()(“, AMERICAN SPECIES OF ARADTJS (iIEMIPTERA) 
Aradus similis viinoty centriguttatus Hergroth 
1SS7. Aradus ccutrifiuttatus Hergroth, Kov. Knt., vi, p. 246. 
1802. Aradus siiuilis var. crnlrigidtatus Bergroth, Proc. Ent. Hoc. Wasli- 
ington, II, ]). 362. 
Dislributiou.—W'Ah the tyiiifal form, but rarer in the North. 
/^esrri/i/ma.— Coloration imiforinly dark; third antennal segment eoneolor- 
ous; membrane generally black with a white siiot near apex of scutelhim; 
connexival siiots obsolescent or absent. Otherwise like the typical form. 
Typo specimens in Hergroth’s and Montandon’s collections, 
collected in Elorida by Ashmead. 
Ikn'gTotld^ ])ronoiinces this form, originally described as of 
specific rank, to be “only a variety of similis , and knowing this 
eminent, author’s views on naming varieties, 1 have no doubt 
that he would consider the name centrUjuttatus as a pure synonym. 
However, I think it useful to jirovide this and similar striking 
variations with distinctive names, and centriguttatus is by no means 
the least worthy among them. As noted above, we find inter- 
mediate forms, Mith lighter brown color, paler membrane, and 
faintly yellowish third antennal segment, leading insensibly to- 
ward the typical variety. 
31. Aradus (Aradus) shermani Heidemanu (Plate IV, fig. 31.) 
1607. Aradus shermani Heidemanu, Proc. Ent. Soc. Washington, viii, 
]). 6S. 
Distribuliou. — (Quebec: Ottawa, VI, 13, 1913 (CJ. Beaulieu); Ont.muo: 
Ormsby .lunction. County Hastings, V, 23, 1911 (J. D. Evans); Sudbury, 
\', IS, 1SS9; Toronto, Vlll, 20, 1913 (C. A. C.); Trenton, VI, 6, 1903 
(.1. 1). Evans). Maine: Orono, V, 22, 1914. Xoktii Carolina: Southern 
Pines, 1, 1904 (F. Sherman). CIeougia. 
DcscripHou. — Black; membrane with a small iiale siiot near aiiex of scii- 
tcllmn; extreme apical angles of connexival segments very obscurely dull 
reddish, often not noticeably so. 
Ileail loiigm- than broad (37 to 32), much longer than pronotum (37 to 2.")); 
lylus rather long, sides parallel; im])re.ssions of vertex dee]), nearly parallel, 
widely separated; base of head with distinct obliipie smooth iiale lines; 
jireocular tubercles small but distinct, acute; antenniferous siiines slender, 
acute, strongly divergent, the lateral tooth small or obsolescent; postocular 
tubercles promiiuMit, acute; antennae (fig. 31c) sleiidc-r, as long as head and 
pronotum together, tlu' first si'gmeut not (piite ri'aching middle of tylus, the 
second slightly less in length than width of luaid including both eyes (29 to 
31) and slight ly longin’ t han tlu* I hird and fourt h toget hiu’ (2S to 2.a) ; rostrum 
Proc. Ent. Soc. Wash., ii, j). ;132, (1S62), and i)i li.tt. 
