Vol. XXV] ENTOMOLOGICAL NEWS. 189 



Florida, made in January, 1904, March, 19 10, and July, 1912, 

 by Mr. Hebard and himself. The chief object of these trips 

 was, in addition to securing a representative collection of the 

 Orthoptera of the region, to determine to what extent the re- 

 gion was a meeting ground for tropical types and forms of 

 more northern distribution, by ascertaining what West Indian 

 types were present, what proportion of the whole Orthopteran 

 fauna they constituted and similar data regarding the forms of 

 mainland relationship. The periods of greatest and least ac- 

 tivity in animal life were also selected to determine the extent 

 of the seasonal difference in species and abundance of species. 

 An analysis of the distribution of the 108 species secured (all 

 previously recorded from the Keys having been obtained) show- 

 ed that the range of thirty-one species of northern affinity and 

 distribution had been extended to the extremity of the Florida 

 mainland, of four to the pine keys and of twenty-nine to the 

 scrub keys. Seven West Indian types were recorded from the 

 United States for the first time and more complete data were 

 secured on six species of similar relationship which had been 

 recorded on bare captures. Specimens illustrated the additions 

 to our fauna. 



Mr. Laurent exhibited a-series of fifteen male specimens of 

 the first brood of Pieris rapae, selected from sixty specimens 

 captured from April 19 to May 6, as well as a series of fifteen 

 male specimens of the second brood, selected from a like num- 

 ber of specimens collected from July 10 to 31. The speaker 

 stated that the maculations in the first brood averaged much 

 .smaller than those in the second brood, in some cases being en- 

 tirely wanting, thus representing the variety immacidata. In 

 the first brood, the under side of the inferior or hind wings is 

 nearly always of a dark gray or yellow color ; while in the sec- 

 ond brood, the color is generally light gray or almost white. 

 However, this only holds good with the males, as females of 

 both broods may have the under side of the inferiors yellow. 

 All the specimens were collected in the outlying districts of 

 Philadelphia. 



Dr. Skinner exhibited a new species of Argynnis from Utah, 



