224 The Ohio Journal of Science [Vol. XX, No. 7, 



pulp and often the entire insect is eaten. Larva of Elateridae 



and Cucujidae were fed this spider. The body walls of these 



insects are strongly chitinized but the entire larva was frequently 



eaten. One of them also ate an entire grasshopper. When the 



larva was not entirely eaten as was sometimes the case, a slit 



was made down the dorsal side of the larva and the soft parts 



taken out. Although it would not eat Coleoptera with strongly 



chitinized body walls and hard elytra, such beetles as Chlcenius 



sericcBus which have less strongly chitinized body walls were 



sometimes eaten. 



Some of the beetles which were offered to it but were not 



eaten : 



Nytcobates pennsylvanicus, Telraopes tetraophthalmus, Evartus sodalis,. 

 Pterostichus stygius, Pterostichus liicublandus, Rhynchites bicolor, Lucanus 

 dama, Chauliognathus pennsylvanicus, Epicauta pennsylvanica, Myrmi- 

 cidcB were offered but were not eaten. 



One of these spiders which was kept in captivity ate in a 

 single day, a cockroach (Ischnoptera pennsylvanica) and three 

 large grasshoppers. Two of the grasshoppers belonged to the 

 Acrididce and the other one was one of the Locustidae. One of 

 the Acrididae was nearly as large as the spider itself. These 

 insects were eaten on June 29th. After that the spider would 

 not eat anything and died on July 5th. 



Another one was fed entirely on larva of Elaterid^ for one 

 week to find out how many would be eaten in a limited period 

 of time. These larvae were kept in the cage all the time and 

 the spider had the opportunity of eating as man}^ as it wanted. 

 Larvas were eaten on the dates given as follows : One larva each 

 on July 22, 23, 24, 25, 27, 29. 



These larvas were about an inch in length and were likely 

 the larvae of Ludia attenuatus. Sometimes the whole larva was 

 eaten and at other times only the visceral parts. 



Phidippus audax Hentz. 



Phidippus audax is the most common jumping spider in 

 central Ohio. The three white spots on the back of the abdomen 

 and the green chelicerae make it a spider that can be easily 

 recognized. 



It is a common spider but we could scarcely say abundant. 

 It is most often found on rail fences, under sticks, on fence 

 posts and on the outside of buildings. Wood seems to have 



