June, '07] ENTOMOLOGICAL NEWS. 233 



this part of our excursion, I should try Magdalena or Santa 

 Ana, between Xogales and Hermosillo. Information about 

 Sonora, train connections to Hermosillo, etc., was almost un- 

 obtainable at El Paso, even at the Southern Pacific ticket 

 agency. 



Aug. 12. At the Mexican town of Nogales (Hotel Modern, 

 fair, French). River dried up. A very small cow pond at the 

 southern end of the town furnished six species of Odonata. \ 

 fair number of other insects gathered in grassy fields, and 

 under electric light before sunrise of next day. 



Aug. 13. Returned to El Paso. 



Aug. 15. El Paso to Chihuahua City by Mexican Central. 



Aug. 16-18. Chihuahua City (Casa Robinson. American 

 kept; local report would make Hotel Palacio better). Rain in- 

 terfered much with collecting, dragonflies scarce (2 spp.). 

 Many wild flowers in blossom, butterflies and beetles abundant 

 west of city, beyond the Santuario (tram-car from chief plaza), 

 which seemed to be the best collecting ground near at hand. 

 Great individual variation in colors of the Scarabaeid, Cotinis 

 mutabilis, in same spot, both here and at Santa Rosalia. 



Aug. 19, 20. Santa Rosalia. The warm sulphur springs, 

 or baiios (Gran Hotel de la Cueva, fair, chiefly patronized by 

 Americans) three miles above the town, on the Rio Conchos, 

 reached by stage, afforded one of the best collecting grounds 

 for dragonflies (12 spp.; northern limit of Erythrodiplax con- 

 nate; Libcllula flennda Hagen = L. comanchc nobis, see Ent 

 News, May, 1907. page 201, new to Mexico) of our trip. Much 

 cotton is raised in the vicinity. 



Aug. 21. Torreon (excellent new hotel Salvador) as a base 

 for 



Aug. 22. San Pedro in Coahuila. At the railroad station 

 (Monterey division of Mexican Central) are several ponds 

 wherein Odonata breed ; imagos of 10 species taken. Between 

 on and San Pedro, a great cotton-raising district. 



Aug. 23. En route for Zacatecas. 



Aug. 24, 25. Zacatecas, a quaint and picturesque town in 

 the midst of barren, silver-producing mountains, with almost 

 no insects. 



