430 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
power to use them. The long-winged form, while not common, 
cannot be considered rare, and sometimes several examples may 
be found in a small colony. 
This Locust must be watched in its own home to have its 
beauty and the significance of its form and coloring fully appre- 
ciated. Its singular, almost grotesque, yet graceful shape 
interests even the casual observer; and its coloring of pale gray 
or lilaceous drab, often varied with darker brown and dull 
white, especially frequent in the female, gives it the appearance 
of being clothed with a delicate bloom. The possibility of dis- 
covering something regarding its stridulatory habits should 
lend interest to the acquaintance, little or nothing being known 
regarding them, though the apparatus is highly developed. 
The young are not uncommon in June and July, and adults 
can be found from the first week in July until at least the middle 
of September. It is known from Fryeburg, Me.; Jaffrey, N. H.; 
Woodstock, Vt.; and many localities in Connecticut and Massa- 
chusetts, including the island of Martha's Vineyard. 
Velvet-steiped Locust. 
Eritettix simplex (Scudder). 
Figs. 78, 79. 
Gomphocerus simplex Scudder, Trans. Amer. Ent. Soc, vol. 2, p. 305 (1869). 
Eritettix carinatus Britton, Psyche, vol. 11, p. 23 (1904). — Walden, Bu11._ 
Geol. Nat. Hist. Surv. Ct., no. 16, p. 75 (1911). 
Head sharp-pointed from above. Vertex horizontal, project- 
ing well in advance of eyes, lateral margins and mid-carina 
elevated, especially in male. Median carina continued on 
crown and occiput, flanked by a pair of equally well-developed 
supernumerary carinae arising opposite anterior end of eyes. 
Prpnotum with sides parallel, the lateral carinae very slightly 
incurved at middle; lateral and median carinae equally developed, 
cut once by principal sulcus; a pair of low supernumerary 
carinae continuous with those of the crown of the head. Teg- 
mina and wings fully developed. Hind femora rather stout. 
Subgenital plate of male short, very bluntly conical. Ovipositor 
very little exposed. 
Color: brown, often with pale gray or yellowish stripes on 
