SUBFAMILY I. TRYXALIXJE. 211 



cies, several of which are uow known to be synonyms. But one 

 occurs in the Eastern States. 



89. ERITETTIX SIMPLEX (Scudder), 1869, 305. Velvet-striped Locust. 



Short, rather robust. Pale brownish-yellow; dorsal surface of head 

 and thorax in the typical form with a pair of blackish-brown stripes be- 

 ginning at the base of vertex and extending back to hind margin of pro- 

 notum, these limited inwardly by the supplementary carinse of head and 

 pronotum; when the supplementary carinse of pronotum are absent, these 

 dark stripes are wanting, the occiput and disk of pronotum then being 

 wholly pale brown, but the sides of head and pronotum with a broad brown 

 postocular stripe extending back to base of tegmina; apical half of an- 

 tennae fuscous; basal half of tegmina often with an indistinct dark median 

 stripe bordered below with one of greenish-white; tibial spines tipped with 

 black. Pronotum with lateral carinae either subparallel or feebly yet evi- 

 dently bent inward just in front of middle; supplementary carinae usually 

 distinct, sometimes faint or wholly wanting; tegmina surpassing the tip 

 of abdomen about 3 mm. in both sexes. Length of body, , 1C 17, 9 . 

 22 24; of antennae, $, 5.5 6, 9,5; of pronotum, $, 4.5, $,5; of tegmina. 



$, 12.513, 9, 1317; of hind femora, $, 1012, 9, 1315 mm. 



(Fig. 83, fc.) 



Charlottesville, Ya.; Clarksville, Tenn., Apr. 21 May 24 

 (Fox)-, Fayetteville, Ark., April 20 (McXclU). The Arkansas 

 specimens were sent to me about 1900, under the name Eritettix 

 rirgatus Scudder. They agree in all particulars with specimens 

 of the typical form of E. simple.!- received from Fox. McNeill's 

 table (1897, 218) separating- the species of Entcltlx was based 

 largely upon the color of the pronotum and the presence or ab- 

 sence of its supplementary carinae, characters which are now 

 known to be exceedingly variable in the same species. There is 

 little doubt, therefore, but that the records of the E. virgatus of 

 Bruner and Hart (nee. Scudder) from Nebraska and Illinois refer 

 also to E. simplex as at present recognized by B. & H. Since they 

 have combined E. caritiatus (Scudd.) with sintpl<:r. there is but 

 the one species known east of the Mississippi, its known range 

 extending from New Haven and other points in Connecticut (Brit- 

 ton, 1904) west to eastern Nebraska and northwestern Arkansas, 

 and southwest at least to northeastern Alabama and Buckhead, 

 Georgia. 



Fox (1917) states that in Virginia E. simplex is "frequent in 

 old neglected fields and pastures, especially those overrun with 

 Andropogon and other coarse grasses." Behn & Hebard (1910a, 

 626) recorded it as locally plentiful at Sulphur Springs, N. Car., 

 where it occurred "in the low grasses of the treeless slopes and 



