368 Annals Entomological Society of America [Vol. IX, 



KEY TO SPECIES. 

 A. Hind tibiae with long hairs standing out all around, obscuring tibial 



spines 1- scrupeus Say. 



AA. Pilosity of hind tibiae more appressed, especially on inner side; not so 

 abundant and spreading as to obscure spines. 

 B. First antennal joint as long as, or longer than thorax. 



C. Greatest width of thorax over 2 mm., color everywhere except discal 

 spots and membrane a lighter or darker reddish brown. .2. adustus n. sp. 

 CC. Greatest width of thorax under 2 mm., coloration not as above, 



3. hawleyi, H. H. Knight, n. sp. 

 BB. First antennal joint shorter than thorax. 



D. Upper surface polished, very sparsely haired. 



E. Second antennal joint considerably less than 2 mm. Icng. 



8. jurgiosus Stal. 

 EE. Second antennal joint considerably more than 2 mm. long. 



10. deleticus Reuter 

 DD. Upper surface not polished and with numerous hairs. 

 F. Second antennal joint 2.4 mm. long or longer. 



G. Thorax 2.3 mm. wide 4. limbus n. sp. 



GG. Thorax less than 2 mm. wide 9. acceptus n. sp. 



FF. Second antennal joint 2.2 mm. long or less. 



H. Color yellow-brown to brown, the principal markings con- 

 sisting of 11 symmetrically arranged pale yellow patches, 

 of which a usually conspicuous and always distinguishable 

 one covers the apical third of scutellum. 



7. multisignatus Reuter. 

 HH. Color pattern not as above. 



I. Color pattern when fully developed, consisting of pale golden 

 longitudinal vittas (the longest following cubitus to apex 

 of corium) upon rich mahogany red ground; the insect 

 may be almost wholly pale golden, but the apex of corium 

 never has a distinct dark marking. . .6. heidemanni Reuter. 

 IT. Color pattern not as above; the whole insect may be fusco- 

 stramineous, but the apex of corium (just inside cubitus) 

 always has a distinct fuscous to piceous marking. 



5. colon Say. 



1. Paracalocoris scrupeus Say. 



C. [apsiis] scrupeus Say, * Descriptions of new species of Heteropterous 

 Hemiptera of North America, New Harmony, Indiana, December, 1831, p. 22. f 

 The complete writings of Thomas Say on the entomology of North America, 

 Vol. I, 1859, pp. 342-343. (United States). 



This Species is distinguished from all the other Nearctic 

 forms by the character of the pilosity of the hind tibiae. The 

 abundant long hairs on this part of the leg stand out in all 

 directions and almost completely conceal the tibial spines. 

 The presence of spreading hairs on the inner side of hind tibia 

 especially is diagnostic, since in other species the pilosity of the 



*References are given in full the first time cited and abbreviated thereafter. 

 fPagination of this paper according to Bank?, N., Catalogue of the Nearctic 

 Hemiptera-Heteroptera, 1910, p. 47. 



