June, '07] ENTOMOLOGICAL NEWS. 261 



the dampness. Coleoptera were abundant in the cereals — especi- 

 ally on the vessel. 



Dr. Van Dyke explained the object of the expedition — that 

 it was to obtain all of the species possible before the natural 

 conditions become changed by settlement of the islands ; cattle, 

 dogs and pigs have already been introduced and fire may start 

 and destroy the fauna. 



Darwin did the first collecting here and was followed by 

 others. The present expedition was the most successful. Only 

 30 to 40 species were heretofore known, and Mr. Williams took 

 over 150 species and in large series. The collections are of value 

 to determine the age of the islands. It has been thought that 

 the fauna had been carried there by wind, birds and currents 

 and that the Islands were of volcanic origin. The Islands art 

 probably the result of subsidence and the flora and fauna re- 

 duced thereby in the opinion of the doctor. 



Mr. F. W. Nunenmacher gave an interesting account of his 

 collecting in the vicinity of Nogales, Arizona. He is especially 

 interested in the Cicindelidae, and took 17 genera, 49 species; 

 and 2,000 specimens. The following is his list of species : 

 Megiila maculata. M. z-ittigcra. Hippodanria convcrgens, Coc- 

 cinclla panciscana, C. sanguined, C. abdominalis, Hannonia cy- 

 anoptcra, Psyllobora n. sp., Chilocorus bivulncratus, C. cacti 

 Exochomus pilatti, Ex. bipustulatus, Brachycantha, 2 species ; 

 Hypcraspis, a species close to 4-z>ittatus; H. lateralis, H. 8-no- 

 tata, H. pinguis, H. mcdialis, H. globnla, H. plcuralis, H. fim- 

 briolata, H. montanica, and 4 species undetermined ; Hyperas- 

 pidius, 2 species ; Cephaloscymnus occidentalis, Smilia mar- 

 ginata, Scynuiilhts aterrimus, Scymnus, 14 species; Thalassa 

 montezuma, Epilachna corrupta, Novius n. sp. 



Mr. J. C. Bradley discussed his studies on the Evaniidae. 



Mr. L. E. Ricksecker exhibited Orgyia in all stages of de- 

 velopment. 



Miss Julia D. E. Wright reported the progress of the Santa 

 Clara Valley Entomological Club. 



Mr. F. W. Nunenmacher exhibited a fine series of Coccinelli- 

 ittt from Nogales, Ariz. 



F. E. Hi aisdell, M. D., Secretary. 



