140 PROCEEDINGS OF THE NATIONAL MUSEUM. vouxxin. 



Tribe III. EUUROBRACONINI. 



This tribe is based upon a fJapanese species named by Frederick 

 Smith Bracon penetrator; it is remarkable for the length of the ovi- 

 positor, which is man}" times longer than the whole insect and recalls 

 that found in certain Fimplids — RJiysMt and Thalexm. 



Submedian cell distinctly longer than the median. 



(1074) Euurobracon Ashmead, new genus. 

 (Type, Bracon penetrator Smith.) 



SubfaiTiily XVT. RHO&^VDIlSr^^T;. 



1900. Rhogadinve, Snlifamily XVI, Ashmead, Smith's Insects oi New Jersey, 

 !>. 596. 



The distinctly margined occiput, temples, and cheeks, and the 

 longer submedian cell in the hind wings, readily separate this sub- 

 family from the Braxoninte^ while from the Sjxithnnw it is distin- 

 guished by mesonotal characters, and by the subdiscoidal nervure in 

 the front wings, which originates Jjelov: the middle of the discoidal 

 nervure, never from above the middle. A single minor group has the 

 occiput immargined, the cheeks are, however, margined. 



The group is dividable into five tribes, or minor groups, called sub- 

 families l\v some writers, distinguishable bv the characters emplo3'ed 

 in the following table: 



TABLE OF TRIBES. 



Fn int wings with two cubital cells 5 



Fn )nt wings with three cubital cells 2 



2. Head transverse, narrowed, never full behind the eyes, the temples not 

 Ijroad 3 



Head large, quadrate or cubical, full behind the eyes, the teniplea broad 4 



o. Abdominal segments 1 and 2 without a median longitudinal carina, the thyridia 

 usually wanting, rarely dictinct; ovipositor strongly exserted, or 

 prominent. 

 Head with the occiput immargined; radius in hind wings entirely obsolete 



of subobsolete Tribe I. E.xothecini. 



Head with the occiput always margined; radius in hind wings usually 



distinct Trilje II. Rhyssalixi. 



Abdominal segments 1 and 2 and sometimes 3 irith a longitudinal median carina, 

 the thyridia distinct; ovipositor never prominent, at most subexserted. 



Tribe III. Rhogadini. 



4. .Vbdominal segments 1 and 2 imlhout a median carina, at most rugulose or stri- 



ate; ovipositor long Tribe IV. Doryctini. 



5. Head quadrate, full behind the eyes, the temples broad.. Tribe V. Hec.vbolini. 



