Vinegar-fly (Drosophila funebris). 295 
The general structure of the fly (fig. 12) follows the 
typical Muscid type. 
The Reproductive Organs.—In their general features the 
¢ 
f 
Brie: 12: 
. Dorsal view of the fly (female). (x 12.) 
reproductive organs of both male and female Drosophila 
closely resemble those of the blow-fly, but there are 
Fig. 13. 
Fly (male), genital armature. (x 30.) 
differences in the external armatures of both sexes. In 
the male a pair of curious structures are seen just ventral 
to the rectum ; each resembles a cock’s comb. There are 
as well a pair of smaller processes with spiny teeth. All 
TRANS. ENT. SOC. LOND. 1907.—PART II. (SEPT.) 20 
