SCHISTOCERCA, SPHINGONOTUS AND HALMENUS 445 



ventral black stripe. Hind tibia pale yellowish-brown, punctate with 

 dusky-brown. Length of tegmina 17 mm. 



Variations (38 specimens). — The Charles specimens differ but 

 little in color from those from Tagus Cove, except that the genre are 

 invariably colored uniformly with the rest of the head, and the head 

 and thorax wholly lack the stripes that are indistinctly present on some 

 of the Albemarle specimens. The transverse bands of the hind femora 

 are lacking but the outer surface of each is generally clouded more or 

 less with black. The ventral femoral stripe is present on thirty-six 

 specimens (the other two have lost both metathoracic legs). This 

 character distinctly separates the Charles and Hood races from the 

 others ; a few of the Albemarle specimens have only a faint indication 

 of this stripe. The maculation of the terminal part of the tegmina is 

 in most of the specimens slight or obsolete; on the other hand the 

 two large blotches are generally very distinct and in most cases form 

 two complete cross bands. 



Length of the tegmina of 7nale, 13, 13, 13, 13, 13, 12, 13, 13, 13, 

 13, 13^ 13 mm.; oi female, 18, 19, 20, 19, 18, 18, 18, 19, 19, 19, 

 19, 19, 20, 20, 20, 19, iS, 19, 19, iS, 19, 20, 19, 20, iS, 17, 19= 19 

 mm. 



These figures show that the Charles form is larger than that from 

 Tagus Cove or Albemarle, and their larger size is apparent when 

 they are seen in the field. 



SPHINGONOTUS TETRANESIOTIS BARRINGTONENSIS 



var. nov. 



From Harrington Island. 



Description of the Type. Male. — Head and thorax uniform pale 

 reddish-brown, no dark markings anywhere. First and middle legs 

 of same color as the body, spotted with black. Outer surface of hind 

 femur pallid with faint indications of dark cross bands, inner surface 

 as in the other races, i. e., with a large elongated black spot anteriorly 

 and a smaller one back of the middle; no ventral stripe on the femur. 

 Posterior tibia colored as in the Chatham and Hood races; second 

 and third joints of the tarsus green. Tegmina brownish, with two 

 complete cross bands; terminal maculations few. Length of teg- 

 mina 17 mm. 



Variations (9 specimens). — The Barrington specimens differ from 

 the Hood specimens in the paler tegmina on which the dark basal and 

 median blotches form two well-defined cross bands. The sioecimens 

 present only a small amount of variation. One has a post-ocular 

 stripe on each side of the head ; otherwise there is no indication of 



