam 1887. 



Ophioninae Cresson, Syn. Hym. N. A., p. 43, Subfam 1887. 



Ophionini Ashmead, Proc. Ent. Soc. Wash., Ill, p. 277, Tribe 



VII 1894. 



Davis, Trans. Amer. Ent. Soc, XXIV, p. 195, Tribe .1897. 



" Ashmead, Trans. Ent. Soc. Lond., p. 354, Tribe II 1900. 



Smith's Ins. N. J., p. 580, Tribe II 1900. 



Proc. U. S. Nat. Mus., No. 1206, pp. 84, 86, 

 Tribe II (Vol. 23) . Classification of Ichneu- 

 mon Flies 1900. 



" " Faun. Hawaiensis, Vol. I, part III, p. 341, 



Tribe II 1901. 



Ophioninse Z>a//a Torre, Cat. Hym., Ill, p. 179, Subfam., XI 1901. 



Ophionini Felt, N. Y. State Mus., Bull. 76 (19th Ent. Rept.), pp. 



79-125 1903. 



Ophioninae Szepligeti, Gen. Ins., Hym. 34me Fas., pp. 2, 20, Sub- 

 fam. V 1905. 



Ophionini Schmiedeknecht , Opusc. Ichn., XVIII, p. 1416, Tribe II.. 1908. 



Median tibiae with two apical spurs, wings without areolet, 

 discocubital cell receiving both recurrent nervures, antennae 

 long, filiform. 



Type of tribe. — Ophion Fabr. 



To this tribe belong the true Ophions — insects belonging to 

 the Genus Ophion and its allies, which may be distinguished 

 from all the others in the subfamily, except the Hellwigiini, 

 by their venation, the discocubital cell receiving both recur- 

 rent veins. The Ophionini are however readily separated 

 from the Hellwigiini by the long filiform antennae, short and 

 clavate in the latter, and as the Hellwigiini are so far as 

 known entirely European there need be no confusion. These 

 characters, with the usually strongly compressed and falcate 

 abdomen, readily separate the members of this tribe. This 

 division of the subfamily was first proposed by Forster in 

 1868 as the Family Ophioninae, and first given tribal rank by 

 Ashmead in 1894, since which time it has been generally 

 recognized. 



