﻿NORTH AMERICAN SPIIINGIDiE. 181 



opposite the post-apical vein and the medio-central, truncate at the tip and excavated 

 between the angles, or denticulated along the hind margin ; the inner margin is deeply 

 concave above the interior angle, which is somewhat prominent. Male. — Antennae 

 densely ciliferous or sub-pectinated, with the articles produced beneath. Female. — 

 Antennae simple. 



Larva. — The head is semi-oval or pyramidal, with vertex acute. The body granu- 

 lated, with a caudal horn, and obliquely banded with dorsal thoracic lines on each 

 side. Transformation subterranean. The pupa of Group I. smooth and cylindrico- 

 conical, and the position of the larva, when at rest or when disturbed, sphinx like. 



Spe cies, Group I. 



§ Costa of posterior wings concave and dilated toward the tip. 



84. Myops. — Hind wings ochre-yellow internally, externally chocolate brown ; ocellus black, pupil pale 



blue. 



85. Excdecahts. — Hind wings rosy internally; ocellus black, pupil pale blue. 



§§ Costa of posterior wings rounded and entire from base to tip. 



86. Mode'stus. — Olivaceous ; hind wings purplish red, with a' black patch above inner angle. 



87. Geminatus. — Hind wings rosy ; ocellus black, with two or three blue pupils. 



88. Opthalmicus. — Variety of Geminatus ? 



89. Astylus. — Reddish brown or cinnamon colored ; anterior wings with sub-terminal whitish bands. 



Group II. 

 Antennae sub-pectinated in the % , simple in 9 ; hind margin of anterior wings 

 undulating in the % , crenated in the V . 



90. Juglandis. — Pale fawn-color. 



Group I. 



§ Hind wings dilated on the costa at the tip. 

 + Fore icings angidated and excavated on the hind margin. 



84. S. myops. — Sphinx myops Abbot & Smith, I. 51, pi. 26. Smerinthus rosacearum Boisduval, Sp. 



Gen. Lep. pi. 15, f. 4. Smerinthus myops Harris, p. 291, 3. Paonias myops Huhn. Verz. Schmett. 



142, 1520. 



Palpi, head and thorax chocolate brown and the two latter portions with a purplish or rosy tinge ; the 



sides of palpi and a stripe in the middle of the thorax tawny yellow. Abdomen brownish luteous, with 



irregular tawny yellow spots, and the hind portions of the segments dark brown. Anterior wings chocolate 



brown, with a faint purplish or reddish gray tinge towards the base ; a small blackish spot at the base, 



between median and sub-median nerves ; an indistinct brownish curved line crosses the basal portion of the 



disc, w^th a large, median, chocolate brown patch, with its anterior margin darkest, inclined towards the 



anal angle, and joined at an acute angle by a patch of the same hue about the middle of sub-median nervure ; 



one or two wavy sub-terminal brown lines, with an irregular chocolate brown band near the hind margin, 



extending from the tip to about the middle of the wing and thence to anal angle indistinctly ; a dull yellow 



patch above anal angle, with blackish spots above it in sub-median sulcus, and another about the middle of 



apical interspace, with an angular, narrow, bluish line at the tip. Posterior wings dull yellow, with the 



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