152 



Measurements: Female— Length of body, 24 mm.; of pronotum, 8.5 

 mm.; of hind femora, 21 mm.; of ovipositor, 22 mm. 



This species is represented in my collection by two females taken in 

 Vigo county, in August, 1891. It has not heretofore been recorded west 

 of the Alleghany Mountains. 



The above thirty-nine species comprise all the Locustida? which, to the 

 present knowledge of the writer, inhabit Indiana. Others undoubtedly 

 occur, especially in the southern half, and throughout the prairie region 

 of the northwestern part, where no collecting has been done. The pres- 

 ent paper will, perhaps, aid in the identification of the more common 

 kinds of this much neglected group of insects ; but collectors throughout 

 the state should be on the lookout especially for the following twelve 

 species whose known range implies that they are probably inhabitants of 

 Indiana ; and when the careful and systematic biological survey of the 

 state, now instituted, has been completed, a number of them* will no 

 doubt have been added to our known insect-fauna : 



1. Scudderia pistillate/,, Brunner. 



Should be looked for in the northern half of the state. Ke- 

 sembles furcata, but has much wider tegmina. Ranged from 

 New Jersey to Nebraska. 



2. Arhblycorypha scadderi, Brunei - . 



Resembles oblongifolia, but is smaller, with comparatively shorter 

 hind legs, and with ajiex of ovipositor more strongly serrate. 

 Common in Eastern Nebraska. 



3. Microcentrum retinervis, (Burmeister.) 



(See under M. laurifolixm.) Should be found in Southern In- 

 diana. 



4. ( 'yrtophyllus perspieillatus, ( Fabricius.) 



Has shorter and broader tegmina, more robust legs, and musical 

 organ of male broader than concavus. A southern form. 



5. XipMdium saltans, Scudder. 



Should be found in the prairie region northwest. Resembles 

 strictum, but is smaller, with longer tegmina, and shorter ovi- 

 positor. Common in Kansas and Nebraska. 



6. Orchelimum delicatum, Brunei". 



A more slender and smaller insect than vulgare, with a much 



