Proceedings of the United States National Museum . Figure 23.—Cryptinae:Cryptini, head sclerltes: a, Trychosis sp.; b, Gambrus canadensis(Provancher). (1, antenna; 2, spiracle; 3, skin.) 442 PROCEEDINGS OF THE NATIONAL MUSEUM vol. no. Figure 24.—Cryptinae:Cryptini, head sclerites: a, Goryphus injerus (Szepligeti); b, Hoplo-cryptus incertulus Cushman, antenna not visible on preparation. (1, antenna; 2, spiracle;3, skin.) ICHNEIJIVIONID FINAL INSTAR LARVAE—SHORT 443

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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience