. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES AND MELANDER: CLASSIFICATION OF INSECTS 153 50. Antennae exposed; front legs as long as the middle pair, formed for running; small active bugs. (Ochterus (= Pelogonus), widespr.) (Fig. 279). {PELOGONIDjE) Antennae hidden; front legs raptorial; short, broad species with prominent eyes. Toad-bugs. (Mononyx, Nerthra, Gelasto- coris {=Gdlgulus)). (GALGULIDJE, GELASTOCORIDJE, MONONYCHIDjE) NERTHRID-ffi 284. 291 Figs. 284-291. Hemiptera 284. Notonecta (Miall) Notonectidse. 285. Nepa, wings (Handlirsch) Ne
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES AND MELANDER: CLASSIFICATION OF INSECTS 153 50. Antennae exposed; front legs as long as the middle pair, formed for running; small active bugs. (Ochterus (= Pelogonus), widespr.) (Fig. 279). {PELOGONIDjE) Antennae hidden; front legs raptorial; short, broad species with prominent eyes. Toad-bugs. (Mononyx, Nerthra, Gelasto- coris {=Gdlgulus)). (GALGULIDJE, GELASTOCORIDJE, MONONYCHIDjE) NERTHRID-ffi 284. 291 Figs. 284-291. Hemiptera 284. Notonecta (Miall) Notonectidse. 285. Nepa, wings (Handlirsch) Nepidse. Polyctenes (Westwood) Polyctenidse. Lethocerus (Smith) Belostomatidse. 288. Nepa (Miall) Nepidse. 289. Termitaradus (Myers) Termitaphididae. Termitaradus, marginal lobe (Myers) Termitaphididae. Ranatra, apical portion of front leg (Hungerford) Nepidse. 286. 287. 290 291 51. Front coxae inserted at or near the front margin of the presternum; front legs formed for grasping; hind tarsi with distinct claws. 53 Front coxae inserted at the hind margin of the short prosternum; legs fitted for swimming, the hind tarsi without claws; upper wings strongly convex, the membrane without veins; body convex above. Back-swimmers 52 52. Posterior tibiae and tarsi ciliate; abdomen with a median carinate ridge below; beak four-jointed; eyes large. (Notonecta, cos- mop.; Anisops, widespr.; Buenoa, Am. (Fig. 284)). NOTONECTID-ffi. 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 Museum
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