1875.] 513 [Scudder. 



Length of body, ef, 15.5 mm.; 9, 19.25 mm.; of antennas, ?, 

 6 mm.; of tegmina, c?, 13 mm.; ?, 17 mm.; of hind femora, cf, 10 

 mm.; ?, 12 mm. 2 cf, 1 9, taken March 24 and June 6, at Dallas, 

 Texas, by J. Boll. 



35. Psoloessa ferruginea. Summit of the head with a slight 

 medio-dorsal carina extending nearly or quite to the tip of the vertex; 

 the latter about as broad as one of the eyes on a top view, the sides 

 raised and parallel for a short distance beyond the eyes, then meet- 

 ing at less than a right angle, the edges still raised. Head dark 

 brown with light brown mottlings and a broad, equal, medio-dorsal 

 stripe, of the width of the vertex, extending from its tip backward, 

 edged laterally with blackish; antennas dusky, joints 4-6 about as 

 long as broad. Pronotum generally light yellowish brown above, the 

 lateral carina? slightly paler, the latter edged rather broadly on the 

 outer side anteriorly, on the inner side posteriorly with black; middle 

 of sides of pronotum with some obscure dark markings, the lower 

 border flecked with ashen ; tegmina variable, the portion forming 

 the superior field, when closed, of the color of the dorsum of the pro- 

 notum ; the remainder generally much darker, occasionally with dark 

 dots along the middle field and darker veins ; wings hyaline, the 

 veins along the costal area broadly, the rest delicately, black ; the 

 extreme apex of the wing dark fuliginous ; legs brownish gray mot- 

 tled with dark brown, the hind femora dotted externally with black- 

 ish and the spines black tipped. Abdomen ferruginous above, the 

 sides flecked with brown ; beneath paler. 



Length of body, d, 14 mm. ; ?, 21.5 mm.; of antennas, d, 6.2 mm.; 

 9, 6.5 mm.; of tegmina, c?, 13 mm.; 9, 17 mm. ; of hind femora, cf, 

 10 mm.; 9, 12.2 mm. 1 d", 3 9, taken March 24 and April 25 and 

 29 at Dallas, Texas, by J. Boll. 



36. Psoloessa maculipennis. Summit of the head with a 

 slight medio-dorsal carina extending to the middle of the fastigium 

 of the vertex ; the latter about as broad as one of the eyes, short, 

 longitudinally obovate, a little angulated in front, pretty deeply 

 depressed, with sharp sides and a median transverse furrow. Head 

 dark reddish brown, much and irregularly mottled with darker 

 brown; antennae fuscous growing darker toward the tip, joints 4-6 

 about half as long as broad. Pronotum uniformly brown above, 

 excepting a pair of small oblique black dashes situated just behind 

 the middle of either side ; the sides of the pronotum as in P. ferru- 

 ginea', tegmina ash-brown, sprinkled rather, profusely, excepting in 



PROCEEDINGS B. S. N. H. — VOL. XVII. 33 AUGUST, 1875. 



