Dec., '08] ENTOMOLOGICAL NEWS. 481 



few short hairs on stigmatal areas of segs. 6 and 7 of abdomen and 

 on venter of the last two (fused) segments. Length 10 mm., width 

 at seg. 3 of abdomen, 5 mm. Some pupae are quite pale, the general 

 color being gray-green ; others are quite heavily marked. 



Antiacis larvae bred in tin boxes transformed to pupae about 

 forty-eight days after hatching" from the egg, or from early 

 April to the end of May. Mature larvae obtained in the field did 

 not pupate until the first part of June or even later. The young- 

 er larvae merely bite pits into the leaves, but older ones will 

 devour the leaf entire. Though Lotus glabcr is the usual food- 

 plant of this "blue," I have found one larva of antiacis on 

 Lupinus arboreus, and they will readily devour the leaves and 

 pods of Lupinns uiicrantlnis and Astragalus mcncicsii. 



Several days before pupation the larva loses its clear color 

 and markings and assumes a dull sea-green shade, or more 

 rarely becomes dull bluish-green, and semi-transparent in 

 either case. It is now somewhat shortened, and choosing a 

 convenient surface, spins a mat of silk where it later girdles 

 itself for pupation. The silken girdle is rather weak, and where 

 it joins the mat on either side the several strands are commonly 

 united into one thread, but usually break up into several near 

 the dorstim of the insect, so that it is wide in that region. In 

 the larva, this girdle, starting from the mat at about the sec- 

 ond abdominal segment, proceeds anteriorly and dorsally so 

 as to support the third thoracic segment. Three days after 

 girdling it sheds its exuvium and becomes a pupa. The larger 

 hairs of the larva dry up and lie appressed to its body, and the 

 latter in assuming the shape of the pupa becomes somewhat 

 constricted in its middle. The larval skin, tightly drawn over 

 the thorax, is loose and wrinkled over the abdomen. It splits 

 on the thorax as in other larvae and exposes the pallid pupa, 

 which in time assumes its proper shade. 



By the beginning of June, I had about twenty pupae from 

 which I obtained sixteen butterflies, nine males and 7 females. 

 They were all antiacis, though several had the white dash of 

 mcrtila. With one exception they came out quite late as com- 

 pared with antiacis in nature, emerging from the end of April 



