INSECTS INFESTIXG THE BEAN. 



The Bcaii Weevil (Bnirhv.sfalxe) 231 



Tbc Bean Aphis (Aphut rii»i('m) 232 



The following insects also attack the Bean: 

 The Ash-colored Blister-beetle {Cantharis 

 cinerea.) 

 \ The Yellow Bear (Spilonoma Virffiniea.) 



rllAPTEK CCXXXI. 

 The Bean Weevil. (Cal.) 



{lira eh IIS fuli.-i . — Piilcv.) 



Synonym — Hrudi (/.s ohxoletvs. — Say. 



(JrtUn-, C'oLKOPTJ-:]{A : Faiuilv. HiuciiiD.i:. 



[Livin.ii: in 1 loaut^ : small loetless grul)s, finally transform- 

 ing into grayish-brown beetles.] 



The feniale weevil deposits her eggs upon the young puds, 

 and the larva, as soon as hatched, burrows through the pod 

 and enters tlie bean (Fig. oo*.)6) : sometimes as many as four- 

 teen hirva"* have licen <-ounted in one l»ean (Riley). When 

 fully grown they gnaw a passage tri the hull or shell, and are 

 soon changed to pupa': the translbrniatioii to the ]ierfect 

 state sometimes takes place in tlie Fall, but usually not until 

 the J'oJlowing S])ring. 



Fig. 339. Fig- ''•^^•^- — Bean Weevil ; a, the 



weevil enlarged, the sujall iigure at 

 the left being the natural size — 

 color, bi'ownish-gray : l>. a bean in- 

 \ tested by the larva of this weevil. 

 > "■" The ix-rfect weevil (Fig. o.'»9a) is 

 of a brownish-gray color, and 

 measures about one lino in length- 

 l\KMEi)\. — Fse Xo. 115. 



