540 FAMILY VII. TETTIGONIID^E. THE KATYDIDS. 



Marshall and Vigo Counties, Ind., Aug. 7 Oct. 1 ; Washing- 

 ton, I). C., Aug. 30; Thomasville, Ga., Aug. Sept. 8; Dunediu 

 and Gainesville, Fla., Oct. 24 (W.8.B.). This species, as deter- 

 mined by R. & H., I have found to be scarce in Indiana, less than 

 half a dozen specimens having been taken; while Fox found but 

 one near Lafayette. It was not included in my Orthoptera of In- 

 diana as I had not then separated it from vulgare. My Indiana 

 specimens agree very well with the description of McNeill's sylra- 

 ticum which R. & H. have made a synonym of agile, except that 

 McNeill specifically states that in the male of his species the 

 wings do not exceed the tegmina, which is not true of the Indiana 

 males nor of those from Thomasville, Ga., received from Hebard 

 under the name of 0. nitidu'in Redt. The synonyms of 0. agile as 

 determined by R. & H. (1915a, 29) are 0. -glauciun Serv. 

 (1839, 524), 0. silvaticum McNeill (1891, 26), X. (0.) nitichiin 

 and spiniilosuin Redt. (1891, 503) and 0. tnolossioii R. & H. 

 (1907, 307), but until some one makes a careful examination of 

 DeGeer's type, if it be still in existence, the fixation of any Ameri- 

 can form as that species may still be considered an open question. 



In Florida 0. agile has been taken by collectors at a dozen 

 stations, but appears to be rather scarce and to be mostly con- 

 fined to the northern portion, though recorded as far south as 

 Detroit and Everglade. There it occurs in the undergrowth of 

 pine woods and among w r eeds in waste places; also in the saw- 

 grass along the edge of the everglades. 



The range of 0. agile, including its synonyms, is given by 

 R. & H. as extending from S. E. Pennsylvania and southern New 

 Jersey south and southwest to southern Florida and Louisiana 

 and north and west to northern Illinois and Wichita, Kansas. Of 

 silraticmii as occurring at Moline, 111., McNeill (1891, 20) says: 

 "I have found this Orclicllinniit first on corn, afterwards more 

 commonly in open places in woods. Its stridulation is quite dis- 

 tinct from that of rulgarc. It consists of the same two elements 

 but the zip is repeated many times very rapidly so as to make al- 

 most a continuous sound and the zec-e-c-e is comparatively short 

 and very constant, lasting about eight seconds. The first part of 

 the song lasts from three to five seconds." Of the habits of 

 agile, as found in Virginia, Fox (1917) wrote: "Usually abund- 

 ant, in wet or moist areas, especially in the tidr/mx <iiiieri<-<inns 

 Pers. formation of tidal marshes and the marginal fringe of suc- 

 culent grasses; but never occurring in true salt marsh-grass, 

 strict a (Ait.) ; also common in cat-tail, sedgy and 



