as well as by the difference in the color of the wings, is a common species in the Atlantic States, and ranges westward into the basin of the Mississippi.

Genus HEMATOMIS Hampson

This little genus includes, so far as is now known, but two species, both of which are Mexican, but one of which ranges. into southern Arizona. The species are separated as follows by Hampson:

1. Fore wing with yellowish streaks, on costa, through cell, and

on inner margin ...

2. Fore wing with pale streak on the costa only

.mexicana

.uniformis

(1) Hæmatomis mexicana Druce, Plate XIII, Fig. 34, 8.

difficulty in identifying this FIG. 51.-Hematomis mexicana, d. t. (After Hampson.) little moth.

Genus COMACLA Walker

This genus is represented in our fauna by two species. One other occurs in Europe and northern Asia, and another in tropical Africa. The two American species are very much. alike in appearance, and it is difficult to distinguish worn. or rubbed specimens. The following key will be of some assistance:

1. Wings pale mouse gray, translucent; collar and abdomen ochreous; apex of fore wings rounded..... .....simplex Walker 2. Wings and body uniformly

FIG. 52.

-Comacla simplex, 3. 1.
(After Hampson.)

(1) Comacla simplex Walker, Mouse-colored Lichen-moth.)

pale mouse gray, wings translucent only about the middle, sprinkled with blackish scales and marked by an obscure discal dot, apex of fore wings less rounded and more nearly square than in preceding species.fuscipes Grote Plate XIII, Fig. 34, 3. (The

Syn. murina Walker; clarus Grote & Robinson; texana French.

The species is common in Texas. C. fuscipes occurs in

Arizona.

Genus BRUCEIA Neumogen

One species is reckoned in this genus, the structural characters of which are well shown in the cut we give.

FIG. 53. Bruceia pulverina, ♂ . †. (After Hampson.)

(1) Bruceia pulverina Neumægen, Plate XIII, Fig. 33, 8. (The Powdered Lichen-moth.)

Syn. hubbardi Dyar.

The insect named hubbardi by Dyar seems to be only a smaller form of B. pulverina.

Genus CLEMENSIA Packard

To this genus Sir George F. Hampson refers a dozen species. All of these are inhabitants of the hot lands of America, except the species we figure. Cisthene lactea Stretch is by Hampson referred to the genus Illice. Dr. Dyar places it in the genus Clemensia. The species is unknown to the writer, and does not exist in any collection which he has examined, so that we shall not attempt to discuss the vexed question of its proper location.

(1) Clemensia albata Packard, Plate XIII, Fig. 38, 8. (The Little White Lichen-moth.)

Syn. albida Walker; cana Walker; umbrata Packard; irrorata Henry Edwards; patella Druce; philodina Druce.

FIG. 54.-Clemensia albata, ♂ . 4. (After Hampson.)

The insect ranges from New
England to Mexico and westward to the Pacific coast.

Genus ILLICE Walker

This is a moderately large genus comprising nearly thirty species, the most of which are found in tropical America. It has been subdivided into three sections, or subgenera, by Hampson. In the second section, equivalent to Ozonadia, a genus erected by Dyar, are placed those species, in which

EXPLANATION OF PLATE XIII

(Unless otherwise indicated, the specimens figured are contained in