202 ENTOMOLOGICAL NEWS. [October, 



elevation. From the existing records one might imagine a similar absence 

 of Aphididae, but as a matter of fact, these insects become numerous in 

 this region, increasing as the Coccidae decrease. Although many Aphid- 

 idae have been reported from Colorado (Ckll., Tr. Am. Ent. Soc. 1893; 

 Cowen Hemip. Colo. 1895), none are from 10,000 feet or above. The 

 following list is based on notes made in the Black Timber Zone on the 

 east slope of the Sangre de Cristo Mountains, near the Micawber Mine; 

 the notes were all made in the field, on the living insects. While they 

 are brief, they will serve to give some idea of the aphidian fauna, until 

 some aphidologist can visit the district and work them up in detail: 



Species i. Whitish gray; on Epilobium angusiifolium, August. 



Sp. 2. Dark olive-brown, rather white-mealy; on Zygadenus nuttallii, 

 August. 



Sp. 3. White with a greenish tinge, rather elongated, eyes black, legs 

 color of body, except ends of tarsi, which are black; at the Micawber 

 mine, August, on Mertensia sibirica. 



Sp. 4. Dull ochery whitish, with a dark dorsal line, eyes dark; at the 

 Micawber Mine, August; on Thermopsis tnonta7ia. 



Sp. 5. Gray, with pale yellowish legs; Micawber Mine, on Epilobium 

 angustifolium. 



Sp. 6. Green, with dark or black legs and antennae; on Sisymbrium 

 canescens v. aipestre. 



Sp. 7. Glaucous, pale green, or pale yellowish; on Chenopodium. album. 



Sp. 8. Dark brown, wings dark veined, with a large black stigma; on 

 young .shoots of Populus tremuloides. 



Sp. 9. Dull brownish orange, or pale pinkish orange, wings hyaline; 

 on Heracleum lanatum. 



Sp. 10. Apple-green, legs concolorous; on Heracleum lanalum. 



Sp. II. Very dark gray, or black, shiny, legs pale; on Ribes lacustre. 



Sp. 12. Pale yellowish pink, legs dark; on Aquilegia ccerulea v. glan- 

 dulosa.—T. D. A. Cockerell, New Mex. Agr. Exp. Station. 



Entomological Iviteratiare. 



Under the above head it is intended to note such papers received at the Academy of 

 Natural Sciences of Philadelphia pertaining to the Entomology of the Americas (North 

 and South). Articles irrelevant to American entomology, unless monographs, or con- 

 taining descriptions of new genera, will not be noted. Contributions to the anatomy, 

 physiology and embryology of insects, however, whether relating to American or exotic 

 species, will be recorded. The numbers in heavy-faced type refer to the journals, as 

 numbered in the following list, in which the papers are published ; * denotes that the 

 paper in question contains descriptions of new North American forms. 



4. The Canadian Entomologist, London, Ont., '97. — 5 Psyche, Cam- 

 bridge, Mass., '97. — 7. U. S. Department of Agriculture, Division of 

 Entomology, Washington; publications of, '97. — 8. The Entomologist's 



