AQUATIC INSECTS IN THE ADIRONDACKS 553 



1842 S i s y r a Rambur, Ins. Neur. p. 414-15 



1851 S i 8 y r a Hagen, Stett. ent. zeit. 12 : 185-86 (bibliography) 



1857 S i s y r a Brauer, Fauna Austriaca ; Neur. p. 55 and p. 22 of introduction 



1858 S i s y r a Hagen, Ent. annual p. 25 



1861 S i s y r a Hagen, Synopsis Neur. N. Am. p. 197 

 1868 S i s y r a Brauer, Verh. k. k. zool.-bot. ges. in Wien. p. 398 

 1868 Sisyra McLachlan, Ent. soc. Lond. Trans, p. 166-67 (the fullest 

 characterization of the genus) 



Larva 



1839 Westwood, ''an anomalous insect found in theSpongilla fluvia- 



t ills" Mag. nat. hist. (2) 3:200; An. sci. nat. (2) 11:380 



1840 Westwood, Introd. modern classification of ins. 2:586 (notes on the larvae, 



with some bad guesses as to their place in the system) 

 1840 Hogg. ''Observations on Spongilla fluviatilis," Linn. soc. 



Lond. Trans. 18 : 390-92; Isis for 1843, review, p. 466 

 1842 Westwood. "Descriptions of some insects which inhabit the tissues of 



Spongilla fluviatilis," Ent. soc. Lond. Trans, 3 : 105-8, fig. 



(Names the larvae Branchiostoma spongilla e) 

 1842 Erichson. Wiegm. arch. f. naturg. p. 91 



1842 Rambur in Ins. Neur. p. 415, says the larva of Sisyra is aquatic 

 1844 Grube. Besehreibung einer auffallenden, an siisswasserschwammen leben- 



den larve, Wiegm. arch. f. naturg. 11 : 331-37, fig. (refers the larvae to 



Sisyra) 



1847 Haliday. On the Branchiostoma spongilla e, and on C o n i o p - 



teryx, Ent. soc. Lond. Trans. 5 : Proc. 31-32 



1848 Westwood. The Spongilla insect, Gardener's chronicle, p. 557 



1851 Hagen. " Uebersicht der neuereu litteratur betreffend der Neuroptera, 

 Liune." Stett. ent. zeit. 12 : 185-86 (under Hemerobius [Sisyra] 

 fuscatus Fabr., says that the larva is not known, but that it is prob- 

 ably the Branchiostoma spongillae of Westwood, since the 

 adults are very abundant all through the summer, and are found only 

 near water) 



1855 Brauer. *' Beitrage zur kenntniss des inneren baues und der verwandluug 

 der neuropteren," Schriften des zool.-bot. vereins in Wieu, p. 1-26, 5 pi. 

 p. 3, " Die fragliche S i s y r a-larve " 



1858 Hagen. "Synopsis of the British planipennes," Ent. an. p. 25 (under 

 Sisyra^ says: "Larva lives in the water (Branchiostoma 

 spongillae Westwood : cocoon ?") 



1866 Hagen. " Hemerobidarum synopsis synonymica." Stett. ent. zeit. 27 : 369- 

 462 (on p. 388, says tha'c the Branchiostoma is the larva of 

 Sisyra fusc-ata Fabr. ) 

 Subsequent papers repeat this statement, but I have l)een unable to find any 



account of the life history of the genus, or any description of the pupa or 



cocoon. 



Anyone who v^ill take the trouble to look through the published 

 records of the larva of this dusky little fly will discover that it has had 



