ity “Philadelphia, [Pennsylvania}’) ; Holland 1931: 
226. 
neisalia henrict: Klots 1951:147. 
allophrys henrict: dos Passos 1970:31 (No. 384). 
Illinois records.—Map 53. 
C. henrici is extremely local in Illinois, but appar- 
ntly frequent to common where it does occur. C. L. 
emington found it “unusually.common’” at Elsah, Jer- 
sy County (CLR); Glenn has taken it regularly in 
utnam County (MOG) (Fig. 2); and Ellis has found 
humerous near Danville, Vermilion County, flying 
bout red bud (Cercis canadensis) (TE). There is one 
rood, appearing March 30 through May 9. 
The species should be sought around red bud trees 
1 early spring when the trees are in full color. Adults 
lay be observed pirouetting around the treetops, rest- 
ig on the blossoms, and ovipositing on the young leaves. 
Callophrys niphon (Hiibner) 
Pine elfin 
icus niphon Hiibner “1818” [1823]: Plate 527 (type- 
locality “Florida’’). 
hecla niphon: Worthington 1880:48; Holland 1931: 
eel. 
wisalia niphon: Klots 1951:149. 
allophrys niphon: dos Passos 1970:31 (No. 388). 
Illinois records—Jackson County: Giant City, 
lage 1997 (SLU); Carbondale, April 21, 1958, Yates 
SIU). Porz County: 2 mi. S Herod, April 12, 1968, 
useman (JKB). 
In the absence of additional records, it is difficult 
determine the true distribution and abundance of 
phon in Illinois. It is probably not common in any 
linois localities, but should be expected to occur 
roughout the state. 
Callophrys gryneus (Hiibner) 
Olive hairstreak 
-apilio damon Stoll (nec Denis & Schiffermuller) 1782 
(4) :208 (type-locality “Virginia’’) . 
cus gryneus Hubner “1816” [1819]:74 (new name). 
hecla smilacis: Worthington 1880:48. 
lecla gryneus: Holland 1931:231. 
itoura gryneus: Klots 1951:141. 
llophrys gryneus: dos Passos 1970:32 (No. 394). 
Illinois records.—Map 54. 
The host of this hairstreak, red cedar (Juniperus vir- 
wana), is found nearly throughout Illinois, but our 
ords of the butterfly are not as generally distributed 
this would indicate; the species is local and may 
ve been overlooked in many localities. As shown by 
° distribution map, nearly all of our records are from 
alities near the Illinois or Mississippi rivers, and 
yneus may not be present in all areas where red cedar 
curs. C. gryneus is double-brooded. The earliest and 
est dates for the first brood are April 22 and May 
; for the second, June 27 and July 19. 
homas Taylor (personal communication) — states 
at gryneus is local but common when found. It flies 
ar the tops of the cedar trees and if disturbed it 
ts out from the tree and returns quickly, often to 
- Same perch. The males are particularly inclined 
21 
to remain near the treetops. Taylor found the species 
common at Mason State Forest, Mason County, and 
at Jubilee College State Memorial, Peoria County, and 
Downey considers the species common in southern Tlli- 
nois. 
Atlides halesus (Cramer) 
Great purple hairstreak 
Papilio halesus Cramer 1777(2):3 (type-locality “Vir- 
ginia’’). 
Thecla halesus: Holland 1931:224. 
Atlides halesus: Klots 1951:133; dos Passos 1970: 33 
(No. 408). 
Illinois records—Union County: 
tember 17, 1966, Persons (INHS). 
This hairstreak was attributed to Illinois by Hol- 
land, Klots, and other authors, probably on the basis 
of old published records which we were unable to 
locate; the above is the only positive Illinois record 
known to us. The specimen was taken while sweeping 
for other insects and was severely damaged. A. halesus 
is probably only a rare casual in the extreme south. 
Shapiro (1966) says halesus is not resident north of 
the range of live oak (Quercus virginiana), which lies 
far to the south of Illinois. 
Pine Hills, Sep- 
Euristrymon ontario (Edwards) 
Northern hairstreak 
Thecla ontario Edwards “1868” [1869]: 209 (type-local- 
ity “Port Stanley, Ontario”); Holland 1931:235. 
Strymon ontario: Klots 1951:135. 
Euristrymon ontario: dos Passos 1970:34 (No. 412). 
Illinois records.—Jackson County: Carbondale, 
May 22, ly6+, May 14, 1965, Downey (JCD). Jersey 
County: Elsah, May 30, 1941, May 30, 1942, GC. L. 
Remington (CLR). 
E. ontario is rare in Illinois but mav be expected 
anywhere in the state. It should not be limited, as im- 
plied by Downey (1966) on the basis of the few records, 
to the southern portion of the state. 
Panthiades m-album (Boisduval & Le Conte) 
White M hairstreak 
Thecla m-album Boisduval & Le Conte 1833:86 (type- 
locality “Georgia”’) ; Worthington 1880:48; Holland 
1931229) 
Strymon m-album: Klots 1951:133. 
Panthiades m-album: dos Passos 1970:34 (No. 414). 
Illinois records.—Map 55. 
This hairstreak (Fig. 2) is widespread but rare and 
erratic in Illinois. 
Strymon melinus humuli (Harris) 
Gray hairstreak 
Thecla humuli Harris 1841:215 (type-locality “Massa- 
chusetts”) ; Worthington 1880: 48. 
Thecla melinus: Holland 1931:235. 
Strymon melinus: Klots 1951:134; dos Passos 1970:34 
(No. 417). 
Illinois records.—Map 56. 
