1172 
THYATIRA. By M. Gaede. 
script a. 
abrasoides. 
reciangulatci. 
arizonensis. 
staph yla. 
lama. 
mexicana. 
H. scripta Gosse (172 h). Similar to derasa (Vol. II, pi. 49 d). Thorax and forewing bronze brown. At 
the costal margin near the base there is a white triangle from which a short white streak extends obliquely in¬ 
ward to vein 1. An oblique line extends outward from this triangle to a little beyond vein 1, then it bends in¬ 
ward to the inner margin. Ring-macula and reniform macula close together, edged with white, the latter with 
a white median streak. White before it at the costal margin almost as far as the apex. An exterior white line 
is only shortly traceable at the costal margin and at the inner margin from vein 2. Numerous parallel strongly 
dentated dark and light lines behind the reniform macula and down as far as the middle of the inner margin. 
Submarginal line thick, white, from the apex to the anal angle, bent inward between them. Hindwing 
brown, lighter at the base, with traces of a light exterior line near the inner margin. 36—40 mm. Alaska, Canada, 
to the south as far as Colorado. — abrasoides Barnes Benj. is less contrastingly marked than the nomen- 
clatural form. The reniform macula is longer, the submarginal line narrower. The relations between sripta 
and abrasoides are similar to those between rectangulata and arizonensis. Described according to 1 $ from Ari¬ 
zona. — The larva is dark yellowish brown, often almost black, with a black dorsal line. Laterally yellow with 
black spots ending pointedly at the stigmata, sometimes with a few' white spots there. Head vellow r with dark 
brown spots. Cocoon feeble, deposited in moss. 
H. rectangulata Ottolengui is very similar to scripta (172 h) and derasa. The interior line is hardly angular 
at vein 1 in derasa , slightly angular in scripta, rectangular in rectangulata. The ground-colour is rather the same 
in all the three species, though somewhat darker in rectangulata. The marking which is white in sripta with a 
very slight pink tinge, is distinctly pink here. The submarginal line is broad and distinct in derasa and scripta , 
here it is narrow, dentate outside, faded inside. 35—40 mm. Atlantic States, Canada. — arizonensis Barnes 
exhibits a drab ground-colour on the forewing and thorax, not brown as in the type. The white blotch at the 
base of the wing is smaller. The pinkish white colouring at the middle of the costal margin and at the sub¬ 
marginal line is reduced. The colour of the hindwing corresponds with the forewing, thus grey not brown as in 
rectangulata. Described according to 1 $ from Arizona. Barnes & Benjamin ascertained in 1929 that Habrosyne 
gloriosa Gn. having been described from the Caucasus and never found again is identical with rectangulata. 
chatfieldi Grote. This species or form reported from Alaska is merely referred to Grote’s List of North-American Euptero- 
tidae in D yar’s List of N.-Amer. Lepid.; in Grote r s List, however, oniy the name chatfieldii [not chatfieldi as Dyar writes] 
is quoted without any further description. 
2. Genus : Tliyatira Hbn. 
This genus has also been described already in Vol. II, p. 323. While the species of Habrosyne chiefly live 
in a cooler climate, the species of Thyatira are tropical for a great part in the Old World and predominantly so 
in the New' World. Type: bat is L. from Europe. 
Th. staphyla Dgn. (172 i) is very similar to batis (Vol. II, pi. 49 e), but larger. The two white spots, 
mostly suffused with brown near the apex, are more oblong, their lower ends connected by one or several white 
streaks. The spot at the anal angle is rounded, with 2 smaller olive brown spots behind it at the margin. The 
basal spot is almost as in batis. A white streak between the two inner-marginal spots at vein 1, yellowish below' 
it. On some specimens we notice a black, undulate, Uniformly bent interior line, as well as a treble dark exterior 
line extending from the costal-marginal spot, touching the spot at the anal angle inside, excurved betw'een. 
Hindwing brown in the distal half, lighter at the base. 34—38 mm. Bolivia. Peru, Colombia. Venezuela. 
In a few' specimens from Brazil I find the two spots at the costal margin to be rounder and not connected by 
a streak. 
Th. lama Schs. is presumably similar to staphyla, but larger. Thorax dark brown, abdomen pale brown. 
Interior line of forewing as in staphyla (172 i). In the median area the costal margin and the cell dark brown, 
traversed by black lines. Interior line double, black, incurved above the inner margin. The median area below' 
the cell is drab, narrowed by the exterior lines. A small yellow spot in the centre of the inner margin. Exterior 
line double, undulate, vertical to the costal margin, then excurved behind the cell, fine, dentate, slightly in¬ 
curved to the inner margin. Behind it at the costal margin there is a large white spot with a small olive brown 
centre. From this spot another double dentate line extends filled with drab. Behind the cell, as far as vein 2, 
both the double lines are edged with white outside. A triangular blackish brown spot behind it at the costal 
margin, with a white dot. From the apex a broad white stripe, distally undulated, extends to vein 5, enclosing 
a faint olive browm streak. A large oval spot at the anal angle is edged with black outside, with white inside. 
It encloses an olive brown streak and pinkish flesh-coloured scales. Hindwdng with a broad dark marginal 
area, with a light line inside, the basal area lighter. 45 mm. Described according to 1 $ from British Columbia. 
Th. mexicana Edw. (172 i) was briefly described as a form of batis (Vol. 11, pi. 49 e), but it is easily 
determined by its size. Somewhat darker than batis on both wings. The number and shape of the spots is not 
different, though they have a more extensive brown interior shadow. The specimens from Stattdinger’s col¬ 
lection, which I consider to be mexicana have a black interior line as in staphyla (172 i); from the spot at the 
costal margin a brown finely dentate line extends to vein 3, in light surroundings; from the exterior edge of 
