Séance du 17 Novembre 1920 57 



I. Introduction. 



Tlic lOmpusac hciiii; less piii-nacious lliaii the 

 Maiilick's can he bred lordlier. I'roni lOKì lo llU.S 

 I managed lo caldi ahont lilìy ol" these insecis a! Ai\ 

 en Provence. My s|)eeiniens caijlnred IVoni llie end ol' 

 .\ugusl to Ihe end of ()(iol)er were yonng hiivae. They 

 were placed in cages made ol" l)nller innshn lixed lo a 

 woo(h'n hase and exposed lo Ihe snn as mnch as 

 possil)Ie. 'I'hey were led [jjenlilully willi honse Hies, 

 meal Hies and, laler, wilh Cal)hagt' \\'iiiles and hoNcr 

 Hies and VwaX nnlil Ihe tbllowing M;iy or ,Inne when 

 the greater nnml)er became imagos. 



(;!o[)uhition was observed between the .'Jrd and olii 

 of .lune (1). laying l)elween the <)th and the ."iOlh. 'I'he 

 yonng hatclied between llie h)lh and the 2()lh ol .Inly, 

 the eml)ryotiic (leveh)pment having lasted exactly 

 thirty days (2). 



One ol" the advantages of cages with muslin sides 

 is that il is (jiiile easy lo observe the moults and llie 

 incidents connected with them through the material. 



Manlidae have two distinct kinds of moults : 

 1" lorval moults, giving a new larva ; 2° the imaginai 

 or lasl moult, which ends wilh the unlolding ol" Ihe 

 wMUgs and gives the perl'ecl insect. 



I. The males bred hi ca])livily wi're iisiiall\ so weak 

 IIkU t should probably noi have obtained any egg-eases if 

 two wild males and a wild Iemale had no! been inlrodiieed 

 into one ol' the cages at the right lime : .June Ist. 



'1. The 1!»18- y brood was not studied. 



Ill l'J20, 31 larvae of ]{m|)usa were ca[)lured Iroai the 

 2ind of l-ebruary to the l!>th of Ahu-cli . Thirlcen of these 

 died prematurely. Tlie spi-ing having been early, the first 

 imago, a remale, was obtained on April 7tb. Ten males 



