PROC. ENT. SOC. WASH., VOL. 24, NO. 5, MAY, 1922 123 



Marshall 2 later referred to it certain British specimens having 

 14-jointed antennae in the female ami 21 to 2.Vjointed 

 antennae in the male. 



The present writer, 3 following Marshall's determination, 

 synonymized with brevtcornis, Eracon juglandis Ashmead, 

 Habrobracon hebetor Johnson (not Say), and Bracon (Habro- 

 bracon} honestor Riley and Howard (misprint for hebetor). In 

 the large number of specimens examined the female antenna 

 in no case had more than 15 joints and the male antenna never 

 more than 22. The species as thus determined is apparently 

 invariably parasitic on lepidopterous larvae such as Ephestia, 

 Plodni, and Galleria infesting stored products. 



In connection with the importation into the I nited States 

 from Europe of parasites of the European Corn Borer (Pyrausta 

 nubilalis Hubner) there has been reared in considerable num- 

 bers a species of Habrobracon, the females of which have 17 

 iointed (in one small specimen 16), and the males 21 to 27- 

 jointed antennae. This species is very closely allied to the one 

 previously determined as brevicornis, differing from it, in addition 

 to the antennal characters, apparently only in the slightly 

 shorter malar space and larger eyes, a somewhat greater 

 tendency to black coloration, and shorter ovipositor. 



There seems to be no room for doubt that these European 

 specimens are the true brevicornis^ Wesmael. This makes it 

 necessary to call the parasite of storage insects by the oldest 

 name, which \sjuglanais Ashmead. This is, in a way, unfortu- 

 nate, since the species has nothing to do with Juglans except 

 as stored walnuts become infested by lepidopterous larvae. 



Such host records as that of Brischke recording brevicortiis 

 as a parasite of Dioryctria abietella and of Webb (quoted by 

 Marshall) with Myelois ccratonlae as host should probably 

 be credited to brevicornis. 



The two species may be separated by the following characters: 



Antennae in female 17-jointed, in male 20 to 27-jointed; malar space in 

 female hardly one-third, in male barely one-fourth as long as eye; 

 ovipositor sheath hardly longer than hind femur 



Habrobracon l>rc':it>ir>iis (\\Vsmael I. 



Antennae in female 13 to 15-jointed, in male 2<> to 2.vi"i'^ed; malar 

 space in female quite, in male nearly one-third as long as eye; ovi- 

 positor sheath distinctly longer than hind femur 



Habrobracon iuglandis (Ashmead). 



-Trans. Ent. Soc. Lond., 1885; p. 24, PI. I, figs, la, lb. 

 P roi . Ent. Soc. Wash., vol. 1'., W!4, p. H>1. 



