Fig. 105. — External anatomy of squash-bug, Coreus tristis. a, upper, 6, under, 

 and c, side, view of head ; ant, antenna; oc, ocellus ; d. pro-, e, meso-, /, meta- 

 notum; acf, meso-scutum ; sd, meso scutellum ; g, pro-, A, meso-. i, meta- 

 pleurum; si, pro-, st', meso-, st", meta-fiternum;6p_i5. epis\ epis", epistemum 

 of pro-, meso-, and raeta-tborax; €t?i, em', em", epimerum of pro-, meso-, and 

 meta-tborax; jf. k. I, under side of the pro-, meso-, and meta-thgrax; cz", 

 coxa; fr", trochanter; /, femur; t, tibia; ts. tarsus; m, dorsal, n. Ventral o, 

 side, view of abdomen; sp', sp", six pairs of spiracles. (Tofacepage lOU.) 



