1979] 
Thorpe & Harrington — Seed-Bug Parasitism 
405 
larvae occupy almost the entire host abdomen and extend into the 
thorax, where a respiratory funnel forms a connection to the host’s 
tracheal system. Parasitized hosts are usually sterile. 
Acknowledgements 
We thank Dr. Paul H. Arnaud, Jr. (Department of Entomology, 
California Academy of Sciences) for examining and identifying our 
tachinid specimens and Mr. Martin B. Garment (Scanning Electron 
Microscope Facility, Department of Entomology, University of 
Wisconsin-Madison) for his skilled assistance with the SEM 
photomicrograph. 
Literature Cited 
Ashlock, P.D. and C.W. O’Brien. 
1964. Catharosia lustrans, a tachinid parasite of some drymine Lygaeidae 
(Diptera & Hemiptera-Heteroptera). Pan-Pacific Ent. 40: 98-100. 
Bussart, J.E. 
1937. The bionomics of Chaetophleps setosa Coquillett (Diptera: Tachinidae). 
Ann. Entomol. Soc. Amer. 30: 285-295. 
Clausen, C.P. 
1940. Entomophagous Insects. McGraw-Hill, New York. 688 pp. 
Lundbeck, W. 
1927. Diptera Danica. Genera and Species of Flies Hitherto Found in 
Denmark. Vol. 7: Platypezidae-Tachinidae, Copenhagen. 517 pp. 
Sweet, M.H. 
1964. The biology and ecology of the Rhyparochrominae of New England 
(Heteroptera: Lygaeidae). Parts 1 & II. Entomol. Amer. 43: 1-124; 44: 
1 - 201 . 
Walton, W.R. 
1914. A new tachinid parasite of Diabrotica vittata. Entomol. Soc. Wash. 
Proc. 16: 11-14. 
