16 NORTH AMERICAN ACRIDIID^E. 



the larger part of the austral zones of the Southeastern States where- 

 ever the physical condition of the soil presents a suitable environ- 

 ment, being equally as much at home on dusty roadsides, sun-beaten 

 waste lands, and the sandy river washes of the interior as under 

 the nodding sea oats (Uniola paniculata) of the Virginia cape, the 

 palms of Tybee, or on the snow white strand at Fort Barrancas. 

 Plate 3, Fig. 2 shows one of its inland habitats, a sandy river-wash 

 at Morganton, N. C. (See also PI. 3, Fig. 1, and PI. 4, Fig. 1). 

 On and near the coast Psinidia fenestralis and Scirtetica picta are 

 frequently associated with it. 



Hygrophilous Geophiles. This group contains the Tettiginae, 

 whose local distribution is apparently controlled by the presence of 

 conditions favoring the growth of algae and other delicate organisms 

 such as grow upon damp, humus-enriched soil, conditions favored 

 by a considerable degree of moisture and a moderate exposure to 

 light. Even the humus itself is devoured (Hancock). Among 

 them we find species such as Paratettix cucullatus, frequenting the 

 shores of ponds and streams, be they sandy or muddy ; others, like 

 Tettigidea lateralis (and Tettix granulatus of the Northern States) 

 prefer wet meadows and swales; and some, like Nomotettix crislatus 

 and some species of Teitix, inhabit drier soils of arenaceous loam. 



Phytophii^ous Division. 



The phytophilous locusts fall very naturally into campestral 

 and sylvan groups. 



Campestral Phytophiles. The campestral species, like those of 

 the geophilous series, may be arranged in hygrophile and xerophile 

 groups, though perhaps not quite so successfully. 



Xerophilous Phytophiles. A species belonging to this group 

 and of much interest in the Southern States is Hesperotettix pra- 

 tensis. This locust has a very wide distribution in the western part 

 of the country, from Texas to Washington and from California to 

 Indiana, and was secured last summer in the Southeastern States 

 amid conditions much resembling those of the arid West. A glance at 

 PI. 5, Fig. 1 will show the desert-like surroundings in which it makes 

 its home along the Gulf shore of Florida, where it is not uncommon 

 among the xerophytic strand vegetation represented by Conradi?ia 

 canescens, Quercus myrtifolia, Hex vomitoria, Baptisia villosa, and 

 Ceratiola ericoides* the pungent aroma of the latter vividly recalling 

 that of the creosote-bush (Larrea) of the Sonoran deserts. 



* Plant species kindly identified by Mr. J. M. Greenman, of Harvard 

 University. 



