312 PROCEEDINGS OF THE ACADEMY OF [April, 



in specimens from the same locality a remarkable difference in 

 pronotal amplitude in the same sex is often present, 183 while the 

 branching of the mediastine vein is extremely irregular and cannot 

 be relied upon as in any way diagnostic. 184 



The normal coloration of this insect is p^.j and immaculate reddish 

 brown. Some specimens have the occiput, post-ocular portions of 

 the gense and dorsal portions of the lateral lobes of the pronotum 

 infuscated; in others these markings are very dark and the dorsum 

 of the pronotum and the tegmina and limbs are mottled and speckled 

 with the same shade. Frequently in such maculate individuals the 

 general coloration is grayish. 



The species is known on the Atlantic coast as far north as Matawan, 

 New Jersey; it is found far westward of the regions here considered. 



Of the present series we found the young common in undergrowth 

 of deciduous forest (Fredericksburg), young in undergrowth of pine 

 woods (Petersburg), few immature examples in green undergrowth 

 of heavy forest near stream (Weldon), few young in green grasses 

 and weeds in short-leaf pine woods (Goldsboro), on green sprouts in 

 "branch" filled chiefly with gums (Florence), young beaten from 

 bayberry (Isle of Palms), young numerous in undergrowth of dry 

 pine woods (Ashley Junction), young in luxuriant undergrowth of 

 gray-bark pine woods (Isle of Hope) and in bushes apparently killed 

 by a remarkable hymenopterous parasite, Rhopalosonia poeyi Cresson 

 (St. Simon's Island). 



183 In material before us we find the following contrasts in these dimensions : 

 Silver Springs, d", 2.3 by 3.4 and 2.7 by 3.9; Thomasville, Georgia, 9 , 2.4 by 3.6 

 and 2.9 by 3.8 mm. 



184 All or part of the free veins of the lateral field of the tegmina sometimes 

 merge with the mediastine vein at its base, and can then scarcely be distinguished 

 from the normal branches of that vein. The branches of the mediastine vein 

 also bifurcate, though rarely, while distad the vein itself frequently assumes 

 abnormal positions which, in themselves, bring about further differences in the 

 number of branches. The branches of this vein Saussure gives: for saltator, 

 cf 7 to 8, 9 4 to 6; for gryllodes, d" 10 to 11, 9 7 to 10. In our series are males 

 showing 8-9, 9-9 and 8-10 and females showing 5-7 and 6-7 of these branches, 

 such material not being from areas where intergradation would be likely to 

 occur, were geographic races present. 



