NO- i-^o'5- ICHNEUMON FLIES— ASIIMEAD. 1 1 3 



1838. Aphldild:c, Family V, Haliday, Knt. Mag., V, p. 4. 



1839. Ichneumonidic, Family VI (part), Haliday, Hyin. Synop., p. ii. 



1840. Flexiliventrcs, Div. VI, Westwood, Intro. Mod. Class. Ins., II, Synop., p. 65. 

 1862. Apkidioida; Family IV, Forster, Verb. d. naturh. Ver. pr. Rheinl., XIX, 



pp. 228 and 247. 

 1885. Aplikludes Marshall, Trans. Ent. Soc. Lond., p. 10. 



1887. AphhUiniK Cresson, Syn. Hym. North America, pp. 54 and 63. 



1888. Aphldiidse, Tribe XXV, Marshall, Species des Hym. des Bra<;onide.«, 1, 

 p. 67. 



1900. AphidnnR', Subfamily I, Ashmead, Smitb's Insects of New Jersey, p. 586. 



Following the views of most writers on the Braconidm^ I have here 

 included this group among- the genuine Braconids as a subfaniilv, 

 although I am much inclined to agree with Halida} , and treat it as of 

 famil}^ rank equivalent to the Alym'dda', since the Hexiljility of Ww 

 abdomen is (juite characteristic and found in no other group. The 

 species, in hal)itus, recall some of the small species of genuine Ichneu- 

 monids found in the subfamily OpJiio)tin<v. 



The species are susceptil^le of tribal division as follows: 



table of tribes. 



Hind wings wiOi a basal uervure, tbe median cell complete, or at least indicated bv 



hyaline veins Tribe I. Aphidiini. 



Hind wings without a basal nervure, the median cell incomplete or entirely absent. 



Tribe II. Teioxini. 



Tribe I. APHIDIINI. 



This tribe is here defined for the first time, and is readil}^ recog- 

 nized by the hind wings having a distinct basal nervure, the median 

 cell complete. 



Nine genera fall into this tribe, distinguishable as follows: 



table op genera. 



First discoidal cell complete, separated from the second culiital cell, the first abscissa 

 of the cubitus present 2 



First discoidal cell confused with the first cubital c-ell or not existing, the first 

 abscissa of the cubitus wanting 3 



2. Front wings with three cubital cells. 



Mesonotal furrows complete, antennu; more than 11-jointed; abdomen 

 rounded, subpetiolate (889) Toxares Ilaliday. 



Mesonotal furrows incomplete, wanting posteriorly; antenn;e in both sexes 



11-jointed; abdomen lanceolate (890) Ephedras Haliday. 



Front wings with one cubital cell (891 ) Praon Haliday. 



3. First discoidal and first cubital cells confluent, but closed at apex by the re- 



current nervure and the transverse cubitus uniting, the disco-cubital cell 



therefore present 4 



First discoidal and first cubital cells absent; no disco-cubital cell 6 



4. Recurrent nervure strongly curved, not forming a straight line Vith the trans- 



verse cu1)ital nervure; abdomen lanceolate - - ^ t 5 



Proc. N. M. vol. xxiii 8 



