232 ENTOMOLOGICAL NEWS. [June, '07 



Itinerary. 



July 25-27, 1906. At Colorado Springs. 



July 29-Aug. 3. At Grand Canyon of the Colorado River, 

 Arizona. 



Aug. 4, 5. El Paso, Texas. 



Aug. 6. El Paso, or rather Ciudad Juarez on the opposite 

 bank of the Rio Grande, to Guzman, Chihuahua, 78 miles in 

 four-and-a-half hours by the Ferro Carril Rio Grande, Sierra 

 Madre y Pacifico. Guzman consists of a railroad station and 

 Chinese-kept hotel combined (accommodations poor) and 

 about a dozen adobe houses close to the Lago, or Laguna, de 

 Guzman. The muddy lake is permanent although its area 

 shrinks in the dry season. It has no outlet. Its banks, near 

 the "town" at least, are chiefly of porous andesite lava in 

 whose cavities were great numbers of the Amphipod, Hyalella 

 knickerbockeri var. inermis* A small stream from a spring 

 or well enters the lake near the station ; along this stream were 

 nine species of Odonata, including Plathemis subornata. Sur- 

 rounding country largely desert, but there is some grazing 

 land. Long-eared jack rabbits, horned toads, the large Dip- 

 lopod Spirobolus, 6-7 inches long, and Pcpsis conspicuous mem- 

 bers of the fauna. 



Aug. 7. Returned to El Paso in the afternoon. The south- 

 bound train to Casas Grandes, the termination of the line, runs 

 on Mondays, Wednesdays and Fridays, the north-bound on 

 Tuesdays, Thursdays and Saturdays. 



Aug. 9. El Paso to Nogales, Arizona. 



Aug. 10. Nogales to Hermosillo by the Sonora Railway, 

 returning Aug II. Hermosillo very hot (96 F. at 5 P. M., 

 91 ° F. at 3 A. M.) and depressing Rio Sonora almost entirely 

 dried up. Very few insects visible, only one species of dragon- 

 fly found — the wide-spread Orthcmis ferruginea, and that in 

 the irrigated plaza in front of the principal church. Good hotel 

 (Arcadia, kept by Americans), electric lights and mule trams 

 on the principal streets, mounted police, etc. Were I to repeat 



♦For the identification thanks are due to Prof. S. J. Holmes, of the 

 University of Wisconsin. 



