280 



H.6 = the sandy beach, moist near the water level, extend- 

 ing for a mile or two along the river and lakes just above and 

 below Havana. (See p. 198, and PI. XXIII.) 



H.ra. = miscellaneous situations about Havana. 



Mer. = a very sandy small area, with blowouts, some black- 

 jack, sand-pit, and adjacent sandy river bank, just south of 

 Meredosia. 111. (See p. 198.) 



Mol. = the Moline Sand Hill, on the left bank of the Rock 

 River near Moline, with a small summit area of waste sand 

 land, and blowouts, adjoining a close-cropped sandy pasture. 

 (Seep. 198.) 



For the sake of brevity, Je.. An., and S. are used respectively 

 for June, August, and September. 



Arachnida. 



Phidippus iiisolens Hentz (Banks, det ). H.l, 4, Mer. ; Je. 6, 7. 

 All. 20, 22, 29. (8) Blow-sand and dune tops. Mimics fe- 

 male MutUl'nJw. 



Acrosoma rugosa Emerton (Banks, det.). H.5, Au. 12. 



Wala mltratus Hentz (Banks, det.) H.2, Au. 18. 



Tetragnatha lahoriosa Hentz (Banks, det.). H 2, Au. !8. 



Xystlcus gulosus Keys (Banks, det.). H.2, 4; Je. 6 ( immature), 

 Au. 18. (5) 



Lioiunum vittatuiii. Say (Banks, det.). H.2, 6; Je. 9, Au. 13, 18, 

 19. (11) Abundant on mullein along river bank All 111. 



Tromhidiiini locust anon Kiley. H.2, Au. 19. (2) On Melanoplus 

 angustipennis. 



Platyptera. 



Termes liavipes Kollar. H.2, 5; Au. 17,19. (8) Common on the 

 under part of sticks and logs on sand. Observed swarming 

 from a house in Havana. 111., especially southward. 



Orthoptera. 

 Ischnoptera imvqiialis iSauss.-Zehntn. H. 1,2, 4, (5, H.m.; Je. 7, 8, 



9, 12, Au. 18, 19, 20, 22. (11) All 111., common; Iowa. 

 Blafta orientalls Linn. H.m., Je. 18, 25. (2) 111. 

 Bacunculus hlatchleyl Caud. H.l, Au. 22. (2) On dry prairie 



vegetation. All 111., not rare; L. Geneva, Wis. (Note 1) 

 Tettix arenosus Burm. H.6, H.ra.; Apr. 13, May 6, Je. 8, 9. (6) 



All 111. 



