1916.] NATURAL SCIENCES OF PHILADELPHIA. 219 



lacquered appearance in which a brownish and greenish suffusion 

 is apparent, the females range in general coloration from pecan 

 brown to warm sepia with markings of a darker shade. 



All of the material before us was taken in short-leaf pine woods 

 around a mill pond at Fayetteville, North Carolina. The males were 

 occasional in gall-berry and other bushes and were found usually two 

 or three feet from the ground, "sitting up warily or jumping away," 

 while the females were decidedly less abundant and less active and 

 by hiding sometimes eluded pursuit. 



Specimens Examined. — 20; 13 males, 6 females and 1 immature 

 female. 



Fayetteville, Cumberland County, North Carolina, IX, 9, 1911, 

 (R. & H.), 13 o", 6 9, 1 juv. 9 , type, allotype and paratypes. 



The Tribulus Group of the Genus Melanoplus. 



The present group contains M. obovatipennis, morsei, tepidus, 

 tribulus, tribidoides, devius and decoratus; the species in relationship 

 following the order given above, of which the first three species are 

 very closely related, the next three likewise, while the last species 

 is the most aberrant of the group. Scudder placed obovatipennis 

 in his anomalous Fasciatus Series, the relationships of the other 

 species, which are all more recent in description, have been correctly 

 though indefinitely given with the descriptions of the same, except- 

 ing M. decoratus, which species Morse considered more nearly related 

 to M. decorus. 



Melanoplus tribulus Morse. 



Pennsylvania. Georgia. 



Pink Hill, Newtown Square, VI, 19, Clayton, VI, 1909, (W. T. Davis), 1 <?. 



1908, (R.), 1 cf; VII, 15, 1911, Rabun County, VII, 1910, (W. T. 



(H.), 19. Davis), 1$. 



Maryland. Toccoa, VIII, 4-5, 1913, (H.), 1 



B f fpS-W 2 ' (J - °- H ° 0d) ' DJtafvm, 7, 1913, (R.), 1 juv. cA 



"SKl'l ft f'^'uT' (A - K - Jasp^VIII, 5, 1913, (R.), 1 juv. *. 

 tisner), 19, LU. b. iV M.J. gharp Mountaill) V III, 6, 1913, (R.), 



Virginia. 3 cf, 1 juv. 9 . 



Green Dell Farm near Pohick, VIII, Buckhead, VIII, 2, 1913, (R. & H.), 



25, 1912, (A. N. Caudell), 1 <?, 2mv cf, 1 juv.9. 



fU S N M 1 * lcinitv ot ©tone Mountain, \ 111, 3, 



' ',, _ ,. 1913, (H.), 1 juv. 9. 



horth Carolina. i >()St Mountain, Cobb County, VII, 



Weldon, VII, 24, 1913, (H.), 1 tf. 13, 1913, (J. C. Bradley), 19. 



Males of this insect are almost inseparable from males of M . devius, 

 for the characters which Morse gives in his original descriptions do 

 not hold. Females of the present species, however, differ greatly 



