XVlll 



LIST OF ILLUSTRATIONS 



PAGE 



Pair of Varied-wing Locusts 



(Arphia xanthoptera) .... 353 

 Blatchley's Locust {Melanoplus 



blaichleyi) 355 



Two-striped Locust {Melanoplus 



biriftatu.s) 357 



Lonf;-horned Locust 361 



Mottled Sand Locust (Spbara- 



gemon xcyomingianum) . . . . 363 

 Boll's Locust {Spharagemon 



bolli) 365 



Clear-wing Locust {Cainnula 



pellucida) 367 



Leather-colored Locust {Schis- 



focerca alutacca) 369 



Short-wing Brown Lwust {Ste- 



nobothrus curtlpcuni.i) .... 371 

 Clouded Locust (Encoptolophiis 



sordidus) 373 



Grass Stems, showing <lewdrops, 



the drink of grasshopi)ers. 



Initial drawing 375 



Mole Cricket {Gnjllolatpa borc- 



alis); long-wing form .... 377 

 Striped Meadow Cricket .... 37!) 

 Stems of blackberry, horsewood, 



and goldenrod, stripjjcd of 



their leaves to show the holes 



made by the striped meadow 



cricket {Occanthus fascial us), 



during oviposition 381 



Penn.sylvania Field Cricket 



(Ciryllus pfniisylraniciis) . . . .'586 

 Night home of the Katydids. 



Initial drawing 388 



Female Oblong-winged Katydid 



{AmlAycorypha oblongifolia) on 



Dandelion 389 



PAGE 



Texan Katydid as viewed at night 

 on flower of horse mint .... 390 



Pair of Oblong-winged Katydids 

 {Amblycorypha oblongifolia) on 

 monkey flower {Mim ulus rigens) 391 



Short-winged Green Locust {Di- 

 chromorpha viridus) 393 



Landscape, showing habitat of 

 short-winged green locust . . 394 



Quaker, or Sulphur-winged Lo- 

 cust (Arphia sulphurea) . . 397 



Landscape in the dune region, 

 showing typical habitat of 

 quaker locust 398 



View, showing habitat of pasture 

 locust 399 



Pasture Locust {OrphucUa 

 speciosa) 401 



Short-horned Locust ( Tryxalis 

 brrrirornis) 403 



Home of the short-horned locust 405 



Green-legged Locust {Melanoplus 

 riridipcs) 407 



(Jreen-striped Locust {Cltorto- 

 phaga riridifasciata) 409 



Landscape in the dune region in 

 April, showing habitat of gran- 

 ulated grouse locust 411 



Row of (iranulatetl Grouse Lo- 

 custs {Tiirix granulata). show- 

 ing the median striped form . 412 



Row of Ornate (irouse Locusts 

 (Tclrix ornata), showing many 

 color forms and hybrids . . . 412 



Pennsylvania Cockroach {Isck- 

 noptera pennsylvanica) . . . . 416 



Ivi'sser Locust (Melanoplus at- 

 lanus) 417 



