Hydrocarbon and wax ester components of cuticular lipids of the braconid parasitoid Habrobracon hebetor Say reared at 25 degrees C on larvae of a pyralid moth have been identified by GC-MS and analyzed with respect to adult age, mating status, and diet. The hydrocarbons range in carbon number from C(21) to C(45) and consist of a homologous series of n-alkanes, 11-, 13-, and 15-methyl alkanes, 1...

The survival of stored product insect natural enemies in wheat treated with spinosad was investigated in laboratory and pilot scale experiments. The predator Xylocoris flavipes (Reuter), the warehouse pirate bug, and the parasitoids Habrobracon hebetor (Say), Theocolax elegans (Westwood), and Anisopteromalus calandrae (Howard) were exposed to wheat treated with aliquots of water or spinosad at ...

FTER WHITING (1940a, 1943) established conclusively that sex in the A parasitic hymenopteron Habrobracon is controlled by multiple sex alleles, it became of interest to determine whether the same mechanism exists in other insects, in which males develop from unfertilized eggs and are haploid. The work described in this paper was started in 1944 at the SOUTHERN STATES BEE CULTURE LABORATORY, of ...