1916.] NATURAL SCIENCES OF PHILADELPHIA. 211 



so recorded by Morse from Magazine Mountain, Arkansas. 75 The 

 tegminal length of the present scries of intermediates is as follows: 

 male, 12.; females, 12.5 to 12.7 mm. For the series of H. brevipennis 

 s.s. from Currahee Mountain, (leorgia, the tegminal length is: males, 

 8.4 to 9.8; females, 10 to 11.3 mm. 



The present insect is known to be distributed eastward along the 

 Gulf Coast as far as Live Oak, Florida, though from the country inter- 

 vening between coast and mountains in Georgia and Alabama the 

 species has not been recorded, while in the southern mountains 

 typical H. brevipennis is found to intergrade with the present race 

 far to the westward of this longitude. The very local nature of its 

 distribution, and the scarcity of the species in the east, creates 

 considerable difficulty when efforts to define its exact range are 

 made. One of the specimens recorded above was taken on sandy 

 soil among wire-grass and other low plants, the three others were 

 found in a somewhat similar environment, but in small clumps of 

 oaks about two feet in height on the border of a sink. 



Paratylotropidia beutenmuelleri Morse. 



We have before us two topotypic females of this remarkable insect, 

 taken by W. Beutenmliller near Black Mountain, North Carolina, 

 July, 1912. These specimens are in the Davis Collection and that of 

 the Academy of Natural Sciences of Philadelphia. 



The Gracilis Group of the Genus Melanoplus. 



We find that M. gracilis, sylvaticus, similis, viridipes and deceptus 

 form a group in the present genus which may be termed the Gracilis 

 Group, the species in relationship following the order given above, 

 of which gracilis is more widely separated from the others than they 

 are from each other. 



Scudder's placing of gracilis in his Plebejus Series and viridipes in 

 his Inornatus Series is wholly illogical. 



Melanoplus similis Morse. 



Bluemont, Virginia, VII, 1, 1914, (J. D. Rabun Bald, Rabun County, Ga., VII, 



^Hood), 1 9, [Hebard Cln.]. 1910, (W. T. Davis), 1 &. 



Clayton, Rabun County, Georgia, VI, Tuckoluge Creek, Rabun County, Ga., 



1909, (W. T. Davis), 1^,19. VI, 1909, (W. T. Davis), 2 9. 



The present specimens agree very well with Morse's description, 

 the cerci are slightly more slender than in the drawing given by that 

 author. 76 One of the females taken on Tuckoluge Creek was found 

 in a bush. 



75 Carnegie Inst. Wash., Publ. No. 68, p, 45, (1907). 



76 Carnegie Inst. Wash., Publ. No. 18, p. 46, fig. 6, (1904). 



