By Charles T Brues
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27 Tarsi apparently four-jointed; cerci usually minute; social species, living in colonies. . . . . . . . . . IS ~ P T E R A(Page 93) Tarsi three-jointed, the front metatarsi swollen; cerci conspicuous; usually solitary species. . . . . E M B I ~ D E A(Page 91) Cerci absent; tarsi two- or three-jointed; wings remaining attached throughout life; radial sector and media branched, except when fore wings are much thickened. CORRODENTIA (Page 96) Cerci present; tarsi two-jointed; wings deciduous a t maturity, the neuration greatly reduced; radial sector and media simple, unbranched.
1-8. Protura, Thysanura, Entotrophi Nesomachilis (Tillyard) Machilidze. Parajapyx, apex of abdomen (Silvestri) Japygidze. Gastrotheus (Silvestri) Lepismatidse. Acerentomon (Silvestri) Acerentomids. Lepisma (Butler) Lepismatidze. Campodea, (Maxwell-Lefroy) Campodeidse. Anajapyx (Silvestri) Projapygide. Japyx, from below (Berlese) Japygidze. slender, tapering, many-jointed. Head closely articuIated with the thorax; compound eyes present, large, reduced, or absent. Mouthparts external, their tips projecting from a mouth cavity; mandibles large, toothed; m a x i l l ~long.
PAMPHAGINAZ Impressions of vertex lateral or inferior in position or obsolete; prosternum with a distinct sharply raised tubercle or spine. , C y r t a c i i n t h a c r u s ) . (ACRIDIINB. IISB).. . . . . . . . CYRTACANTHACR~NIE LITERATURE O S ORTHOPTERA (sens. ), INCLUDIKG PHAS&IATODEd, DERMAPTERA, BLATTARIB AND RIANTODEA BLATCHLEY, W. S. Orthoptera of Illinois. 27th Ann. Rept. Dept. Geol. Kat. Res. Indiana, 1902, pp. 123-471 (1903). The Orthoptera of Northeastern America. Kature Pub.
CLASSIFICATION OF INSECTS by Charles T Brues