. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 789 790. 791 Figs. 787-792. Coleoptera 787. Cylas (Pierce) Cyladidae. 788. Camptocerus, tarsus (Hopkins) Scolytidae. 789. Megalodacne, tarsus. Erotylidae. 790. Leptinotarsa, tarsus (Sharp) Chrysomelidae. 791. Saperda, apical part of tarsus. Lamiidae. 792. Hydrophilus, mesosternum (Berlese) Hydrophilidae. Maxillary palpi much shorter than the antennae, if rarely com- parable to the antennae in length the alula is absent and the last tarsal joint abnormally long (some Dryopidae), or only the last joint is greatly length
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 789 790. 791 Figs. 787-792. Coleoptera 787. Cylas (Pierce) Cyladidae. 788. Camptocerus, tarsus (Hopkins) Scolytidae. 789. Megalodacne, tarsus. Erotylidae. 790. Leptinotarsa, tarsus (Sharp) Chrysomelidae. 791. Saperda, apical part of tarsus. Lamiidae. 792. Hydrophilus, mesosternum (Berlese) Hydrophilidae. Maxillary palpi much shorter than the antennae, if rarely com- parable to the antennae in length the alula is absent and the last tarsal joint abnormally long (some Dryopidae), or only the last joint is greatly lengthened (Telegeusidae) 14 14. Elytra short, exposing much of the abdomen; tergites entirely corneous in texture; wings usually present and folded beneath the elytra in repose; free portion of media atrophied or absent, not joining the cubitus to form a long closed axial cell. (If external parasites of the beaver, compare Platypsyllidae, coup- let 71). (STAPHYLINIF6RMIA) 15 Elytra covering most of the abdomen, not much shortened and cov- ering all or all but one, two or three abdominal segments; rarely much shortened in which case the wings either do not fold be- neath the elytra or are wanting; tergites membranous or semi- membranous, except sometimes those of the two or three apical segments (five in the beaver parasite, Platypsyllus, couplet 71) . .17 15. Abdomen flexible, not enlarged apically, parallel or tapering, with six to eight freely movable sternites; antennae usually eleven- jointed; tarsi usually five-jointed; usually small, occasionally large, slender species. (If wings do not fold beneath elytra and maxil- lary palpi are flabellate, compare Atractoceridae (couplet 91) or. 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Muse
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