. An annotated list of the Diptera (flies) of Oregon. Diptera. 238 CALIFORNIA ACADEMY OF SCIENCES [P«OC. 4th Sul Family CYRTID^. Fig. 16. Pterodontia misella O. S. These curious little flies are usually very rare. The thorax and abdomen are large and inflated in appearance, and the head, which is composed almost entirely of the compound eyes, is quite small. All the species in North America have three pulvilli and enormous squama?. Great variations occur within the family, especially in the wing venation and struc- ture of the mouth parts. The larvae are parasitic in the bodies or egg cases of
. An annotated list of the Diptera (flies) of Oregon. Diptera. 238 CALIFORNIA ACADEMY OF SCIENCES [P«OC. 4th Sul Family CYRTID^. Fig. 16. Pterodontia misella O. S. These curious little flies are usually very rare. The thorax and abdomen are large and inflated in appearance, and the head, which is composed almost entirely of the compound eyes, is quite small. All the species in North America have three pulvilli and enormous squama?. Great variations occur within the family, especially in the wing venation and struc- ture of the mouth parts. The larvae are parasitic in the bodies or egg cases of spiders as far as known and appar- ently this parasitic mode of life has modified the structure of the flies. 225. Pterodontia misella O. S. Described from Oregon. One specimen from Forest Grove, VI-5-1918 (M. C. Lane); a single female from Mary's Peak, V-15 (Moznette). 226. Eulonchus sapphirinus O. S. A large series taken at Parkdale, VII-12 (Cole and Childs); Forest Grove, VI-3 and 5 (Cole); Mt. Jefferson, VIII-15 (Bridwell); Corvallis, V-20; Mary's Peak, VI-6 (Lovett); Buck Mt., 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 Cole, Frank R. (Frank Raymond); Lovett, Arthur Lester, 1885-. [San Francisco]
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdiptera, bookyear1921
