224 Annals Entomological Society of America _[Vol. VII, 
gossypi1, 480 A. helianthi, 19 A. setariae, 82 C. populicola, 140 
A. pomi, 30 M. rudbeckiae); and another, 962 plant lice, (774 A. 
gossypii, 108 M. pisi, 80 Myzus cerasz). One larva during the 
first instar ate 30 A. gossypii in a single day; in the 2nd instar, 
100 to 130 A. gossypii; third instar, 150 A. gossypit. Of course 
these records were made when all conditions were favorable. 
No records were taken on the adult. 
The range of feed seemed to be the same as for H. convergens 
and C. 5-notata. They were observed out doors feeding on 
A. pomi, H. arundinis, M. cynosbati, and S. lanigera. Though 
these were the only observations recorded they seem to feed on 
practically every common species of plant lice. 
As to injurious influences, they seemed to be affected by the 
same factors as the foregoing species but seemed to stand 
cool wet weather rather better. Some of these beetles got 
rather badly pasted up by the glue from the cornicles of M. 
rvudbeckiae but it did not result fatally. One beetle was found 
with one front foot glued fast to its head, probably the result 
of an attempt to clean itself for which operation the beetle was 
not sufficiently vigorous, the foot sticking fast until it dried. 
A nearly full grown larva was observed to attack a good 
sized pupa of M. ambrosiae, biting it in the side of the third 
abdominal segment. The louse immediately struck the larva 
in the face with its cornicle and discharged a quantity of glue. 
The larva paid no attention to this but continued until it had 
finished the louse, and, inside of fifteen minutes, every trace 
of glue was removed. Evidently when the beetles and larvae 
are in vigorous condition this protective device of these aphids 
produces little result beyond temporary annoyance. 
This species seems to be peculiar in several points of its life 
history as compared with the other Coccinellidae studied; first 
in the fewer generations in a season, and the consequent greater 
longevity of the beetles; and second, in the non-activity of the 
males. Mr. Bragg, who had dissected at least 100 monticola 
specimens, found only one male and he has some doubt as to 
its really being this species. No monticola has been observed 
in coition either indoors or out except with C. 9-notata or C. 
5-notata males. The eggs of a female captured mated with 
C. 9-notata all proved infertile, even though the male was kept 
with the female for over two months and was frequently 
