.1784. NORFOLK. 3^5 



.turely, I have caufed an abortion : it is never- 124. 

 thelefs a fatisfaftion to know the exad ftate in TBKTHREDO 

 which they appear after having been laid up TH * T1 

 near a month. 



AUGUST 31. On Thurfday the 29th procured 

 a frefh parcel of flies. Yefterday put a group 

 .of young turnep-planrs into a garden-pot. To- 

 day put the flies under the glafs- receiver. 



Being nearly an equal number of males and 

 females, and having been (hut up in a dark 

 .box for two days, they began, on being placed 

 .in a hottim fun, to copulate with a degree of 

 lafcivioufnefs I had not before obferved. The 

 males not only remained longer in the aft 

 (from one to two minutes), but neglecting to 

 .drefs themfelves, in the manner I had before 

 noticed, flew from embrace to embrace, with 

 very little intermifiion. Three or four couple 

 were generally engaged at once, and the females 

 which did not happen to be in the aft were 

 venting their fury on their more fortunate filler- 

 hood ; half a dozen of them, fome double 

 fome fingle, being frequently engaged at once 

 in battle-royal. Their furor lafted about an 

 hour ; after which they appeared flat and 

 Ipiritlefs. 



I now put three of the females upon the 

 Y 3 young 



