PANTOMORUS OF AMERICA NORTH OF MEXICO 23 
part, to what Horn described as variety pallidus of tessellatus; 
pallidus is here treated as a distinct species. Data on the possible 
South American origin of tessellatus are given in the discussion of 
pallidus. 
(6) PANTOMORUS (ASYNONYCHUS) PALLIDUS (Horn) 
(Higs:-2: IAD Oyxs, LS 4B 3:5;-C) 
? Naupactus durius Boheman, in Schoenherr, Genera et Species Curculionidum, 
v. 6, pt. 1, p. 27, 1840. (Not Sitona durius Germar, 1824.) 
Aramigus tesselatus var. pallidus Horn, Amer. Phil. Soc. Proc. 15: 94, 1876. 
? Sitona durius Germar, quoted from letter of Pascoe by Horn, ibid., p. 94. 
Aomopactus tesselatus (Say)=‘“N. durius Germ.” (?), quoted from letter of 
Jekel by Horn, ibid., p. 94, footnote. (The name tesselatus only was men- 
tioned by Jekel, but the context indicates that the species was pallidus.) 
? Phacepholis candida Horn, Hart, Ill., State Lab. Nat. Hist. Bull. 7: 248, 265, 
1907. 
Pantomorus tessellatus var. pallidus (Horn), Blatchley and Leng, Rhyncho- 
phora of North Eastern America, p. 124, 1916. 
Pantomorus tesselatus var. pallidus (Horn), Dalla Torre, Emden, and Emden, 
Coleopterorum Catalogus, pt. 147, p. 29, 1936. 
As stated under tessellatus, some of the references under that name refer, 
in part, to pallidus. 
Length 6.5-S mm. General color gray, sometimes grayish green, pale tan, 
or feebly coppery, occasionally with feeble violet tinge. Pronotum usually with 
a tan to fuscous lateral stripe (partly the result of the black derm showing 
through the sparser scales), and often with a very indefinite, median, darker 
area; median groove absent or nearly so. Elytron with lateral stripe of 
dense, pale scales opposite abdominal sternites 1 and 2. Elytral striae 5 and 6 
subapproximate basally in a slight but usualiy distinct impression just mesad 
of humerus. Apical margin of abdominal sternite 5 usually with a faint emar- 
gination each side of a small, median lobe (fig. 8, J). Spermatheca (fig. 4, B) 
slightly different in shape from that of tesseliatus. Otherwise, and except as 
noted in key, like tessellatus. 
Type locality (restricted) —Oklahoma. 
Distribution—IMlinois (Forest City, Havana); Iowa (Pottawat- 
tamie County); Nebraska (Westpoint); Kansas (Topeka, Salina, 
Garnett, McPherson, Ottawa, Medora, Wellington, Riley County, 
Clay County, Gove County, Reno County, Sedgwick County) ; Colo- 
rado; Arkansas; Oklahoma (Ardmore, Atoka, Anadarko, Oklahoma 
City, Wewoka); Texas (Austin, Calvert, Dallas, Fuller, Gainesville, 
Weatherford, Brewster County) ; New Mexico (Albuquerque). 
Lectotype.—One of the four specimens labeled “I. T” in the Horn 
collection at Philadelphia. 
Horn described pallidus as from “Kansas to Texas”, and placed it 
as a color variety of ftessellatus. He apparently considered pallidus 
a very weak form, scarcely deserving a name, as none of the 16 speci- 
mens in the Horn collection at Philadelphia bears a name label. E. T. 
Cresson has informed the writer that one of the “I. T”’= (Oklahoma) 
specimens will be labeled lectotype. Since its description in 1876, 
pallidus was almost lost sight of in the literature, evidently because 
it was thought to be a mere color phase of tessedlatus, and it is still 
labeled téessel/atus im collections. 
About 180 specimens were examined, all females. The species is 
probably parthenogenetic. According to pin-label data on some of 
the specimens, pallidus has been collected on Sideranthus rubigino- 
sus and Galpinsia hartwegi in Oklahoma, and on Monarda, tomato 
plant, and Johnson grass in Texas. Collecting dates range from 
