18G 



French word. The note is trilled forcibly, and lasts a variable length of time. 

 One of these ineects was once observed while singing to its mate. At first 

 the song was mild and fret^uently broken ; afterwards it grew impetuous, 

 forcible and more prolonged ; then it decreased in volume and extent until 

 it became quite soft and feeble. At this point the male began to approach 

 the female, uttering a series of twittering chirps ; the female ran away, and 

 the male, after a short chase, returned to his old haunt, singing with the 

 same vigor but with more frequent pauses. At length finding all persuas- 

 ions unavailing, he brought his ^^erenade to a close." 



Average measurements: Length of body of male, !• mm.; of female, 12 

 mm. ; of hind femora, 9 mm. ; of ovipositor, 9 mm. 



8. Nemobus exiguus, Scudder. The Lesser Striped Ground Cricket. 



Nemobiu>i e.nguvs, Scudder, Boston Jour. Nat. Hist., VII, 1862, 429, 



(Not Acheta exigua, Say.). 

 Xemobius fasciatus exiguus, Fernald, Orth. N. Eng., 1888, 16. 

 Also a very common species and found in company with the preceding, 

 the habits of the two being essentially the same. From vittatus it may be 

 known by its much smaller size, lighter color, and by the last two segments 

 of the maxillary palpus being white. Moreover the ovipositor is much 

 shorter, being only one-half to two-thirds the length of the hind femur, 

 whereas in vittatus it is fully as long as that segment. A careful examina- 

 tion of a large number of specimens leads me to believe that these differ- 

 ences are constant, with no intermediate forms, hence the two species 

 should be separated. 



Length of body, male, 7 mm. ; of female, S mm. ; of hind femora, 6 mm. ; 

 of ovipositor, o to 4 mm. 



9. Nemobius fas( iatus, DeGeer. The Long-winged Striped Cricket. 



Nemobivs fasciatus, Scudder, Bost. Jour. Nat. Hist., VII, 1862, 436. 

 Fernald, Orth. N. Eng., 1888, 16. 

 McNeill, Psyche, VI, 1891, 6. 

 This species has not been seen by the writer within the boundaries of the 

 state ; but Scudder, he. cit., says that it has been taken at Delphi, Indiana. 

 From the two preceding species it may be known by the presence of the 

 inner wings, which extend beyond the end of the ovipositor. McNeil, loc. 

 cit., records it as being common about the electric lights at Eock Island, Illi- 

 nois. 



