'48^ 



fixation have required a new gronp name. For tins group 

 Gahan Las proposed the name Vipiinae'""'". This name appar- 

 ently cannot stand. In the first place the genitive ofl'//>/o 

 is Vipionis, and the subfamily name biised on it is correctly 

 Vipioninae which the wi-itcr used in the phve referred to. 

 l>ut the name of the genus which is the type of the snhfam- 

 ilv is now Microhracoii and tlic su])family should then lie 

 called the Microbraconinae. 



The Braconidae tabulated here have been placed in 

 various subfamilies but to the writer they seem to belong to- 

 gether. However, in default of opportunity for thorough 

 consideration of the matter he docs not wish to give them at 

 present any common designation. 



They have the following characters in common : the head 

 is completely margined behind and there is a sinus l)etween 

 the clypens and the mandibles. In all but the wingless 

 endemic EcjyhyJopsis nigra Ashmead the parapsidal furrows 

 are strongly impressed, there are two closed cubital cells in 

 the front wing and in the hind wine; there are two cross 

 veins extending backward from the mediellan vein, a nervel- 

 lus near the middle of the mediellan cell and a postnervellus 

 interstitial with the basellus. All the species so far as their 

 habits are known are parasites of beetle larvae and all of these 

 but Heterospilus prosopidis, the Bruchus parasite, attack 

 wood-boring beetles. The habits of the endemic Erphi/lopsi.<! 

 arc unknown. 



TABLE OF SPECIES. 



1. Wingless, a very small mountain species, i. Ecphylopsis nigra. 

 Winged species 2. 



2. Abdomen petiolate or subpetiolate, the first tergitc much lontier 



tlian broad and its sides parallel 3 



Abdomen not petiolate, first tcrgite with the sides converging in 

 front, its posterior margin l)Ut little if at all shorter than a 

 side 4 



'''*Proc. U. S. Xat. Mus., 53:196. 1917. 



