30 BULLETIN 1487, U. S. DEPARTMENT OF AGRICULTURE 
where on the body of the primary within its cocoon, hatch after 2 or 
3 days. The larvae feed externally and complete their growth in 4 
or 5 days; and after 2 to 4 days spent quietly as full-grown larvae, 
they enter the pupal stage. If the adults are to emerge during the 
same season, the pupal period covers normally 3 to 12 days; if they 
are not to issue until the following spring, approximately 10 months 
are spent as pupae, for, unlike most chalcidoid secondaries, this 
species hibernates as a pupa. Cocoons of A. melanoscelus attacked 
as early as June 3 have been found to carry Dimmockia through the 
winter, producing adults early in June of the following year, a full 
year after the eggs were deposited. 
Fic. 9.—Dimmockia incongruus, female 
DIMMOCKIA PALLIPES MUESEBECK (27) 
This species has been reared much less abundantly than Dimmockia 
incongruus, but it is, nevertheless, of some importance as an enemy of 
Apanteles. The immature forms are inseparable from those of incon- 
gruus, and in all details of life cycle and biology the two species 
appear to agree perfectly. 
CIRROSPILUS SPECIES 
Several species of the genus Cirrospilus have been obtained from 
cocoons of Apanteles melanoscelus, but in very small numbers. They 
are C. cinctithorax (Gir.), C. flavicinctus Riley, C. marylandi (Gir.), 
and C. coptodiscae (Gir.). Their principal hosts are apparently the 
larvae of small lepidopterous leaf miners belonging to such groups as 
Coptodisea, Coleophora, and Bucculatrix, and they may be only 
occasionally secondary. However, too little is known of their habits 
to permit aligning them definitely with either primaries or second- 
aries. The above species are listed here only to record their occa-_ 
sional occurrence among the parasites of A. melanoscelus. 
