502 McNeill 



This species is closely related to X. nemorale Scudd., from which 

 it differs strikingly in color. It is also readily distinguishable by the 



Fig. 42. Xiphidiutn exitiosuni, female, lateral view. (X3O 



length of the tegmina which are much shorter in the male and much 

 longer in the female, and by the longer and straighter ovipositor. 



Measurements. — Length of body, S 15 mm., 9 17; tegmina, $ 6, 

 $ 8; hind femora, $ 12, 9 16; length of ovipositor, 12. 



Indefatigable, i female, 2 nymphs; James, 2 males, 2 females, i 

 nymph. 



GRILLIDiE. 



Subfamily GRILLIN.^:. 



GRYLLUS GALAPAGEIUS Scudd. 



This species is represented in the collection by a considerable series 

 taken in seven of the islands. The variation in size is considerable as 

 indicated by the measurements, and the color variation (especially 

 among the immature) is quite marked. Less than one-third of the 

 adults (three males and three females) are winged. The obscure, 

 minute, reddish spots are always present in the females, but are gen- 

 erally entirely wanting in the male. On the other hand, while the 

 females show considerable uniformity in the color of the tegmina, these 

 are entirely black in males from Albemarle and Narboro, and wholly 

 testaceous in a single male from Culpepper. The variation in color 



