no The Ohio Journal of Science [Vol. XXI, No. 3, 



Irbisia sericans (Stal). 



1858 Leptomerocoris sericans Stal, vStett. Ent. Zeit., XIX, p. 188. 



1879 Irbisa sericans Reuter, Ofv. Finska Vet.-Soc. Forh., XXI, p. 58. 



1896 Irbisia sericans Reuter, Hemip. Gymn. Eur., V, p. 12, PI. 1, Fig. 4. 



1900 Irbisia {Leptomerocoris) sericans Heidemann, Proc. Wash. Acad. Sci., II, 



p. 504. 



1909 Irbisia sericans Oshanin, Verz. Palas. Hemip., I, p. 760. 



1915 Irbisia sericafis Essig, Inj. Ben. Ins. Calif., edn. 2, p. 213. 



1917 Irbisia sericans Van Duzee, Cat. Hemip., p. 325. 



cf" 9 July 2-Aug. 16, 1917, Katmai, Alaska. Prof. Hine 

 reports this species as common on rye grass and a few other 

 plants, it being the only Mirid that was taken in considerable 

 numbers. The species was originally described by Stal (1858) 

 from Sitka, and is now known to occur along the western coast 

 from California to the Bering peninsula, thence extending its 

 range to some of the islands bordering the Palaearctic region 

 (Oshanin 1909). Essig (1915) reports the species as injurious 

 to rye and oats in California. 



Calocoris fulvomaculatus (De Geer). 



1773 Cimex fulvomaculatus De Geer, Memoires, III, p. 294. 



1861 Calocoris fulvomaculatus Fieber, Eur. Hemip., p. 253. 



1875 Calocoris {C.) fulvomaculatus Reuter, Hemip. Gymn. Scand. Fenn., p. 49. 



1886 (?) Calocoris fulvomaculatus Uhler, Check List Hemip., p. 18, "Br. Am." 



1896 Calocoris fulvomaculatus Reuter, Hemip. Gymn. Eur., V, p. 184. 



1907 (?) Calocoris fulvoiiiacidatus Snow, Trans. Kans. Acad. Sci., XX, Pt. 2, p. 159. 



1909 Calocoris fulvo-maculatus Oshanin, Verz. Palae. Hemip., I, p. 691. 



1917 Calocoris fulvomaculatus Van Duzee, Cat. Hemip., p. 329. 



2 cf Aug. 10, 1917, Katmai. Uhler (1886) was the first writer 

 to record this species from North America, merely indicating its 

 occurrence and distribution as "Br. Am." So far as the writer 

 can ascertain there is no specimen extant upon which this 

 record was based. The next record for the species was based on 

 material collected in the desert region of Arizona and published 

 by Snow (1907). If the specimens upon which this record is 

 based are the same as the true fulvomaculatus (De Geer) then 

 the species has a remarkable distribution requiring adaptability, 

 a condition not borne out by a known transitional distribution. 



The writer has compared the present specimens with 

 material from Finland, determined by Reuter, and finds that 

 the coloration and male genital structures agree in every respect. 

 Calocoris fulvomaculatus is recorded from Siberia by Oshanin 

 (1909) and with the present specimens from Alaska the species 

 would appear to have a holarctic distribution. 



