AQUATIC IXSECTS IN N^SW YORK STATE 483 



radius, cells of costal region partly with one white spot, never 

 two, other cells of front pair and in apical region of hind pair 

 with w^hite dots; cross veins between all branches of radius in 

 front pair, about 30 to 31, media with four branches, CUi with 

 five or six accessory veins. Length to tip of wings 75 to 85 mm; 

 alar expanse 110 to 140 mm. 



Kepublic of Colombia, Venezuela, Chapada, Brazil, " S. Catha- 

 rina, Theresopolis, Fruhstorfer, 1887." Several specimens in 

 the Museum of Comparative Zoology. 



C. ancilla Hagen, Synopsis Neur. N. Am. p.321 {nomen nudum), 

 must still remain undescribed, as the only known specimen is in 

 the Hagen collection and is too much injured for use. This speci- 

 men is from Paraguay, and it is hoped that other specimens may 

 be discovered there. 



Bibliography of the family Sialididae 



American Naturalist. 1867. 1 :436-7. Figures ofC. cornuta larva 

 and adult. 



Banks, Nathan. Am. Ent. Soc. Trans. 1892. p.l9. A synopsis, cata- 

 logue, and bibliography of the Neuropteroid insects of temperate North 

 America. Also a reprint of the same. 



Am. Ent. Soc. Trans. 1897. 24:22. S. concava, n. sp. 



Blanchard. In Gay's Hist. Chile (q.v.). 



Brauer. Neuroptera Austriaca. 1857. p.52. Also Verh. Zool. Bot. Gres. In 

 Wien. 1856. p.397. 



Verh. Zool. Bot. Ges. in Wien. 1868. 18:361-413. A synopsis of 



the genera of Neuroptera. 



Sitzungsberiehteder mathematisch-natur-wissenschaft-Iichen clasee 



der k. Akademie der Wissenschaften (Vienna). 1878. Band 67, Abth. 1, 

 p.205. Neuromus dichrous n. sp. from Borneo. 



Burmedster, Hermann. Handbuch der Entomologie. Neuroptera. 1839. 



2:947-51. 

 Comstock, J. H. Introduction to the Study of Entomology. 1888. 



p.219-21. 



Manual for the Study of Insects. 1897. p.l76-7S. 



& Kellog-g, v. li. Elements of Insect Anatomy, ed 1. 1895. ch.. 



3. p.28^4.5. Ed. 3. 1899. p.31-53. 



& Needham, J. G. The Wings of Insects. Am. Nat. 1898. 32:44, 



fig.l, wing of pupa of C. cornuta. Reprint of same 1899. 



Cuvier, G. L. C. F. D. L« Regne Animal, Masson. 1836-49. pl.105, fig.2. 



Vol. 11 to 14 on Insects. 

 De Geer, Carl. M6moires pour servir k I'historie des Insectes. Stock- 

 holm. 1773. 3:562. pl.27, fig.3. H. pectinicornls. 

 French edition in Boston Athenaeum Library. German edition (1730) in Boston Public 

 Library. 



Drury, Drew. Illustrations of Natural History. I.iond. 1773. Also West- 

 wood edition. 1837. 



