484 Journal of Agricultural Research voi. xviii. no. 9 



species bred from Carabus in Europe. Coquillett, referring to the same 

 specimens determined as P. calosomae in 1896, included them in 1897 

 (5, p. 82) as Biomyia georgiae B. and B. 



Tothill in 1913 (7) and Burgess and Collins in 1915 {3, p. 19) and 1917 

 (4, p. 11-12) recorded rearings of this parasite from Calosoma sycophanta 

 under the name of Biomyia or Viviania georgiae B. and B. A footnote 

 was added by the latter writers to the effect that Dr. C. H. T. Townsend 

 had recently described this species as belonging to a new genus, Eubiomyia, 

 genotype Pseiidatractocera calosomae Coq. Dr. Townsend's description 

 appeared in 191 6 (8, p. 74) under this name. Mr. R. T. Webber, of 

 this bureau, has carefully compared specimens bred by the writers at 

 Melrose Highlands, Mass., with the cotype of the above species from the 

 United States National Museum and declares them identical, hence this 

 name is applied to the parasite treated in this paper. 



DESCRIPTION OF THE PARASITE 

 ADUIyT 



The description of Eubiomyia calosomae Coq. (Pi, 59, D) as published 

 by Dr. C. H. T. Townsend is included verbatim: 



Eubiomyia, new genus. 



Genotype, Pseudatractocera calosomcB Coqt., 1897, Rev. Tach., 82, resurrected name 

 for Biomyia {Viviania) georgiae Coqt., 1897, 1. c, pp., Amherst, Massachusetts (not 

 Viviania georgiae B. B.) Holotype, No. 20202 U. S. Nat. Mus., male, reared by A. F. 

 Btu-gess from adult Calosoma calidum at Amherst, Massachusetts.^ 



Differs from Biomyia as follows: Female vertex about one-half eye-width. Para- 

 facials, parafrontals, and frontalia all much narrower. Antennae not so elongate, 

 more narrowed ; third joint in both sexes about twice as long as second joint. Fronto- 

 orbital bristles closely crowded against frontal bristles. Face more receding, the 

 lower border of head much shorter. Front in both sexes nearly same width. Female 

 without discal macrochaetse on intermediate abdominal segments, male with small 

 ones. Metatarsi of male swollen, especially hind ones, agreeing in this character 

 with Pseudatractocera. Apical cell closed, costal spine rather small. 



Differs from Pseudatractocera as follows: Epistoma shorter and broader. Front less 

 prominent. Parafacials narrower, bare. Hind crossvein nearly in middle between 

 small crossvein and bend of fourth vein. Also in frontal and discal-macrochseta 

 characters given above . 



It may be noted here that Viviania georgiae B. B. is a Pseudatractocera. 



The following descriptions of the egg, larva, and pupa of Eubiomyia 

 calosomae are by the writers. 



EGG 



Egg (PI. 58, A) elongate oval, tapering slightly toward the posterior end. Cylin- 

 drical in form from above but flat on lower surface, which is glued to beetle in process 

 of deposition, lower surface being covered with a thin membrane. Color pale yellow- 

 ish white. Specimens preserved in alcohol and mounted in balsam measured from 

 0.61 mm. long and 0.34 mm. broad to 0.75 mm. long and 0.4 mm. broad, or an average 

 of 0.68 mm. long and 0.36 mm. broad. 



* This specimen with others was forwarded to the Bureau of Entomology from Amherst, Mass., but 

 was reared from an adult Calosoma calidum collected in Maiden, Mass. 



