262 ICHNEUMONIBiE. 



Tahh of Tribes. 



1 (2) Sciitellumquadrate, apicallviJrocUiced; face 



scutate Metofiides, p. 262. 



2 (1) Scutelluni triangular, not produced; face 



not scutate. 

 tJ (4) Abdomen strongly fusiform and elongately 



petiolate Spiiikctides, p. 272. 



4 (3) Abdomen not strongly fusiform, usually 



sessile. 



5 (6) Upper mandibular teeth apically biiid .... Bassides, p. 274. 



6 (5) Upper mandibular teeth entire. 



7 (8) Face very strongly protuberant ; body 



convex ExocuiDEf;, p. 289. 



8 (7) Face normal ; body deplanate or but slightly 



convex Tryphoxides, p. 311. 



It may perhaps be of use in the case of bred specimens to add a 

 table of the hosts to which the above tribes are generally supposed 

 to be more or less exclusively attached : — ■ 



Metopiides are usually parasitic upon BoMBYCiDiE (Lepidoptera). 

 Sphinctides are usually parasitic upon Cochliopodidje (Lepidoptera). 

 Bassides are usually parasitic upon SYRPHiuiE (Diptera). 

 ExocHiPES are usually parasitic upon Tortricid^ (Lepidoptera). 

 Tryphonides are usually parasitic upon Texthbedinid^ (Hymen-" 

 optera). 



Tribe METOFIIDES. 



The tribe Metofiides was divided from the remainder of the 

 TRYPHO^iNiE by Holmgren under the name Trtphoxipes-aspidopi 

 (Sv. Ak. Handi. 1855, p. 98) on account of the apically truncate 

 scutellum, the apical angles of which are produced, but this 

 characteristic is lacking in one of our Indian genera, which was, 

 nevertheless, included here by Dalla Torre in 1901, doubtless on 

 the strength of its author's remarks, quoted below. Upon these 

 we must for the present rely, since he further gives us the bare 

 details that in one species the petiole is " very smooth and 

 shining" and, in the other, part of the petiole and the two apical 

 segments are " thickly covered witli pale hair " ; and this but 

 poorly represents the very distinctive sculpture of the typical 

 genus Metopius, Panz. (q. v. post). 



Table of Genera. 



1 (2) Scutelluui a])ioally constricted ; abdomen [p. 263. 



basally subpetiotate Scallama, Cam., 



2 (1) Scutellum quadrate ; abdomen not basally 



constricted. [p. 265. 



3 (4) Antenna) filiform ; abdomen parallel-sided. Metopius, Panz.,_ 



4 (3) AntenuK subcJavate; abdomen fusiform .. Cultrarius, Davis, 

 ^ [p. 270. 



