i ee 4 . 
Sea —— 
_ few short airs on stigmatal areas of segs. 6 and 7 of abdomen and 
enter of the last two (fused) segments. Length 10 mm., width 
& 3 of abdomen, 5 mm. Some pupae are quite pale, the general 
gtay-green; others are quite heavily marked. 
ntiacis larvae bred in tin boxes transformed to pupae about 
rty-eight days after hatching from the egg, or from early 
iril to the end of May. Mature larvae obtained in the field did 
it pupate until the first part of June or even later. The young- 
r la vae merely bite pits into the leaves, but older ones will 
devour the leaf entire. Though Lotus glaber is the usual food- 
at of this “blue,” I have found one larva of antiacis on 
arboreus, and they will readily devour the leaves and 
kta micranthus and Astragalus menziesii. 
co veral days before pupation the larva loses its clear color 
and markings and assumes a dull sea-green shade, or more 
_ farely becomes dull bluish-green, and semi-transparent in 
_ ¢ither 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 dorsum 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 
| mertila. With one exception they came out quite late as com- 
pared with antiacis in nature, emerging from the end of April 
ENTOMOLOGICAL NEWS. 481 
aS 
_ = 
