96 ENTOMOLOGICAL NEWS [ Feb., 
germ cells. Prof. P. P. Calvert (University of Pennsylvania), 
Newly Found Odonate larvae of special interest from Costa 
Rica. Larvae of Cora with anterior abdominal tracheal gills 
and of Mecistogaster modestus from water between leaf bases 
of arboricolous bromeliads were described and the transfor- 
mation of the latter species shown by a series of photographs 
from life. Dr. A. Petrunkevitch (Yale University) The 
senses, courtship and mating in tarantulas, and A case of re- 
generation in tarantulas, illustrated by very interesting photo- 
graphs and demonstrations. Prof. T. H. Morgan (Columbia 
University), The origin and heredity of four wing mutations 
in Drosophila, and The heredity of red eyes, white eyes and 
pink eyes in Drosophila. 
At the meeting of the American Society of Naturalists held 
in conjunction with the Eastern Branch of the Zoologists, 
Prof. Morgan contributed a paper also dealing with Droso- 
phila under the title: The application of the conception of pure 
lines to sex-limited inheritance and to sexual dimorphism, 
while Prof. J. H. Gerould (Dartmouth College) spoke on 
Polymorphism and inheritance in Colias philodice. 
For the meetings of the Central Branch of the American 
Society of Zoologists in conjunction with Section F, Zoology, 
A. A. A. §., held at Minneapolis, Minn., December 28, 29 and 
30, 1910, the following entomological papers were announc- 
ed: J. F. Abbott (Washington University), Poulton’s Theory 
of the Origin of Mimicry in Certain Butterflies; S. R. Wil- 
liams (Miami University), Comparison of the Arrangement 
of the Eggs in the Nests of Japyx sp. and Scutigerella im- 
maculata; S. J. Hunter (University of Kansas), On the 
Transition from Parthenogenesis to Gameogenesis in Aphids. 
II. (Lantern); Fernandus Payne (University of Indiana), 
The Pomace Fly Bred in the Dark for 67 Generations; C. E. 
McClung (University of Kansas), Chromosome Individual- 
ity; J. A. Nelson (U. S. Dept. of Agriculture), Origin of the 
Rudiments of the Mesenteron of Honey Bee; W. J. Baum- 
gartner (University of Kansas), Spermatogenesis in the Mole 
Crickets. 
