S1JBINE. By H. G. Dyar 
] 107 
area is often darkened brown or yellowish. Hindwing similarly coloured with a fine border-line and light 
fringe. Expanse of wings: 15—24, $ 22—23 mm. The elliptically shaped larva has a broad flat dorsal area 
and terminates behind in a pointed tail, whitish green, the flat area darker, with a white subdorsal line on each 
side. On many low bushes such as bilberry etc. New Hampshire, Massachusetts, New York, Ohio, Illinois. 
P. albipunctata Pack. (= ocellata Grt., goodellii Grt.). The chalky white ground of the forewing is 
densely strewn with blackish brown, especially in the lines as in geminata , more or less intensely shaded 
with dark brown; the $ shows the dusting extended almost over the whole surface except the apex. Hindwing 
blackish, fringe lighter. Expanse of wings: $ 20, $ 23 mm. The larva seems not to differ from that of geminata. 
On various low bushes. New Hampshire, New York. 
Section II. Forewing with a closed forked discal vein, but the one branch is usually more or less 
rudimentary; if this be very pronounced, the structure resembles Section I; $ antennae mostly pectinated. 
Tropical and temperate zones. 
7. Genus: Sibine H.-Schaff. 
This very difficult genus contains a great number of species which, similar to the Megalopygid genus 
Norape (p. 1084), can partly only be distinguished by the genital apparatus, whilst all of them have a rather 
similar exterior. Characterized by the slightly curved inner margin of the forewing and rather long palpi. 
Forewing with the usual 12 veins; hind tibiae with the two pairs of spurs; antennae pectinated in the basal 
halves, serrate or plain apically. Synonyma of the genus: Nyssia Wkr., Empretia Clem., Eupalia Wkr., Stre- 
blota Berg nec Hbn., Neomiresa Btlr., Episibine Dyar. The follow ing key will facilitate the determination. 
Synopsis of species. 
1. Hindwing of more or less triangular, distal margin more or less 
concave . 2 
Hindwing of $ rounded.8 
2. Hindwing distinctly triangular, disc hyaline.3 
Hindwing dark, the disc somewhat whitish at most.4 
3. Hindwing of $ with a concave distal margin. intensa Dyar. 
Hindwing with a straight, not concave, distal margin. auromacula Schaus. 
4. Hindwing of $ quite blackish brown or red.5 
Hindwing of 3 whitish in the disc.7 
5. Hindwing of $ straight at the distal margin.6 
Hinclwing of somewhat convex at the distal margin . berthans Dyar. 
6. Forewing dark brown. zellans Dyar. 
Forewing red with a blackish longitudinal ray. quadratilla D. d- Hch. 
7. Forewing of with large yellow spots. sibinides Dyar. 
These spots small. harbara Dyar. 
8. Forewing mixed with light reddish brown.9 
Forewing monotonously light or dark brown.16 
9. Ground-colour of forewing lighter than the markings.10 
Ground-colour of forewing darker than the markings.14 
10. Forewing with a bent dark stripe from the base to the tornus; the 
area below it lighter red. rollans Dyar. 
Blackish shading along the median vein and the veins.11 
11. Subapical dots distinct. rufescens (megasomoides Wkr.) 
Subapical dots very indistinct.12 
12. Forewing of dark brown, the black markings not contrasting . . rufescens Wkr. 
Forewing of <$ lighter brown, the dark markings contrasting .... 13 
Similar, but only with traces of dark markings. subalbicans D. <£• Hch. 
13. Aedoeagus short and broad. rufescens <detenuinafa Wkr.) 
Aedoeagus slender and thin. didactica Dyar. 
14. Dark brown, glossy, narrow wings with distinct subapical and sub- 
basal dots. hyperoche Dogn. 
Broader lighter brown wings, the marking faded.15 
15. Larger, the submedian and apical orange spots distinct, subapical dots 
large, more or less confluent. lophostigma Dogn. 
Smaller, orange spot faded, subapical dots small. laurans Dyar. 
alt/i punc¬ 
tata. 
