40 



tered hairs on their surface. Auteunne rather short, and slightly 

 flattened. Pronotum acute angled behind. Wing covers narrow ; 

 costal half, green ; the sutural half, brownish. 



Chortophaga viridifasciata, De Geer. 



The Goat-Headed Grasslioj)per 



Fig. 1.3. 

 Chortophaga viridifasciata. 

 a. Larva. 

 h. Mature insect. 



(Fig. 15.) 



This exceed- 

 ingly variable in- 

 sect has received 

 numerous names, 

 but all the differ- 

 ent shades of va- 

 riation may be 

 reduced to two 

 forms, which are 

 known by the names rirgiiikma, Fabricius, the green form; 

 and infuscata, Harris, the brown form. 



The form virginiana is described as follows : — 

 Green ; wing covers with a broad green stripe on the outer mar- 

 gin, extending from the base be3'ond the middle, and including 

 two small dusky spots on the edge, the remainder dusky, but 

 semi-transparent at the end ; wings transparent, very pale green- 

 ish yellow next to tlie body, with a large dusky cloud near the 

 middle of the hind margin, and a black line on the front margin ; 

 antennae, fore and middle legs reddisli ; hind femora green, with 

 two black spots in the furrow beneath. Length, aliout one inch. 



Form IxFusCATA. Harris. 

 Dusky brown ; wing covers faintly spotted with brown ; wings 

 transparent, pale greenish yellow next to the body, with a large 

 dusky cloud near the middle of the hind margin, and a black line 

 on the front margin ; hind femora pale, with two large l^lack spots 

 on the inside ; hind tibiie brown, with darker spines, and a broad 

 whitish rins: below the knees. 



(ienus ExcopTOLoPiius. Scudder (1H75). 

 Head but little swollen above, front vertical above, roundly 

 sloping below, a little constricted above the antennsE ; eyes sepa- 

 rated by about their own width, moderately large, somewhat ellip- 

 tical ; antennae rather short and flattened ; top of the pronotum 

 nearly flat, the median carina alirupt, but not greatly elevated, cut 

 into halves by a distinct though slight notch ; lateral carinoe dis- 



