1054 



WALTER H. WELLHOUSE 



ORTHOPTERA 

 Acridiidae 



atlanis Riley, Melanoplus 

 bivittatus Say, M. 

 femur-rubrum De Geer, M. 



The common grasshop- 

 pers Melanoplus atlanis, 

 M. bivittatus, and M. 

 femur-rubrum sometimes 

 leave their herbaceous host 

 plants to feed on the foliage 

 of the lower branches of 

 hawthorn trees. The older 

 nymphs and adults have 

 been observed feeding in 

 August and September. 

 They feed irregularly on 

 the leaves, sometimes eat- 

 ing the entire leaf and 

 sometimes eating only the 

 apex or one side of it. 



HEMIPTERA 

 Miridae (Capsidae) 



communis Knight, Lygus 



One adult of Lygus communis was taken on June 21 and four were taken 

 on August 2, puncturing the leaves of Crataegus punctata. 



dislocatus Say, H or das 



A few adults of Horcias dislocatus were found feeding on leaves of Cra- 

 taegus punctata in June. They are black, rather stout, and 6 millimeters long. 



malinus Reuter, Heterocordylus 

 (Dark apple redbug) 



Nymphs and adults of Het- 

 erocordylus malinus are very 

 common on native hawthorns, 

 where their'red color and rapid 

 running over the branches 

 make them very conspicuous. 

 The young nymphs begin to 

 appear about April 15, when 



FlG. 106. THORN LEAP POUCH GALLS 



FIG. 107. 



CROSS SECTION THROUGH A THORN LEAF 

 POUCH GALL 



