[February 1S91 



PSYCHE. 



33 



the egg, though he points out several accom- 

 panying features in the adult. They are as 

 follows : — 

 Egg large, tubercular, indentations obscurely 



hexagonal Aphnaeus group. 



Egg similar, not tubercular. -Loxura group. 

 Egg small, tubercular, indentations sharply 



cut, usually trigonal Thecla group. 



Egg small, spiny, indentations sharply cut 



tetragonal Arhopala group. 



PROCEEDINGS OF SOCIETIES. 



CAMBRIDGE ENTOMOLOGICAL CLUB. 



10 February, iSSS.— The 135th meeting 

 •was held at 61 Sacramento St. Mr. S. Hen- 

 shaw was chosen to preside, and Mr. G. 

 Dimmock chosen secretary pro tern. 



Mr. Roland Thaxter of Cambridge, Mass., 

 was elected to active membership. 



Mr. J. H. Emerton read his address as re- 

 tiring president, having been unable to be 

 present at the January meeting. The ad- 

 dress was entitled "The study of species 

 and the study of cells" (see Psyche, v. 5, p. 

 77-7S). 



Mr. C. W. Woodworth exhibited his col- 

 lection of North American Cicadidae, which 

 contains all the described species. Numer- 

 ous notes were given upon the distribution 

 and other peculiarities of each species. 



Mr. J. H. Emerton showed mites taken 

 from a lizard and made some remarks upon 

 their peculiarities. 



Mr. Emerton also showed drawings of the 

 cribellum and calamistrum of various species 

 of Ciniflonidae. These organs are used by 

 these spiders for curling their web to make 

 it sticky. He also showed drawings of the 

 feet of certain species of spiders. 



Mr. S. Henshaw showed a fine specimen 

 of a vegetable parasite (Sphaeria) from a 



New Zealand species of Cossus or Hepialus. 

 Dr. H. A. Hagen spoke of the early stages 

 of the Odonata and especially of a pupa 

 skin of a large Libellula from China that he 

 had lately examined. In this species the 

 palpi did not meet, but each had five or six 

 teeth comparable to a comb. Otherwise the 

 insect belongs near Macromia, and this pe- 

 culiarity of an earlier stage furnished the 

 text for a discussion of how far position in 

 classification should be governed by the 

 earlier stages of animals and how far by adult 

 characters only. The discussion was partici- 

 pated in by several members. 



9 March, iSSS.— The 136th meeting of the 

 Club was held at 6r Sacramento St. Mr. 

 J. H. Emerton was chosen chairman. 



Mr. S. H. Scudder invited the Club to hold 

 its meetings hereafter at his laboratory, and 

 offered shelf room for its library; both offers 

 were accepted with thanks. 



Mr. J. H. Emerton spoke of Mr. McCook's 

 observations on the habits of Mygale hentzii 

 while kept in confinement (see Psyche, v. 



5> P- 55)- 



Dr. H. A. Hagen said that a specimen of 

 Ixodes in his possession, taken from the ear 

 of a man in July, 18S7, was still living, 

 though it had been without food for a pe- 

 riod of nearly eight months. 



Mr. S. H. Scudder showed a series ot 

 maps giving the distribution of New Eng- 

 land butterflies, and called attention to 

 some curious points in the range of several 

 species. 



Mr. C. W. Woodworth described retractile 

 processes on the abdominal segments of the 

 larva of Craesus latitarsus. and suggested 

 that they were probably defensive in func- 

 tion. Discussion on similar organs fol- 

 lowed. 



Dr. H. A. Hagen spoke of the larva of 

 Glyptus sulcatiis found in the nests of white 

 ants in south Africa. 



13 April, iSSS. — The 137th meeting of the 

 Club was held at 156 Brattle St. Mr. S. H. 

 Scudder was chosen chairman. 



