EXPLANATION OF PLATE XVI

(Unless otherwise indicated, the specimens figured are contained

in the collection of W. J. Holland.)

1. Arachnis aulæa Geyer, f.
2. Arachnis picta Packard, ♂.
3. Arachnis zuni Neumogen, ‡,
U. S. N. M.

4. Euerythra trimaculata Smith, ♂,
U. S. N. M.

5. Manas vestalis Packard, ♂. 6. Diacrisia latipennis Stretch, ♂. 7. Diacrisia virginica Fabricius, ♂. 8. Estigmene congrua Walker, ♂. 9. Hyphantria cunea Drury, ♂. 10. Hyphantria cunea Drury, ♂, var. punctatissima, Abbot & Smith.

11. Estigmene acræa Drury, ♂.
12. Estigmene acræa Drury, .
13. Isia isabella Abbot & Smith, .
14. Acoloithus falsarius Clemens, ♂.
15. Turuptiana permaculata Pack-

ard, ♂.

16. Ecpantheria deflorata Fabricius, 2.

17. Pygarctia elegans Stretch, ♂. 18. Pygarctia spraguei Grote, ♂.

19. Euchatias oregonensis Stretch,

20. Hyphoraia parthenos Harris, ?,
U. S. N. M.

21. Euchatias egle Drury, f.
22. Euverna clio Packard, .

23. Seirarctia echo Abbot & Smith,
우.

24. Calidota strigosa, Walker ♂. 25. Parasemia plantaginis Linnæus, ♂, U. S. N. M.

26. Parasemia plantaginis var. geo-
metrica, Grote, ♂.

27. Pygarctia abdominalis Grote,
9, U. S. N. M.
28. Apantesis quenseli Paykull, ♂.
29. Apantesis nevadensis Grote &
Robinson, ♂, U. S. N. M.
30. Apantesis oithona Strecker, ♂,
Engel Collection.

31. Apantesis blakei Grote, ♂, U.
S. N. M.

32. Apantesis proxima var. autholea, Boisduval, ♂.

This species occurs in in the Carolinas and southward. Pareuchates tenera is found in the Atlantic States and is not uncommon in Pennsylvania.

Genus EUCHETIAS Lyman

The following key based upon that of Hampson may enable the student to differentiate the species in his collection:

Fore wing brownish white with the veins white..oregonensis Stretch Abdomen whitish above.... pudens Henry Edwards

(1) Euchætias murina Stretch, Plate XI, Fig. 18, 9. (The Mouse-colored Euchætias.)

The habitat of this species is Texas.

(2) Euchætias egle Drury, Plate 1, Fig. 5, larva; Plate XVI, Fig. 21, 9. (The Milk-weed Moth.)

FIG. 75. Euchatias egle, 8. 1. (After Hampson.)

The figure given above in the text and those given on the plates will suffice for the identification of this common insect, which ranges from the Atlantic to the Mississippi and beyond. The larva feeds upon Milk-weed (Asclepias).

(3) Euchætias oregonensis Stretch, Plate XVI, Fig. 19, 8. (The Oregon Euchatias.)

This insect is found throughout the northern portions of the United States and Canada.