on 
i) 
NINETEENTH REPORT STATE ENTOMOLOGIST OF MINNESOTA—I19Q22 
described as a subgenus of Oplomus for the reception of confluens 
H. S., and his new species virgatus and circumcinctus. In the opinion 
of the present writer, virgatus Stal is nothing more than one of the 
many color forms exhibited by Perillus bioculatus. Distant (1880), 
under the name virgatius Stal, gives a good figure of a pale color phase 
of bioculatus. In a majority of specimens of this white color form, 
the black bar on the anterior portion of the pronotum is separated 
by a white median line, but not always, for the writer has a few 
specimens in which the black is united to form a transverse bar, as 
shown by Distant. 
Uhler (1872), under the name Perillus claudus, records bioculatus 
from the western territories of the United States, and in subsequent 
papers records the species from various western localities. Under 
the name Perillus splendidus, Osborn (1894) recorded from Colorado 
what was undoubtedly a dark red form of bioculatus. 
Schoutedon (1907) made bioculatus Fabricius the type of a new 
genus, Perilloides, but later workers have rejected this name, believ- 
ing that confluens H. S., genotype of Perillus, is really congeneric with 
bioculatus Fabricius. 
The present synonomy of the species is as follows: 
1775 Cimex biocu’alus Fabricius, Syst. Ent., p. 715. 
1778 Cimex bioculatus Goeze, Ent. Beytr., ii, p. 248. 
1781 Cimex bioculatus Fabricius, Spec. Ins., ii, p. 358. 
1787 Cimex bioculatus Fabricius, Mantissa Ins., ii, p. 295. 
1788 Cimex bioculatus Gmelin, in Linnaeus, Syst. Nat., Edn. 13, i, pt. 4, p. 2157. 
1794 Cimex bioculatus Fabricius, Ent. Syst., iv, p. 120. 
1803 Cimex bioculatus Fabricius, Syst. Rhyng., p. 175. 
1825 Pentatoma clanda Say, J1. Acad. Nat. Sci. Phil., iy, p. 312. 
1859 Pentatoma clanda Say, Compl. Writ., ii, p. 240. 
1862 Oplomus (Perillus) virgatus Stal, Stett. Ent. Zeit., xxiii, p. 80. 
1870 Perillus virgatus Stal, Enum. Hem., i, p. 32. 
1872 Perillus bioculatus Stel, Enum. Hem., ii, p. 120. 
1872 Perillus claudus Uhler, Hayden’s Surv. Terr., Rept. for 1871, p. 395. 
1875 Perillus claudus Uhler, U. S. Geog. Surv. w. 100th mer., V, chap. xii, p. 830. 
1876 Perillus claudus Uhler, Bul.. U. S. Geol. Geog. SUG. 1 ao. Some 
1877 Perillus claudus Uhler, Bul. U. S. Geol. Geog. Sury., iii, p. 308. 
1877 Perillus claudus Uhler, Wheeler’s Rept. Chief. Eng., for 1877, p. 1323: 
1878 Perillus claudus Uhler, Bul. U. S. Geol. Geog. Surv., iv, p. 504. 
1880 Perillus virgatus Distant, Biol. Cen.-Amer., Rhyn., i, p. 34, pl..3, hisses 
1886 Perillus claudus Uhler, Check List Hemip., p. 4. 
1893 Perillus bioculatus Lethierry and Severin, Cat. Genl. Hemip., i, p. 206. 
1894 Perillus claudus Uhler, Proc. Calif. Acad. Sci., ser. 2, iv, p. 228. 
1895 Mineus bioculatus Gillette and Baker, Hemip. Golo! ip 12: 
1895 Perillus claudus Gillette and Baker, Hemip. Colo., p. 12. 
1904 Perillus bioculatus Van Duzee, Trans. Am. Ent. Soc., xxx, p. 66. 
