THE LOCUSTID.E AND GRYLLID.E (KATYDIDS AND CRICK- 

 ETS) COLLECTED BY W. T. FOSTER IN PARAGUAY. 



By Andrew Nelson Caudell, 



Custodian, Section of OrtJioptera. 



The Locustidse contained in the Foster collection number 176 speci- 

 mens, representing 28 species, while the Gryllidte comprise 69 speci- 

 mens, representing 11 species. The following paper treats of these 

 two families. The nonsaltatorial forms have previoush' been reported 

 upon," and the Acrididfe will soon be discussed in the pages of these 

 Proceedings by Professor Bruner. 



Family LOCUSTID^. 



Subfamily PH^.J^EROPTERIlSr^. 

 I. ISOPHYA HAMATA Giglio-Tos. 



Fourteen males, sixteen females, three nymphs. January, February, 

 March, August, and November. 

 These specimens agree almost perfectly with the description. 



2. ANIARA PROXIMA Brunner. 



Seven males, three females. February and October. 



The males are somewhat larger than the measurements given by 

 Brunner. The anterior tibge bear two or three distinct spines on the 

 upper outer carina, thus differing from the generic diagnosis, but the 

 radial veins are connate and the transverse veins are parallel, thus 

 referring the species to the genus Aniara. The cerci of the male are 

 simple, not furnished with a median process, as in the species of the 

 genus Hyperophora., but are long and slender. While the!?e insects 

 possess several characters at variance with those described for A. 

 proxima, they are nevertheless questionably referred to that species. 

 They ma}^ eventually prove to be quite distinct, generically as well as 

 specifically, but I have not thought it best to so consider them at this 

 time. 



«Journ. N. Y. Ent. Soc, XII (1904), pp. 179-188. 



Proceedings U. S. National Museum, Vol. XXX— No. 1450. 



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