Tettigoniidae 285 



caught in wire traps placed outside a laboratory window, baited with 

 banana. 



Full-grown adults, if hungry, ate almost any living thing: spiders, 

 hairy caterpillars (Datana, Apatela), furry moths, bad-smelling stink 

 bugs, hard-bodied wasps (Vespa), huge cockroaches, and grasshoppers 

 as large as themselves. Some individuals which survived late in the 

 season when other insects grew scarce, relished fat chestnut worms, meal 

 worms, etc. 



M. E. D. 

 Reference 



For the feeding of mantids see also p. 242. 



Family tettigoniidae 



CEUTHOPHILUS* 



THE eggs of the majority of the species of these camel crickets are 

 deposited in the ground at a depth determined by the length of the 

 ovipositor. However, eggs have been found in rotten wood. Many of 

 the more strictly hypogeic species probably oviposit in their burrows. 

 Eggs of C. latibuli laid at night in cages in the laboratory hatched in 

 between two and four weeks. On the other hand it is highly probable 

 that many species normally overwinter in the egg stage, wholly or in part. 



Post-embryonic development varies in rate, depending on the amount 

 and nature of the food supply and presumably on temperature and 

 moisture conditions. Specimens of C. virgatipes reared with abundance 

 of food but under otherwise normal conditions reached maturity long 

 before adults were taken in the open and are far larger and differently 

 proportioned than any feral specimens seen. 



Observations on caged individuals of several species of Ceuthophilus 

 show that the members of this genus are immobilized by strong light, 

 are inactive by day but extremely energetic by night, are unaffected by 

 sound stimuli, but highly sensitive to air movements and other mechan- 

 ical stimuli, and to odors. 



All Rhaphidophorinae appear to be practically omnivorous. Blatch- 

 ley** states that caged Ceuthophilus fed upon meat as well as upon pieces 

 of fruit and vegetables, appearing to prefer the latter. My own observa- 

 tions accord with these; caged individuals of C. virgatirpes, C. latibuli, 

 C. peninsularis, and C. pallidipes ate with avidity cheese, butter, jam, 

 sweet fruits, fresh and dried meat, sugar, dead insects, and other items of 



♦Abstracted from Univ. oj Fla. Biol. Ser. 2, No. 1, 1936, by T. H. Hubbell, Uni- 

 versity of Florida. 

 ** Blatchley, W. S. The Locustidae of Indiana. Proc. Ind. Acad. Set. for 1892, p. 141. 



