190l] ENTOMOLOGICAL NEWS. 325 



ward (Paniala, Tramea, Hydrobasileus, Tauriphila, Rhyothetnis, Mia- 

 thyria, Antidylhemis, Pseudothemis). C. Palpopleurinae having the cos- 

 tal margin sinuated before the nodus {Palpopleura, Zenithoptera, Diasta- 

 tops). D. Libellulinae, the remainder of the family, comprising more 

 than 80 genera {Neuroihemis to Urothemis Brauer). The Libellulinae 

 are grouped as a. Libellulae, having the sectors of the arculus of the front 

 wings not stalked or but slightly stalked, and b. Libellae in which there is 

 a long stalk at the origin of those sectors. The Libellae in turn are either 

 Libellae verae (in which the triangle of the front wings remains triangular, 

 or if converted into a quadrilateral by the angulation of the anterior side, 

 the two limbs are of unequal length) or Nannophyae (in which the triangle 

 is converted into a quadrilateral by the angulation of the anterior side 

 into two limbs of equal length). This division, as the author himself 

 states, allies the Nannophyae secretae of his paper of 1889 (Ent. Nach., 

 XV, pp. 245-263) with the normal triangle-possessing Libellae, rather than 

 with those genera resembling Nannophya in the shape of the " triangle." 

 —P. P. C. 



Mkgachile in Alaska — In an article, Arctic and Sub-Arctic Bees, 

 Nature, London, November, 1898, Prof. Cockerell called attention to the 

 fact that only Bombus, among bees, is on record as occurring in the 

 northern latitudes of America. The following list should prove of inter- 

 est in this connection. 



The species were collected by Mrs. J. W. Kirk at Eagle City, Alaska, 

 65° 30'' N. Bombus consitnilis Cress, 9 ! Bombus flavi/rons Cress $ ; 

 Bombus howardii Cress 9; Megachile vidua Sm., Brit. Mus. Cat. Hym., 

 i, 192 9; of which Megachile frigida Sm., id., i., 193 "S ; and Megachile 

 frigida Cress, Trans. Am. Ent. Soc, Supp. Vol. 1887, p. 303 9 c? ^^^ 

 synonyms. — H. L. Viereck. 



Doings of Societies. 



A meeting of the American Entomological Society was held 

 October 24, 1901, with Dr. P. P. Calvert, President, in the 

 chair. Eighteen persons were present. The President read 

 the following letter from Mr. E. T. Cresson : " I herewith pre- 

 sent to the American Entomological Society my entire collec- 

 tions of Hymenoptera, now on deposit with the said Society, 

 with the understanding that unique specimens of any species 

 or varieties of species, whether tj-pes or otherwise, shall not be 

 loaned or taken from the building in which the collections are 

 kept." This valuable collection was gratefully accepted and 

 the Secretary was directed to suitably convey to Mr. Cresson 



