C. H. TYLEK TOWNSEND — BIOGEOGKAPHY OE MEXICO, ETC. 55 
fessor Cockerell, and determined by the Department of Agriculture (Co- 
quillett). Locality, Blazer’s Mill, elevation 6200 feet. ’ October 2. 
17. Odontomyia nigrirostris Lw. 
18. Anthrax syrtis Coq. 
19. Exoprosopa caliptera Say. 
20. Lordotus diversus Coq. 
21. Phthiria diver sa Coq. 
22. Sparnopolius fulvus Wd. 
23. Pegomyia communis Walk. 
24. Sapromyza vulgaris Fitch. 
25. Siphonella cinerea Lw. 
26. Agromyza aeneoventris Fall. 
6. Aster laevis Linn. — Specimens collected on the Ruidoso, above 
Dowling’s Mill, October 15, about 6500 feet; where it occurred only 
scatteringly. Others collected on the Rio Bonito, in the valley bottom 
at Austen’s ranch, October 17, about 6400 feet, where it occurred along 
the edge of the stream in extensive rankly-growing patches bearing pro- 
fuse bloom. These flowers were quite as good as the Bigelovias for Dip- 
tera, but no Dejeanias occurred here. The following species were taken 
on these flowers, the locality, when not noted, being the Rio Bonito, 
above locality, date and elevation: 
1. Eristalis tricolor Jaenn. — First record of this species from 
ISTew Mexico. It is a Neotropical species, in the main. 
2. Jurinia apicifera Walk. — Ruidoso, October 15, 6500 feet. 
Also Rio Bonito, as above. 
3. Echinomyia iterans Walk. 
4. Echinomyia thomsoni Will. 
7. Aster incanopilosus (Lindl.) Sheld. — Rio Tularosa crossing, Octo- 
ber 4, about 5200 feet. Also two miles above Agency, October 3, about 
6500 feet. At the former locality there were taken on its flowers: 
1. Melanostoma stegnum Say. — October 5. 
2. Eupeodes volucris OS. — October 4. 
3. Volucella haagii Jaenn. — October 5. A Neotropical and Lower 
Sonoran species, which ranges into the Upper Sonoran. 
Also many other Diptera. It is a good fly-plant. 
8. Helenium hoopesii Gray. — Collected on White Mountain, 9000 
feet, July 3, by Professor Wooton, who took at same time on its flowers: 
Echinomyia sp. — A blackish species, with a small but distinct 
spot on the wing. 
9. Senecio douglasii DC. — Rio Ruidoso, above Dowling’s Mill, 6500 
feet. Large patches, in full bloom October 15, with many tachinids on 
the flowers, belonging to the following species: 
1 . Dejeania hystricosa Will. — October 15. 
