428 SNODGRASS 



lete on most of the specimens, but the median stripe of the vertex is 

 somewhat more distinct. The black dorsal spots of the posterior 

 femora are not united in any of the specimens by a lateral black band. 

 The maculation of the tegmina is very distinct but the spots are not so 

 large as on the Chatham Island specimens, resembling more the Hood 

 Island form in this respect. The antennae are either uniform dusky 

 throughout or have the basal segments pale yellowish and those beyond 

 bordered distally with the same color. 



Length of tegmina of tnale^ 27, 29, 28, 27, 29, 27, 27, 27 = 27.5 

 mm. ; oi female, 35, 34, 32, 34, 35, 33 = 34 mm. 



Length of prozona : 6, 6, 5.5, 7, 6, 7, 7, 6.5, 6, 6 = 6.3 half mm. 



Length of metazona: 7, 7, 6.5, 8, 6.5, 7.5, 7.5, 8, 6, 6.5 = 7.1 

 half mm. 



Prozona: metazona = .88. 



The above figures show that there is little difference in size between 

 the Chatham and Tower specimens. The relative length of the meta- 

 zona, however, is considerably greater than in the Chatham specimens, 

 where the metazona is but slightly longer than the prozona. In this 

 respect also the Tower form is midway between those from Chatham 

 and those from Hood. Scudder showed that this is true of the speci- 

 mens he had. As also stated by Scudder, the space between the eyes 

 of the Tower specimens is relatively greater than that between the eyes 

 of the Chatham specimens. All of the latter have the space between 

 the eyes on the vertex much narrower than the narrowest part of the 

 frontal costa, while, in the Tower specimens, this space varies from 

 the width of the frontal costa to slightly narrower. 



SCHISTOCERCA LITEROSA PUNCTATA Scudder. 



Schistocerca literosa punctata Scudder, Bull. Mus. Comp. Zool., Vol. xxv, 

 p. 16, 1893. (Hood Island.) 



From Hood Island. 



Description of a Typical Specimen. Male. — The coloration is 

 very similar to that of the Chatham and Tower specimens. The 

 Hood specimen presents the following characters : on the head, in 

 addition to the pale yellowish area of the posterior part of the gena, 

 there is a similarly colored but poorly defined area beneath the eye ; a 

 median stripe on vertex extending on front to between antennae of same 

 color, on vertex this stripe bordered on each side by a band of dusky, 

 between which and the post-ocular stripe is a broad yellow area ; lower 

 part of front dusky ; clypeus and labrum dull brownish-yellow, mot- 

 tled with black ; metazona uniform brown ; prozona same color on 



