. Bulletin of the Department of Agriculture. Agriculture; Agriculture. A STl'liV IN IIYPEHPAKASri ISM 15 Although frequently reared from cocoons of A. mf-lann. ,<l' u â , //.////- vipes is by no means so important an enemy of this A panicle-- as H. tenellus. In the foregoing list it lias been included among the 14 hyperparasites which are most abundantly reared from thai species, but it falls well down in the list. i I - VI1 M LIS CUSHMAN (5) Hemiteles apantelis was only rarely encountered as a parasite of Apanteles melanoscelus; according to the observations of the writers,
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. A STl'liV IN IIYPEHPAKASri ISM 15 Although frequently reared from cocoons of A. mf-lann. ,<l' u â , //.////- vipes is by no means so important an enemy of this A panicle-- as H. tenellus. In the foregoing list it lias been included among the 14 hyperparasites which are most abundantly reared from thai species, but it falls well down in the list. i I - VI1 M LIS CUSHMAN (5) Hemiteles apantelis was only rarely encountered as a parasite of Apanteles melanoscelus; according to the observations of the writers, at least, it is at present of no importance as an enemy of this primary. It is included here, however, in order to record its occasional occur- rence in this role. It is possible that under certain conditions it may. Fig. 2.âHemiteles fulvipes, female become much more destructive. There is usually but a single genera- tion annually, which hibernates in the form of full-grown larvae. Co- coons attacked as early as May 20 to June 15 did not produce adults of the hyperparasite until May of the following year. In partheno- genetic reproduction males are produced. ACROLYTA EMPRETIAE ASHMEAD Only a few specimens of Acrolyta empretiae have been obtained from cocoons of Apanteles melanoscelus. In biology it exactly re- sembles Hemiteles fulvipes. Adults appear in May and attack the cocoons of various species of Apanteles. There are several genera- tions annually, development from egg to adult requiring only from 16 to 20 days. Like all the species of Hemiteles. it is a solitary par- asite, and passes the winter as a mature larva within the host cocoon. The progeny of unfertilized females are Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The De
Size: 1762px × 1418px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauth, bookcentury1900, bookdecade1910, booksubjectagriculture
