FAMILY VI.— LOCUSTID^. 223 



terior portion of the thorax is considerably narrower than 

 the posterior. Color pale pea-green, sometimes wholly rose- 

 color. Lower carina of posterior femora with about ten 

 strong teeth. 



Measurements. — Length of body, 21 mm.; wing-covers, 

 about 38 mm. ; posterior femora, 30 mm. ; expanse of wings, 

 75-85 mm. 



Both species occur abundantly in Minnesota, frequenting 

 bushes and tall weeds in low places. They are very similar, 

 but the latter, besides being larger with longer wing-covers, 

 has also the ovipositor less serrate and less curved. Fig. 

 147 shows the female insect. 



Amblycorypha Uhleri Brunner. 



This insect, quite common in Maryland, New Jerse}^ and 

 the District of Columbia, has also been found in Indiana, 

 and a specimen in the collection of the writer is marked : 

 Minnesota, Aug. 17. No locality is given, however. 



Measurements. — Male: Length of body, 25 mm.; of 

 tegmina, 42 mm.; of posterior femora, 22.5 mm. ; of prono- 

 tum,6 mm. ; width of tegmina, 13 mm. Female: Length of 

 body, 30 mm. ; of tegmina, 46 mm. ; of posterior femora, 24 

 mm.; of ovipositor, 5 mm.; width of tegmina, 14 mm. 



GENUS Microcentram Scudder (1862). 



Size large. Wing-covers moderately expanded in the 

 middle, much longer than the posterior femora, and with the 

 outer border sloping off quite sharply, thus causing the tip 

 to be more pointed than in Amblycorypha. Vertex much as 

 in that genus, slightly furrowed. Eyes broadly oval, very 

 prominent. Hind legs slender and very short, the femora 

 but little more than half as long as the tegmina. Ovipositor 

 very short, bent abruptly, bluntly pointed, and with the 

 apical third finely serrate above. Anal plates of male not 

 prolonged. 



