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necessary with the hind and middle legs. The tip ^f the 

 abdomen is Lent down in both sexes and after some manipu- 

 lation the female straightens out the tip of the abdomen, ex- 

 tends the long hidden terminal segment and intromission 

 follows. The male during intromission keeps in constant up 

 and down motion on the hind legs as a pivot bending the head, 

 prothorax, and tip of the abdomen. Separation appears to 

 take ]dace in response to movements of the long last seg- 

 ments of the female in search for suitable places for ovijxi- 

 istion. 



The combats between the males seemed very mild, males 

 disputing possession of a female with the one in jxisx'^siou 

 being fought away with the hind and middle legs and if 

 persistent to some extent with the jaws. If the male had 

 been in possession for some time, however, he seems often to 

 give up the struggle readily. It was noticeable that at first 

 in a tube containing a large male and several smaller ones 

 and <»iily a single fenuile, the lai'ge male was able to keep pos- 

 session for a considcralde time hut was finally rc])hiccMl liy 

 smaller ones. 



The adults paid }io attention to honey placed with theui 

 for food. Mating and oviposition continued from early in the 

 afternoon, when they were first ])la('cd under observation, until 

 sundown at least, and indeed throughout the next day. 



Eggs laid -Tune lo at about 2 :-'U) p. m. were not hatched 

 on June 10 l)ut were found to lun-c hatched by 10 a. lu. Tune 

 18 and the young larvae fouiul in the tube where they had 

 l)('('n ])]aced, escape from the egg having taken place through 

 a slit in the proximal end. The first instar lai'va is legless, 

 not unlike the older ones, and the middle of its hody. its empty 

 mid-gut constitutes a large airspace. 



From eggs laid in the lal»oratoi'y during Tuly, adults were 

 secured in ."i^ days, ihe indoor hreeding indicating about 

 two months as the usual time re(piii'(Ml for the development 

 from (>gg to adtdt. 



From the branches of Eu})liorh'ia brought in to breed out 



