ORTHOPTEEA OF INDIANA. 447 



Measurements: Male— Length of body, 12 mm.; of wing covers, 

 12.5 mm.; of hind femora, 8.7 mm.; width of wing covers, 5.5 mm. 

 Female — Length of body, 14.5 mm.; of wing covers, 14 mm.; of hind 

 femora, 10 mm.; of ovipositor, 5.5 mm. 



Fig. 115. (Ecanthuxniveiis CDcG.) Male and female. (After Beutenmiiller). 



While the snoAvy tree cricket occurs in all parts of Indiana, it ap- 

 pears to be less common in the State than either 0. fasciatus or 0. 

 quadripunctatiis, and much of the published literature relating to it 

 has doubtless been of these two species, especially the latter. Like 

 the other members of its genus niveus reaches maturity in southern 

 Indiana about July 1st, and in the central part a fortnight later, and 

 exists in that stage until aftt-r hea\'y frosts. In the writer^s experi- 

 ence, the females are more plentiful than the males, the latter being 

 more often heard than seen. During the day they keep themselves 

 hidden among the foliage and flowers of various plants, but as night 

 approaches they come forth and the male begins his incessant, shrill, 

 chirping note, which he continues with little or no intermission till 

 the approach of morning warns him to desist. Professor McNeill, 

 loc. cit., has given an excellent description of the songs of the differ- 

 ent species of CEcanilius. "That of niveus," he says, "is the well- 

 known t-r-r-r-e-e, i-r-r-r-c-e, repeated without pause or variation 

 about seventy times in a minute. It is heard only at night and occa- 

 sionally on cloudy days, but in the latter case it is only an isolated 

 song, and never the full chorus of the night song produced by many 

 wings whose vibrations in exact unison produces that characteristic 

 ■^rhythmic beat,' as Burroughs has happily phrased it." 



Fitch, writing of the note of the same insect in New York, has 

 said: "In the southern part of our State the song of the snowy tree 

 cricket begins to be heard as early as the first of August. Perched 

 among the thick foliage of a grapevine or other shrubbery, some feet 

 up from the ground, and remaining in the same spot day after day, 

 its song begins soon after sunset and before the duskiness of twilight 

 arrives. It is distinj3tly heard at a distance of several rods, and the 

 songster is always farther off than is supposed. Though dozens of 

 other crickets and katydids are shrilling on every side at the same 

 time, the peculiar note of this cricket is at once distinguished from 

 all the rest, consisting of repetitions of a single syllable, sloAvly ut- 



