CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS 1 59 



C. Front legs with thick iemora..—Fliymalidce (Ambush-Bugs) 



P- 43- 

 CC. Front legs normal or slightly thickened. 



D. Body not flattened. — Rednviida (Assassin Bugs), p. 43. 

 DD. Body flattened. 



E. Tarsus with 2 segments. — AradidcB (Flat Bugs). 

 EE. Tarsus with 3 segments, dorsum flat, beak short. — 

 Acanlhiidce (Bedbugs), p. 167. 

 EB. Beak 4-jointed. 



C. Ocelli absent. 



D. Membrane of front wings with about eight branching 

 veins; cuneus absent and with two large cells at base.— 

 Pyrrhocorida (Red Bugs). 

 DD. Membrane of front wings with no branching veins; 

 cuneus present and with one or two closed cells at base. 

 —Miridce or Capsida (Leaf Bugs), p. 163. 

 CC. Ocelli present. 



D. Front legs fitted for grasping. — Nabidce (Damsel Bugs), 



P- 43- 

 DD. Front legs normal. 



E. Membrane of front wings with 4 or 5 simple veins 

 arising from its base. — Lygaida (Chinch Bugs), p. 

 161. 

 EE. Membrane of front wings with many forked veins 

 arising from a transverse basal vein. — Coreidce 

 (Squash Bugs), p. 159. 

 AA. Antennae with 5 segments. 



B. Scutellum flat, narrowest behind; tibiae usually without spines.-^ 

 PentatomidcR (Stink Bugs), p. 166. 

 BB. Scutellum convex, covering nearly the whole abdomen; tibiae strongly 

 spinose; prothorax rounded in front and straight behind; scutellum 

 margin furrowed. — Corimelanidce (Negro Bugs), p. 167. 

 BBB. Scutellum convex; prothorax not as above; scutellum with lateral 

 margin unfurrowed. — ■Scukllerida. 



CoREiD^ (Squash Bugs) 



Box-elder Plant Bug (Lepiocoris trivittatus) . — ^Leaves attacked turn 

 yellow and drop. Occurs in the West and is spreading eastward. 



Adult. — A blackish bug 3^^ inch long, with three broad red lines on 

 the black thorax; veins of wings red, also edges of harder parts of wings; 

 mature in autumn. Hibernates under rubbish or in crevices. 



Eggs. — ^Laid in spring and early summer on box-elder trees. 



