240 Journal New York Entomological Society. [Vol. xiv. 



Cuterebra buccata Fab. This fly has been reported^'from New Jersey but Mr. 

 Davis called attention to the beautiful and conspicuous colors of the eyes of a speci- 

 men taken at Lakehurst, N. J. 



Mr. Roberts after urging the importance of a careful study of the structure of 

 Coleoptera as shown in the antenna', legs and parts of the under surface of the body 

 and referring to the splendid results obtained therefrom by Dr. Sharp, Mr. Fall and 

 others, exhibited a few specimens of Dytiscidse and called attention to some of their 

 peculiarities of structure. A deep round depression or pit in the last abdominal seg- 

 ment of Ccelambus farctus male, at once distinguishes it from other species. Another 

 undescribed form, referred to as tuberculiventris had depressions so placed as to leave 

 a distinct broad, flattened, tubercle on each side of the same segment. With Ccelambus 

 dispar Lee. [H. dissimilis of G. and H. ) was mixed in most collections, a form 

 undescribed but which was also readdy separated by differences of the last segment. 

 C. dispar has a narrow but distinct groove extending perpendicularly nearly its whole 

 length while the species mixed with it and rather closely resembling it, has the same 

 segment shallowly and horizontally depressed. 



Mr. Roberts showed specimens of Fall's Ccelambus pedalis and C. femoratus and 

 called attention to their peculiar leg structure. Finally reference was made to the an- 

 tennal structure of Hydroporus diversicornis, difformis, oblongus and an undescribed 

 species from the middle west with abnormal antennae which at once separated them 

 from each other and all other species of the genus. 



The separating of two species of Hydroporus from Newfoundland almost identical 

 in general form, punctuation, color, etc., by differences in the antenna; and front tarsi 

 was especially interesting. 



Specimens of all of the species referred to were shown, both male and female, 

 but the characters spoken of were almost entirely those of the male. 



Meeting of April 3, 1906. 



Held at the American Museum of Natural History, Vice-President C. W. 

 Leng presided with nine members present. 



Mr. Davis exhibited two boxes of galls illustrating' the work of gall insects on 

 the following plants : rose, blackberry, raspberry and Potentilla. 



Mr. Davis also exhibited a number of species of Cicadas, among which were 

 Tettigea hieroglyphica, Cicada tibicen, C. pruinosa and C. canicularis. The three 

 last-named having for some time been considered as one species but Mr. Davis and 

 Mr. Joutel consider them three distinct species, basing their conclusions upon^color, 

 structural and vocal differences. 



Meeting of April 17, 1906. 

 Held at the American Museum of Natural History. President C. H. Roberts 

 in the chair with eleven members and one visitor present. 



The librarian reported the receipt of the following exchanges : 

 Stettiner Entom. Zeitung, Vol. LXVI, Nos. I and 2. 

 Bulletino della Soc. Entom. Italiana, Vol. XXXVII, No. I. 

 Insect World, Vol. X, No. 2. 

 Canad. Entom., Vol. XXXVIII, Nos. 3 and 4. 



