g. Body grayish, with depressed yellow woolly hair among the macrochætæ; wings folded longitudinally over the body when at rest. Cluster flies. P. rudis and related species, widely distributed. Pollenia R. D.[N]
gg. Body metallic blue or green. Eastern Hemisphere.
h. Vibrissal angle placed very high above the oral margin; a carina between the antennæ; outer posthumeral wanting; anterior intraalar present. T. viridaurea. Java. Thelychæta Br.
hh. Vibrissal angle moderately high above the oral margin; carina small or wanting; no post humeral macrochæta; lower squamæ hairy above. (= Paracompsomyia Hough) ([fig. 166]). Pycnosoma Br.
ff. Genæ bare. S. terminata. Eastern Hemisphere. Strongyloneura Bigot
ee. Sternopleurals arranged 2:1.
f. Body metallic green or blue, with gray stripes; genæ hairy to the lower margin; post humerals often wanting; lower squamæ bare above. (= Compsomyia Rdi.). Chrysomyia R. D.
g. With one or two orbitals; height of bucca less than half the height of the eye. South and east U. S. ([fig. 107]). C. marcellaria
gg. No orbitals; height of bucca about a third less than height of eye. West U. S. C. wheeleri Hough
ff. Body black or sordidly metallic greenish gray, usually yellow pollinose or variegate; genæ at most hairy above. N. stygia. Eastern Hemisphere. Neopollenia Br.