HOW TO KNOW THE INSECS 



lib Body not extremely slender as in 11a; antennae shorter 



than body 12 



12a Membrane of front wing with many veins, usually forked, (a) 

 (The squash Bug Family). Fig. 156. Family 4, COREIDAE 



Fig. 156. Anasa trlstis (De Geer) The Squash 

 Bug 



Depressed above. Dull brownish yellow, grayed 

 with black punctures. Head black with three 

 yellow lines. Alternate squares of black and 

 yellow on connexlvum (sides of abdomen). A 

 serious pest of squashes and pumpkins. Length 

 13-18 mm. (From U.S. D. A. ) 



iLOst of the members of this large family are 

 plant feeders. They are, provided for defense 

 with stink glands with which they make their 

 neighborhood hideous when disturbed. They vary 

 greatly In shape and color. They are medium to 

 large bugs. 



12b Membrane of front wing with but four or five veins (a). 

 (Some species with short winged or wingless forms), (The 

 Chinch-bug Family). Fig. 157. Family 7, LYGAEIDAE 



Fig. 157. Bllssus leucopterus Say The Chinch 

 Bug 



Dull black, thickly covered with fine pubescence. 

 Elytra white with large black spot on corlum. Legs 

 and beak brovmlsh yellow. Length about 4 mm. 

 (From U.S.D.A.) 



The Chinch bug alone would make this large fam- 

 ily famous but many other notable pests belong 

 here also. They are mostly plant feeders. i:any 

 are small. Some are wingless. Young collectors 

 frequently discard these short v/lnged forms for 

 nymphs . 



Figure 156, 



Figurs 157. 



13a Broad flat flightless bugs; Tarsi 3 segmented; ocelli none. 

 (The Bed Bugs). Fig. 158. Family 16, CIMICIDAE 



Fig. 158. Clmex lectularlus L. The Common 

 Bed Bug. 



Dark reddish brown, sometimes yellowish. 

 Wings very short and functlonless. It hides 

 by day but v/lth the setting of the sun comes 

 forth to make the night long to be remembered. 

 Length 4-5 mm. (From U.S.D.A.) 



This family Is a small one, the bed bug 

 being the only well known species. The others 

 are parasites on bats and a few birds. 



Figure 158, 



13b Not as in 13a 14 



14a Front femora greatly thickened and much modified for catch- 

 ing insect prey (a); last segment of antenna thickened. 

 (The Ambush Bugs). Fig. 159. Family 11, PHYMATIDAE 



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