SOME PARASITIC HYMENOPTERA FROM LOWER 

 CALIFORNIA. 



BY WILLIAM M. ASHMEAD. 



The following paper is based upon a small but inter- 

 esting collection of parasitic Hymenoptera made by 

 Messrs. Gustav Eisen and Charles D. Haines, in Lower 

 California, Mexico, transmitted to me, to be worked up, 

 by Mr. Wm. J. Fox, of the Philadelphia Academy of 

 Sciences. 



The specimens collected by Haines were taken in the 

 spring of 1889 and those by Eisen in the fall of 1893. 

 The collection comprised in all forty-four specimens, but 

 these represented twenty-one distinct species, and several, 

 as was to be expected, prove new to science. 



Family PROCTOTRYPID.-E. 

 IsoBRACHiUM Forster. 



1. ISOBRACHIUM RUFIVENTRIS Ashm. 



Monog. N. A. Proctotrypidiie, 1^.38. 



One ^ specimen from El Chinche (Eisen). 

 Family BRACONID.E. 



Subfamily BKACONIN.E. 

 Iphiaulax Forster. 



2. Iphiaulax megaptera Cam. 



Biol. Centr. Am. Hym., p. 358; Tab. xv, f. .5, $. 



Two ? specimens; one from San Jose del Cabo, and 

 the other from El Chinche (Eisen), the latter being only 

 about half the size of the former, but othewise, in struc- 

 ture and color, agreeing perfectly with the larger speci- 

 men. 



Subfamily DOKYCTIN.E. 



Odontobracon Cameron. 



3. Odontobracon grandis, sp. n. 



S . — Length, 15 to 17 mm.; ovip. 12 mm. Middle lobe 



2d Seb., Vol. IV. April 25, 1894. 



