304 
den afkastede Larvehud sad foruden et Antal tomme Æggeskaller, 
der svarede til Antallet af de voksne Larver, tillige et ikke ringe 
Antal Æg, der indeholdt Fostre paa forskellige Udviklingstrin og 
fuldt udviklede Larver i 1ste Stadium. Dette Forhold gør det 
rimeligt at antage, at det store Antal Æg ikke hidrørte fra den 
samme Flue. 
Summary. 
Winthemia xanthogastra Kond. is found parasitic in the caterpil- 
lars of Deilephila elpenor L. and Sphinx ligustri L. In a pupa of 
the last named species the funnels of the parasites were found fixed 
to the inner side of the pupa skin, with exception of the funnels 
originating from the pseudopods which were attached to the moulted 
larval skin. In this pupa were found 74 fullgrown larvæ. and on the 
skin of the host were deposited, besides a number of empty egg- 
shells corresponding to the number of fullgrown parasites, also a 
number of eggs containing embryos and first stage larvæ. This 
feature mak es it probable that all the eggs are not originating 
from the same fly. 
Explanation of the figures. 
Winthemia xanthogastra Rond. 
Fig. 1. Egg with a first stage larva. 
— 2. First stage. Pharyngeal skeleton. 
— 8. Third stage. — — 
— 4. — — Anterior spiracle. 
— 5. — — Posterior spiracle. 
11.—9.—1913. 
