23 
puparium was lying at the side of it. From this puparium a specimen 
of the above species was reared on 3lst of May. The species is 
double-brooded, the first generation occuring in the spring, the second 
in the autumn. 
'Explanation of the figures. 
Phorocera caesifrons Maca. 
Fig. Empty eggshell. 
— 2. Eggshell and the hole through which the maggot has penetrated 
into ØE host. 
First stage. Pharyngeal skeleton. 
Second stage. Pharyngeal skeleton. 
— — Anterior spiracles. 
Third stage. Pharyngeal skeleton. 
4 4 Anterior spirac 
Fr POoSteror base 
Puparium. 
== 
. 
| 
omdame 
Pelatachina tibialis Fl. 
0. Third stage. Pharyngeal skeleton. 
—. ll == Posterior spiracle. 
— 12. Normal puparium. 
— 13. Maggot-like puparium. 
il 
oe 
ks 
Cistogaster globosa F. 
Fig. 14. First stage. Spines on the skin. 
— 15. — —  Pharyngeal skeleton. 
— 16. Second stage. Pharyngeal skeleton. 
T.… — BE &e gg 
mu me — Full grown maggot 
0 — Anal end with the sslltertde spiracles. 
ma ad Poparitc; after the emergence of the fly. 
— 21. Ælia acuminata L. with three eggs of Cistogaster globosa on 
the dorsal surface of the abdomen. The antennæ, the legs and 
the posterior wings are removed. 
