Directions for collecting and preserving insects . FIG. 24.—A Hawk-fly (Erax las-tardi). a perfect insect; b, pupa ;larva shown at FIG. 25.—A Flesh-fly (Sarcophaga carnaria, w. «,rac«n«). a, larva; &, puparium; ,-. adult insect with enlarged parts. BULLETIN 39, UNITED STATES NATIONAL MUSEUM. [20]

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Keywords: ., bookauthorrileycha, bookcentury1800, bookdecade1890, bookyear1892