232 KNTOMOLOMICAL SOCIETY 
Cant/ion viridis appears to live quite differently from its congeners. 
Avhich are so well known as " tumble-bugs." It occurs, in my experience, 
only under decaying leaves, and the larva probably subsists on such leaves, 
and not on dung. 
Aphodius serval is also not a dung-feeder, but occurs under old leaves. 
It appears late in the season, and rarely a hibernated specimen is found in 
spring, whereas the allied A. inquinatus is common in early spring and 
very rare in autumn. 
Cryptocephaltts schreibersi. This is one of the few Chrysomelidce which 
live exclusively upon pine trees, and is also one of the few species of this 
genus which hibernate in the imago state. 
Pachybrachys M-nigrum, Larva and imago in my experience onlv on 
Rhus toxicodendron. 
Adimonia rufosanguinea. Larva and imago on Azalea nudifiora, the 
imago in May and June, the larva in August. 
Pachyonvchus paradoxits. The imago is common during the summer 
months around Washington on Smilax, where it eats very regular, oblong 
holes in the leaves. The larva is certainly not found on the same plant 
above ground, and is either a root-feeder or infests some other plant. 
Haltica nana. Common in semi-tropical Florida, where the imago 
skeletonizes the leaves of Croton glandulosum. 
Haltica fuscocenea. Larva and imago abundant on (Enothera biennis in 
July and August. 
Chcetocnema quadricollis. Imago skeletonizes the leaves of Verbena 
urticifolia in southern Florida. 
Glyptina cyanipennis. The imago devours the epidermis of the leaved of 
Ruphorbia cyatophora in southern Florida, and is very destructive to that 
plant, which, however, is an obnoxious weed. The larva was not ob- 
served, and feeds probably on the roots. 
Phyllotreta chalybeipenni$. The food-plant of this species is Cakile 
ame.ricana, the larva mining in the leaves of this maritime plant. 
Octotoma plicatula. The larva makes a tentiform mine in the leaves of 
Tecoma radicals; the imago eats oblong holes in the leaves. This is a 
common and widely distributed species, but generally overlooked by col- 
lectors. The plant has a wider distribution than the beetle, which I failed 
to find in Michigan and in central and southern Florida. 
Cassida callosa feeds upon Solatium nig rum in southern Florida (Cres- 
. cent City and Lake Worth). 
Anthonomus profundus develops within the fruit of Cratcegus crus-galli, 
the imago appearing in July. 
Conotracheliis simflis is peculiar to the " Gum-Elastic tree," Bumelia 
lanuginosa. The imago appears in great numbers when the tree is in 
bloom (in the month of June, at Crescent City, Florida), and no doubt ovi- 
posits in the forming fruit. The larva has, however, not yet been ob- 
served. 
Conotrachelus ventralis. This is a species hitherto known only from 
