BIOLOGICAL STUDIES OF THE GREEN CLOVER WORM 19 
LITERATURE CITED 
(1) Barnes, W., and McDunnough, J. 
1917. Check list of the Lepidoptera of boreal America. 
ix, 392 pp. Decatur, 111. 
Synonymy of Plathypena scabra, p. 92. 
(2) Chittenden, F. H. 
1901. Some miscellaneous results of the work of the Division of Entom- 
ology, V. U. S. Dept. Agr., Div. Ent. Bui. 30, n. s., 98 pp. 
The green clover worm, pp. 45-50, fig. 26. 
General account, with descriptions and figures of egg, larva, and adult. 
(3) Grote, A. R. 
1873. Conclusion drawn from a stud}' of the genera Hypena and Her- 
minia. In Buffalo Soc. Nat. Sci., vol. 1, pp. 37-40. 
The name Plathypena scabra is proposed, p. 38. 
(4) Hawley, I. M. 
1922. Insects and other animal pests injurious to field beans in New 
York. Cornell Univ. Agr. Exp. Sta. Mem. 55, pp. 949-1037. 
A general account, with record of two parasites, pp. 1011-1014, figs. 96, 97. 
(5) Hill, C. C. 
1918. Control of the green clover worm in alfalfa fields. U .S. Dept. 
Agr. Farmers' Bui. 982, 7 pp. 
General account and control measures in alfalfa. 
(6) Howard, L. O. 
1885. Descriptions of North America Chalcididae from the collections 
of the U. S. Department of Agriculture and of Dr. C. V. Riley, 
with biological notes . . . U. S. Dept. Agr., Div. Ent. (o. s.) 
Bui. 5, 47 pp. 
Euplectrus platyhypenae, n. sp., pp. 26-27. 
(7) LlNTNER, J. A. 
1873. Hypena scabra (Fabr.) and H. erectalis, Guen. In Canad. Ent., 
vol. 5, pp. 81-82. 
Male and female forms identified as the same species. 
(8) MUESEBECK, C. F. W. 
1922. A revision of the North American ichneumon-flies belonging to 
the subfamilies Neoneurinae and Microgasterinae. In Proc. 
U. S. Nat. Mus., vol. 61, art. 15, 76 pp., 1 pi., sep. no. 2436. 
Two parasites recorded reared from Plathypena scabra, pp. 32, 66. 
(9) Riley, C. V. 
1880. The cotton worm. U. S. Ent. Comm. Bui. 3, 144 pp. 
Records hibernation of adult and pupa of Hypena scabralis (Fabr.), with note on 
food plants. 
(10) Sherman, F. 
1920. The green clover worm as a pest on sov Deans, xn Jour. Econ. 
Ent., vol. 13, no. 3, pp. 295-303. 
A general account of its occurrence in North Carolina, with measures for control. 
(11) Smith, J. B. 
1895. A revision of the deltoid moths. U. S. Nat. Mus. Bui. 48, 129 pp., 
14 pis. (Contributions toward a monograph of the insects of the 
lepidopterous family Noctuidae of boreal North America.) 
Description of genus and species, with figures of moth, pp. 110-112, pi. 9, nos. 10, 
11, 12. 
