160 ENTOMOLOGICAL SOCIETY 



validity of the form cassinii. He also had always found the hole 

 at the top of the turret and never at the side. He referred to his 

 notes on the periodical cicada given at the meeting last June and 

 the general discussion of these insects which then took place. He 

 stated that Mr. Wm. T. Davis collected specimens of this cicada 

 upon Staten Island nearly every year. 



Prof. Hopkins said he had been led to believe that septendecim 

 appears every year in certain localities of West Virginia. 



Mr. Schwarz stated that he had seen the turrets from Missouri 

 from which the figures published by Riley were made. He 

 remembered that several of them had a hole on the side as shown 

 in the figure. There was no brood of this cicada, he said, on 

 the Rio Grande in Texas, though it had twice been recorded from 

 there. Both these records, however, were based upon another 

 species, which comes up in enormous numbers in that part of the 

 West at the time that septendecim emerges in the East. He 

 mentioned the fact that Prof. John B. Smith had observed a cer 

 tain species ovipositing in a rotten stump. The species found at 

 Williams, Arizona, Mr. Schwarz said, oviposits in oak twigs, 

 and is as fatal to the twigs as is our septendecim. 



Mr. Morris called the attention of the Society to a work 

 entitled, " Galls and the Insects Producing Them," by Melville 

 Thurston Cook, parts I and II of which have recently appeared 

 as Bulletin No. 15, Series 6, of the Ohio State University. 



Dr. Dyar showed mosquito larvae collected by Messrs. 

 Schwarz and Barber at Williams, Arizona, early in June, 1901. 

 It is probable that they are Culex hicidens Thomson, since the 

 imagoes of this and C. varipalpus Coquillett were the only 

 species taken at that place, and the latter is a small fly, not 

 attributable to this large larva. The larva belongs to the short- 

 tubed group, and is allied to canadensis and atropalpus by its 

 large comb of the eighth segment consisting of a large patch of 

 many little spines. It differs from these species and also from 

 all other mosquito larvae yet seen by the pecten of the air-tube 

 being formed of a row of hairs instead of the usual short-toothed 

 spines.* 



* Since this note was read, apparently the same species of larva has 

 been received from Messrs. Dupree and Morgan, labelled Culex consobri- 

 nus. Consobrinus occurs in Arizona in all probability, since the National 



