BIOLOGICAL STUDIES OF THE GREEN CLOVER WORM 3 
it injuring velvetbean, and Riley (9) stated that it fed on Robinia. 
In food-plant experiments conducted in Tennessee, larvae were reared 
from egg to adult on common vetch, willow, strawberry, blackberry, 
and wild carrot, and they were found to feed greedily on dwarf Lima 
bean, white clover, alsike clover, tickweed, and common cinquefoil, 
and would undoubtedly mature on these plants under favorable con- 
ditions. vSmartweed (Persicaria pennsytvanica) and morning-glory 
(Ipomoea purpurea) were eaten to some extent, and G. G. Ainslie 
found a partly grown larva on Lespedeza procumbens, upon which he 
succeeded in rearing it to adult. 
In several instances larvae have been found on grasses. P. Lugin- 
bill found a specimen on millet, and others on the leaves of Paspalum 
dilatatum. E. S. Cogan swept larvae from grasses at the edge of a clover 
field, and E. H. Gibson swept them from grass and weeds growing 
in wheat stubble and along roadsides. None were seen in the act of 
feeding, and in each case it was likely that the larvae had wandered 
from near-by leguminous plants. In Tennessee the writer did not 
succeed in rearing a single individual from egg to adult from any 
member of the grass family. Vigorous, newly hatched larvae were 
offered barley, rye, Johnson grass {Sorglium Tialepense), and orchard 
grass {Dactylis glomerata) and refused them entirely. Corn and crab- 
grass (Syntherisma sanguinale) were eaten to some extent, but no 
larvae matured on them. The negative results thus obtained from 
experiments with larvae on cereals and grasses scarcely warrant in- 
cluding them as food plants. 
The full list of known host plants includes the following: 
Daucus carota Wild carrot. 
Fragaria virginiana Virginia strawberry. 
Lespedeza procumbens. 
Medicago saliva Alfalfa. 
Meibomia sp Tickweed. 
Melilot us alba White sweetclover. 
Phaseolus lunatus macrocarpus Lima bean. 
Pisum sativum Common pea. 
Potentilla canadensis Common cinquef oil. 
Rubus sp Blackberry. 
Salix sp Willow. 
Soja max Soybean. 
Stizolobi um sp Velvetbean. 
Trifolium hybridum Alsike clover. 
Trifolium incarnatum Crimson clover. 
Trifolium pratense Red clover. 
Trifolium repens White clover. 
Vigna sinensis Cowpea. 
Vicia faba Broadbean. 
Vicia saliva Common vetch. 
DECRIPTION OF STAGES 
THE ADULT 
The moth (fig. 2) is dark brown and of moderate size, with wing 
expanse of about 1 ^ inches. When at rest it resembles in outline an 
isosceles triangle with base slightly shorter than height. The sexes 
are easily distinguished by salient characters. The male is somewhat 
larger tlian the female, and more uniformly dark in color; the eyes and 
palpi are conspicuously larger; the antennae are fringed their entire 
length with setae much more numerous and longer than those found on 
