. Bulletin. Natural history; Natural history. 118 Illinois Natural History Survey Bulletin' Vol. 22, Art. 1 erately shining; with sparse and very fine, pale pubescence. Hemelytra slightly con- stricted near middle, dark brown, strongly shining; clavus paler brown on basal half, crossed on apical half by a clear white band that becomes wider on corium and reaches costal margin; a white spot present on cori-. Fig. 138.— Cyrlopeltocoris illini, male claspers. um bordering base of cuneus; membrane uniformly fuscous, slightly paler at tip of Luneus. Legs mostly medium brown to dark brown; coxae whi
. Bulletin. Natural history; Natural history. 118 Illinois Natural History Survey Bulletin' Vol. 22, Art. 1 erately shining; with sparse and very fine, pale pubescence. Hemelytra slightly con- stricted near middle, dark brown, strongly shining; clavus paler brown on basal half, crossed on apical half by a clear white band that becomes wider on corium and reaches costal margin; a white spot present on cori-. Fig. 138.— Cyrlopeltocoris illini, male claspers. um bordering base of cuneus; membrane uniformly fuscous, slightly paler at tip of Luneus. Legs mostly medium brown to dark brown; coxae white, middle pair reddish brown at base; apex of hind femora and base of tibiae pale; tibiae paler on apical one- third. Genital segment distinctive, fig. 138. Holotype, male —Dolson, 111., Rocky Branch: June 25, 1932, Prison & Mohr. Paratypes.—Illinois.—Geff: June 12, 1934. DeLong & Ross, 1 $ . Morton: July 22. 1928. A. R. Park, 1 $ . Urbaxa: July 10. 1940. in building, C. O. Mohr, 1 $ . Missouri.—St. Louis: June 25, 1939, R. C. Froeschner, 1 $ . PILOPHORINI KEY TO GENERA 1. Vertex not compressed posteriorlv, fig. 139; length of first antennal segment nearly equaling width of head; an- terior half of pronotum constricted, its sides at that point nearlv parallel Pseudoxenetus, p. 118 Vertex compressed posteriorly, slightly overlapping anterior edge of pro- notum, fig. 140; length of first an- tennal segment not exceeding width of vertex 2 2. Second antennal segment scarcely thickened toward apex; width of head across eyes equal to or greater than posterior width of pronotum, fig. 140; hemelytra with emboliar margins parallel. .. .Alepidia, p. 119 Second antennal segment thickened toward apex; width of head less than width of posterior margin of pro- notum, fig. 141 3 3. Lateral margins of hemelytra slightly constricted and recurved ventrad, bearing white pubescent bands, fig. 141 Pilophorus, p. 119 Lateral margins of hemelytra slightlv arcuate, bearing silvery p
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