310 
rugifrons. 
ischune. 
intermixta. 
v.ouris. 
colimae. 
rujiceps. 
si say a. 
sulphured. 
demaculaia. 
consuela. 
tachymora. 
liutsoni. 
fuliginosa. 
olivalis. 
itycis. 
argyropc- 
lia. 
phalaenoi- 
des. 
STIRIA. By Dr. M. Draudt. 
S. nigifrons Grt. (45 b) is one of the largest species with yellow forewings scantily strewn with brown, 
a brown spot in the centre of the hind-margin and an oval one in the centre of the distal margin, the maculae 
and transverse lines indistinctly marked with brown. Head and thorax yellowish-white, thorax brown, 
intermixed with white and black scales. Hindwing yellowish-white with a reddish-brown marginal line. From 
Kansas to Colorado and New Mexico. 
S. ischune Dyar. (45 b) is very similar; but the head and collar of a brighter yellow, the thorax more 
purple grey; the much larger hindmarginal and distal-marginal spots are strewn more with purple grey. Hindwing 
and abdomen dark greyish-brown. Mexico (Tehuacan). 
S. intermixta Dyar (45 b) is the intermediate species between the two preceding ones, the quadrangu- 
lar hindmarginal spot is small, the hindwing is whitish in the disc, at the costal and distal margins broadly 
greyish-brown with light fringes. Mexico (Zacualpan). 
S. mouris Dyar (45 b) is well characterized by purely white hindwings with a but narrow purely 
grey marginal line, the $ hindwing being somewhat more broadly powdered with grey at the margin; basal, 
distal-marginal and hindmarginal spots of the forewing are purple grey without a brown tinge, and on the 
hindmarginal vein, on the inside of the narrow hindmarginal spot, the yellow colour bends inward pointedly, 
whereas in all the other species the brown colour projects here pointedly towards the base; the basal spot is 
very large. Mexico (Tehuacan). 
S. colimae sp. n. (45 b) has comparatively short and broad forewings of a very light yellow lustrous 
metallic colour, the hindmarginal spot being contiguous with the basal spot, both being light purple grey like 
the very broad distal-marginal spot which projects above the submedian fold almost rectangularly to the margin, 
where it forms again a right angle. Hindwing dull greyish-brown. Mexico (Colima). Type in the Coll. Draudt. 
S. ruficeps sp. n . (45 b) forms the transition from ischune to the following sisaya and is easily discernible 
by the rusty yellow head and base of collar, as well as by the much darker coffee-brown hindwing; distal-marginal 
and hindmarginal spots larger than in sisaya. less distinctly and precisely defined. Mexico (Zacualpan); type 
in the Coll. Draudt. 
S. sisaya Dyar (45 c) is very closely allied to the following sulphur ea\ the colour of the fore wing is 
a deeper yellow, the thorax is more grey than brown, the hindmarginal and distal-marginal spots are larger, 
and the hindwing is brownish-grey with yellowish-white fringes. Mexico (Tehuacan, Zacualpan. City). 
S. sulphurea Neum. (45 c). Head and collar light yellow, thorax reddish-brown; forewing greenish- 
yellow with the 3 spots as in the preceding species, the hindmarginal spot finely and more distinctly bordered 
with a darker colour, the distal-marginal spot very narrow, its proximal border slightly bow-shaped, not twice 
angled. Hindwing white, with a faint reddish-brown tint, at the margin somewhat darker. Arizona. — ab. 
dernaculata Strd. ( = ab. 1. Hmps .) is a form in which the dots of the maculae and of the posterior transverse 
line are absent except a small discal dot. 
S. consuela Streck. Thorax ash-grey, head, collar and forewing greyish-white, towards the margin 
warming into a purple grey, at the base feebly tinted yellow with a large grey spot in the centre of the hind- 
margin. a uniformly bent postmedian line being only angular below the costal margin, and a small discal dot. 
Hindwing purple grey with purely white fringes. Expanse of wings: 34 mm. Arizona. 
S. tachymora Dyar (45 c) has a yellow head and collar, a purple brown thorax and olive-grey forewings 
being narrowly yellow at the margin, distally shaded with red-brown, with a brownish-black transverse band 
through the centre of the wing, with dark purple brown fringes. Hindwing dingy white, the margin not being 
darkened. Expanse of wings: 36 mm. Mexico (City). 
S. liutsoni Sm. (45 c) is a very small species with olive-grey fore wings with a white median band 
not quite reaching to the costal margin, a postmedian band obliquely extending from the apex into the hind- 
margin, a postmedian band extending quite obliquely from the apex into the hind-margin, as well as a very 
obsolete light marginal band. Hindwing blackish-brown. California, Arizona. — In ab. fuliginosa Sm. the 
whitish median band is absent. 
S. olivalis B. A McD. (45 c) is allied with liutsoni but larger; forewing white, feebly tinted olive 
with 3 olive-green transverse bands, the most anterior one in the upper half dentate and narrow, the distal 
one divided into 3 spots. Hindwing smoky-brown. California. 
S. itycis Dyar (45 c) exhibits quite a different colouring and marking: forewing yellow, at the base 
of the hind-margin broadly shaded with brown, with fine brown transverse lines, the distal one behind the 
upper cell-angle as far as close before the margin acute-angled; the maculae are large rings finely surrounded 
with brown. Hindwing brownish-grey. Mexico (Zacualpan). 
S. argyropolia Dyar ( 45 c) is marked like itycis. but the ground-colour is a very light silvery grey, the trans¬ 
verse lines are finely bronze-brown, bordered with yellow; the brown basal shading is entirely absent, and the 
maculae are mostly quite absent or only very feebly indicated. Hindwing yellowish-white. Mexico (Zacualpan). 
S. phalaeuosdes Dyar (45 c) is similar to the preceding species, but the forewing is yellowish-white, 
in the hindmarginal half strewn with grey, the costal margin is narrowly ochreous-brown and the transverse 
lines of the same course as in argyropolia ; at the cross-vein there is a feeble curved line. Hindwing light greyish- 
brown. Expanse of wings: 26 mm. Mexico (Zacualpan), taken in September. 
