CHRYSOMELIDiE. 
351 
(2) B. affinis , Frolk, in imported beans. 
(3) B. emarginatus , All., in peas ( Bisum sativum). 
(4) B. quadrimaculatus, Fabr., in peas ( Bisum sativum ) and in 
“ beans.” 
(5) B. pisorum, Linn., in peas ( Bisum sativum). 
(6) B analis , Fabr., from cow pea (Vigna catjang). 
Chittenden (Yearbook, Agric. Dept., U. S. A., 1898, p. 240) states 
that B. obtectus, Say, also occurs and it is likely to be found. The life- 
histories of B. pisomm , B. chinensis , B. obtectus and B. quadrimaculatus , 
are fully described by Chittenden (loc. cit.). Short accounts occur in 
most general works on entomology. We are not aware that any of these 
species have been reared in India, except from harvested seed ; else¬ 
where the beetles lay eggs in the pods on the plant, as well as on the 
stored seeds, but we have seen no instance where Bruchids attacked 
any cultivated pulse in the field, though many other insects are known 
which do so. We may presume either that these cosmopolitan species 
originated elsewhere or, if native to India, breed in wild plants; a very 
small number of species have been bred from wild leguminous pods in 
India, and these species do not occur among them. We believe all 
our destructive Bruchids to have originated elsewhere. 
Caryoborus gonagra , F., is a larger grey-brown insect, found in 
tamarind seeds and is the commonest free-living species in India. The 
larva when full grown emerges from the 
seed and prepares a cocoon of very 
coarse and gummy white threads, with¬ 
in which it pupates; this cocoon is oval 
and attached to some part of the seed or 
pod. ^The imago feeds on the leaves of 
the tamarind tree. The life-history was 
described in a German paper by Elditt in 1860, he having reared it 
from pods of Cassia obtained from India (Indian Mus. Notes, III, p. 15). 
Ohrysomelidje. Leaf-Eating Beetles. 
Antennae moderately long , their insertion distinct from 
the eyes. Upper surface bare. 
The Chrysomelidce are readily distinguished as they are Phytophaga 
without long antennae as in the Cerambycidce, and without the 
Fig. 224 .—Caryoborus 
GONAGRA, X 4. 
