30 Bulletin Wisconsin Natural History Society [Vol. 13, No. 1 
The copulation described seems to be a true one in which 
spermatozoa are passed from the male to the female by means 
of an intromit tent organ. An examination of the genital organs 
of both sexes after copulation revealed no spermataphore. 
The maximum rate of copulation for one pair was three times 
in forty minutes. 
It is possible that the female often kills and eats the male after 
copulation. One case was observed in their natural habitat in 
which the female had eaten away almost the entire head of the 
male who was still alive. All males under observation died after 
a series of copulations, not surviving more than two weeks after 
Fig. 4. Position Assumed by Male while Manipulating Genital 
Apparatus with Mouth Parts. 
the first copulation while the females remained hardy during this 
period. It is probable that cannibalism occurs only when the 
female is hungry and the male is too weak to defend himself 
In one case a strong, healthy male was left in a cage with four 
females for six days and copulations were observed daily. At 
the end of that time only the shell of his body was found, the soft 
parts having been eaten away. Further evidence of cannibalism 
was furnished by a female who devoured four Ceuthophilus nymphs 
in a single night and when there was other food to be had. Among 
the Mantids it is a common occurrence for the female to devour 
the male even during the act of copulation. It would not seem 
