351 
The beetles make their appearance simultaneously with the maturing- 
of the buds of the horse-nettle, in this vicinity during the latter days 
of May, and continue on the plants until quite late in the season. The 
plants are in blossom from early June till September. 
Oviposition begins with the development of the bud, and evidently 
extends over a much longer period than in the case of signatus. The 
bud is punctured usually at about the same point for oviposition, near 
the center, just above the calyx, but in feeding the insect is not fastidi- 
ous, and if the bud be only slightly opened, it crawls in and feasts 
upon the pollen and petals. 
The eggs are inserted in or between the anthers, on which the young: 
larva? feed. They undergo all their transformations within the bud. 
The larva and pupa are almost exact counterparts of those of signatus 7 
but are of larger size and of uniform whitish color. Full grown speci- 
mens of the larva vary in length from about 3 to S.o 05 ™, dorsal measure 
ment; greatest width, near the middle of the body, 0.6 to 0.7 min . 
As with A. signatus, only a single individual normally develops in a, 
bud, but occasionally two, and, in one instance, three beetles bred from 
a single bud. In such cases each individual had formed for itself of 
its own excrement a separate chamber in which it underwent its trans- 
formations. 
A single larva will usually devour the entire interior of the bud 
which it inhabits. They often gnaw holes through the enveloping- 
corolla so that their bodies may be seen as they work within. If 
exposed to dampness they always cut through the corolla and force 
their excrement through the orifice thus made. A. signatus has the 
same habit. The imago usually issues from an irregular hole made in 
the corolla near the calyx at the stem end of the body. In one instance 
a beetle bred from a bud that had never been severed. 
The duration of the periods of the preparatory stages are nearly as 
in signatus. The dates noted are as follows: Eggs, observed June 5 to 
July 4; larva?, full grown June 26 to 29; pupa?, June 29 to July 18; 
new brood of adults, July 2 to August 2. The pupa state was observed 
to last four and five days in different individuals, as follows : June 28 
to July 2- June 30 to July 3; July 1 to July 5. 
Unlike the strawberry weevil this species appears to avoid the sun, 
passing the day in partial concealment and inactivity. I have never 
witnessed oviposition or copulation and hence believe the species noc- 
turnal. I am also inclined to believe that it is single-brooded, but 
there is more chance of double-broodedness than in signatus as the adults 
may be found abroad during a much longer period. Individuals of the 
new brood kept in confinement fed freely, but no eggs could be found 
in the buds punctured. 
Three parasitic Hymencptera were reared with this insect, two chal- 
cidids which Mr. Ashmead has identified as Catolaccus anthonomi Ashm. 
and Entedon UthocolleUdis Ashm., and a braconid doubtfully determined 
