0 LEUCOBREPHOS; CAENOSYNTELES; ALSOPHILA. By L. B. Prout. 
third forming a small lunule above the inner angle. Hindwing yellow, somewhat fulvous, crossed near the 
middle by a constricted or slightly interrupted black band; border broadly black, with the fringe yellowish. 
Underside yellow, with two common black bands.” Perhaps a slight ab. of Leptarctia calijorniae Walk. 
melanis. B. melarsis Bsd. “Size of the preceding; forewing blackish grey, with two dirty white spots, one oil the 
costa, the other, a little smaller, above the inner angle. Hindwing and fringe entirely black. Fore wing beneath 
crossed by a broad yellowish band.” Perhaps a darker phase of L. calijorniae form dimidiata Stretch (Vol. 6, 
PI. 39 b). 
2. Genus: T^eu<*ol>rei>lBO$ Grote 
Closely related to Brephos, but still more shaggy, with palpus and tibial spurs further atrophied, 
1st median vein of hindwing long-stalked with 3rd radial. Antenna of pectinate with longer branches. 
Only two species known, of which the Siberian middendorfii Men. has been figured in Vol. 4, pi. 1 a. 
brephoides. L. brephoides Walk. (= middendorffii Moschl. nec. Men.) (1 a). Hindwing in all the forms creamy 
whitish with moderate dark borders, that of the abdominal margin variable in breadth and intensity. Fore wing 
rcsoluta. in the type form blackish fouscus, with both the angled pale lines developed. — ab. resoluta Zell, has the dark 
hoyi. parts of the forewing more powdered with white. — ab. hoyi Grote is founded on a small and very dark 
specimen from Wisconsin, with the antemedian line obsolete. 
3. Genus: Caeaiosynteles Dyar 
Eye large, round. Palpus short, hairy. Antenna simple. Tongue undeveloped. Hindtibia with terminal 
spurs only. Fore wing with distal margin strongly curved, cell rather long, 1st subcostal free, 2nd to 5th stalked, 
and connected by a bar with 3rd to 4th, 1st median well separate. Hind wing with costal margin rather long, 
2pex and distal margin rounded, costal vein closely approaching subcostal in the middle, 2nd subcostal shortly 
stalked, 2nd radial distinct, though slender, arising somewhat behind the end of the cell-vein, 1st median 
well separate. 
Only one species is known, and this has no apparently near affinities with any known genus (see our 
note on the subfamily). As Dyar remarks, it falls into the Brepliinae by the subfamily scheme which is based 
on venation — 2nd radial of hindwing present, 4th subcostal of forewing running to costa before apex, but 
the latter character, though not yet recorded in Oenochrominae , would be quite possible there and is certainly 
found in some Geometrinae. Possibly the relationship is with the Biston group. 
haploaria. C. haploaria Dyar (1 a). A plain grey species with simple pattern, but not liable to be confused with 
any other. Mexico: Tehuacan and Zacualpan (R. Muller). 
2. Subfamily: Oenochrominae. 
The true Oenochrominae, as described in Volumes 4 and 12, are scarcely represented in the New World, 
except by the Achlora group, but a few scattered genera of doubtful location are at present referred here, 
while two tribes (perhaps better as subfamilies), the Ametridicae and Hedylicae, belong exclusively to the 
Neotropical Region. The subfamily is assumed to contain all the Geometridae in which the 2nd radial of the 
hindwing is fully developed while the forewing has not the characteristic venation of either the Hemitheinae, 
the Sterrhinae or the Larentiinae. It would therefore, as noted above, not be made much more incongruous 
by the inclusion of the Brepliinae. Obelopteryx, which Warren placed here, belongs to the Sterrhinae. 
1. Genus: Alsophila Hbn. 
Face smooth, rounded. Palpus extremely short. Tongue wanting. Antenna of <$ with fascicles of long 
cilia. Hindtibia with all spurs, those of the $ short. $ entirely apterous, with the tail more or less tufted. 
A with the wings delicate, folded in repose, the scaling thin (least so in the American species), the hindwing 
relatively ample, with the costal vein anastomosing strongly with the subcostal, as in the Larentiinae, the 
forewing with all the subcostals present, but variable. — The early stages are briefly noticed in A ol. 4, 
