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FAMILY VIII. — CORIZID.-E. 



Tribe II. CORIZINI Stal, 1872a, 54. 



Since this tribe contains only the one genus, Corizus, the 

 characterization is set forth under the genus heading. 



I. Corizus 4 " Fallen, 1814, 8. 



Small oval or oblong-oval pubescent species possessing the 

 characters given under the family heading and having the head 

 triangular, broader across the eyes than apex of pronotum, 

 prolonged in front of antennae and abruptly narrowed behind 

 the eyes ; ocelli separated by a space twice or more greater than 

 their distance from eyes; antennae less than half the length 

 of body, without spines at base, the first joint scarcely reaching 

 or but slightly passing apex of head ; beak rarely passing hind 

 coxa?; pronotum trapezoidal, its front portion slightly declivent, 

 transversely impressed near apex, side margins not carinate 

 or produced forward in front, disk with a feebly elevated medi- 

 an line ; scutellum triangular, longer than wide ; elytra in great 

 part membranous and hyaline, only the veins, costal margin 

 and apex of corium coriaceous and opaque ; membrane usually 

 surpassing abdomen, its veins numerous, simple ; abdomen 

 feebly dilated, connexivum narrowly exposed ; metapleura usu- 

 ally prolonged and thinner posteriorly ; osteole wanting ; legs 

 slender, unarmed. 



The genus is cosmopolitan in distribution and contains many 

 species which, on account of close similarity in structure and 

 wide variation in color, are difficult to classify. They resemble 

 very closely the small Lygaeids of the genus Nysius and are by 

 beginners often confused with them. Van Duzee recognizes 13 

 species and numerous varieties from America north of Mexico. 

 Of these eight are known from the eastern states. 



Fig. 

 hya linus ; 



58. 

 c, of 



Abdominal disks of females of Corizus. a, of C. viridicatus ; b, of 

 punctatus ; d, of bohemanii. All much enlarged. (After Hambleton). 



1 "McAtee & Malloch (1923, 162) state that the generic name Corpus Fallen 

 (1814) is preoccupied by Coryna Wolff (1811, IV). They state, however, that Aggasiz 

 has an "entry to the effect that there is a Coryna Gartner in Pallas, Elenchus Zoo- 

 phytorum, etc., 1766." This reference, they have been unable to find in the copy 

 of Pallas at their command. As there may have been more than one edition of the 

 Pallas work, 1 prefer to retain the name Corizus under which our species are well 

 known. 



