156 



Forty-fifth Report on tee State Museum. 



Literature. 



But little has been published of this insect, and no figure had been 

 presented of its early stages. Dr. Hagen, in his Sy^iopsis of the 

 Neuroptera of North America, in 1862, states: " The larva is unknown; 

 perhaps it is aquatic." 



The following year, 1863, Mr. Walsh described* the larva of a nearly 

 allied species, Ghauliodes rastricomis Ramb., frequently found in the 

 Southern States, and probably in Missouri, as Mr. Walsh had "bred 

 many specimens of the insect from the larva, which occurs under the 

 loose bark of floating logs, apparently beneath the surface of the water, 

 and retires under logs, etc., on the dry land to assume the pupa state, 

 forming a rude cell there, as does Corydalis cornuta (Linn.)." The 

 same species has recently been described and figured in its different 

 stages by Prof. C. M. Weed, from examples taken from under logs 

 lying under water in ponds in Ohio :f the figures, through permission of 

 the Ohio Agricultural Experiment Station are herewith given. 



'X-. 



Fig. 13. — Chauliodbs rastricornis: a, larva; b, pupa; c, male imago; d, female imago — all 

 in natural size. (After Weed.) 



The Canadian Entomologist for May, 1879, contains an abstract of a 

 paper read by Professor Riley before the American Association for 

 the Advancement of Science (the entire paper has not been published), 

 entitled: "Larval Characteristics of Corydalus and Chauliodes." In 

 this abstract some of the larval features of Chauliodes are given, and 



*Proceedings of the Entomological Society of Philadelphia, ii, 1863, p. 263. 

 i Bulletin of the Ohio Agricultural Exper. Station. Technical Series, vol. 1, No. 1, October 

 1889, pp. 7-10, pi. 1, fig. 3. 



