226 IOWA ACADEMY OF SCIENCES. 



to the face; front narrowing rapidly to the small clypeus; gente broad, 

 rounding below; pronotum oae-half longer than vertex, emarginate 

 behind; side margins short, not strongly carinated; elytra broader than in 

 lasoria, venation similar, weak. 



Color: Green; elytra sub-hyaline sometimes pallid. 



Genitalia: ultimate ventral segment of female very long on lateral 

 margin, posterior margin produced, broadly notched, more than one-half 

 the depth of the segment, apex of notch with a spatulate process two and 

 one-half times as long as breadth at base, two-thirds the 'length of the 

 notch, lateral margin of segment rounding to the acute lateral angles- 

 Male valve appearing as a narrow margin to the ultimate segment; plates 

 sloping, broad at base, convexly rounding, acutely pointed, about equaling 

 the pygofers. 



Described from forty-two examples collected at Ames, Iowa. 

 It has also been received from Colorado (Gillette) and 

 Nebraska (Bruner). 



THAMNOTETTIX LUSORIA N. SP. 



Form and general appearance of GhlorotettLv tergatus, but 

 with a sharper vertex and more general reddish cast. Length, 

 7 to 8 mm; width, 2 mm. 



Vertex slightly convex, one-half longer on middle than next eye, twice 

 wider than long, margins broadly rounded, but with a distinct, slightly 

 produced tip; front one-third longer than wide, three times wider at 

 ocelli than on clypeus; pronotum long, front margin strongly rounding, 

 posterior margin nearly truncate, sides long, carinated; scutelJum with a 

 quadrate light area on the disk, including two dark spots; elytra two and 

 one-half times longer than wide, much exceeding the abdomen, without an 

 appendix, first anteapical long, parallel margined. 



Color: Similar to Cblorotettix necopina; vertex olive brown with a 

 faint crescontiform band before the eyes; pronotum fulvous brown; elytra 

 sub-hyaline with a distinct reddish tinge, nervures light; below tawny 

 yellowish. 



Genitalia: Ultimate ventral segment of female long, slightly emarginate 

 behind, with a strong, angularly pointed, dark margined median tooth 

 about equalling the acutely rounding lateral angles; pygofers long and 

 narrow, nearly half the length of the abdomen; male valve very short and 

 broad, less than half the length of the ultimate segment; plates strong, 

 flat, one-half longer than breath at base, outer margins thickened, sparsely 

 hairy, points strongly divergent, usually a fuscous line on either side 

 arising from a spot at the base. 



Described from eight males and ten females all collected at 

 Ames, Iowa. 



THAMNOTETTIX LONGULA G. AND B. 

 Hemlptera of Colorado, p. 97. 



Form of lusoria but much smaller; coloration similar to T. 

 tenuis Germar. Length, 5 to 6 mm; width, 1.40 mm. 



