FAMILY VII.— GRYLLID.-E. 255 



pillar very destructive to ferns, but which was exterminated 

 the first year." The latter was a Florida species. 



Dr. S. H.Scudder has kindly determined the former insect, 

 and he pronounces it Z)/est/'a/22mena/73ar/22orata(DeHaan) of 

 Japan. This instance shows how easy it is for insects to 

 reach new quarters, and, if these should suit their require- 

 ments, to find a new home. 



FAMILY VII. Gryllidx. 



CRICKETS, ETC. 



The members of this family of jumping orthoptera re- 

 semble the members of the previous famil}^ Locustidas, in 

 possessing long, slender and delicately tapering antennas; 

 they differ from them in the form of their wing-covers, the 

 number of joints in the tarsi, and in the form of the ovipos- 

 itor. The tegmina in the Gryllidae are horizontal, with the 

 outer portion bent abruptly downwards; the tarsi are 

 three-jointed, with the exception of CEcanthus, in which the 

 hind tarsi are four-jointed; and the ovipositor is usually' 

 lono and spear-shaped. The sexes differ greatly in structure, 

 the female having a long ovipositor and the venation of the 

 tegmina simple, while the male has the veins upon the hor- 

 izontal part of the tegmina so modified as to admit of their 

 being used as a musical organ. 



Prof Scudder uses the following table to distinguish the 

 sub-families : 



SUB-FAMILIES OF GRYLLID.E. 



A. Tarsi compressed, the second joint minute, compressed, 

 b. Fore legs fossorial ; female without ovipositor; 

 tympanum of male tegmina (when present) with- 

 out speculum Grjllotalpinae. 



bb. Fore legs gressorial; female with ovipositor, 

 though it is sometimes rudimentary'; tympanum 



