HOW TO KNOW THE INSEQS 



Fig. 137. Typocerus velutlna (Ollv.) 



Head, thorax and antennae black. Elytra 

 reddish brown with yellov.^ cross bars. Common 

 on flowers such as New Jersey Tea, Purple 

 Headed Cone Flower, etc. Length 10-14 mm. 



The Long Homed Woodborers are strong favo- 

 rites with collectors. Theirs is a large 

 family varying widely In shape, size, and 

 color. Many species are destructive to trees 

 and shrubs, while the larvae of some species 

 live In the stems of herbaceous plants. 



Figure 137. 



Figure 138, 



45b Body usually short, more or less oval; antennae short, not 

 at all surrounded by eyes 46 



46a Front prolonged into a broad quadrate beak. Elytra exposing 

 tip of abdomen (a). (The Seed Weevils) Fig. 138. 



Fami ly 103, MYLABRIDAE 



Flc. 138. l!ylabrls obtectus Say 



The Common Bean V/eevll. Black, clothed with 

 grayish pubescence. Elytra marked with obscure 

 bands. Altogether too common In stored beans. 

 Length about 3 mm. (From U.S.D.A.) 



This family Is small but very important. The 

 larvae are universal pests of the larger seeds of 

 Leguminous plants. The eggs are laid in most 

 cases when the pods are quite small and develop 

 within the growing seed. It is a rather reckless 

 thing to do, for many of the tiny grubs lose 

 their lives on the dinner table. Some species 

 run a series of generations in stored seeds. If one will collect 

 the seeds of different legumes and bottle them, the beetles, as 

 well as their parasites which are also likely to be represented, 

 may easily be collected when they emerge. 



46b Front not prolonged into a beak. Abdomen usually wholly 

 covered with elytra. Larvae and adults live on leaves of 

 plants. (The Leaf Beetles) FigS. 139 and 38. 



Family 102, CHRYSOMELIDAE 



Fig. 139. Chryptocephalus mutabllis I.'elsh. 



Heavy, subcyllndrical. Shiny, reddish brovm 

 with markings on thorax and elytra yellow. 

 The males have spots on thorax and elytra 

 black or very dark. Length 4-6 mm. 



This is a very large and important family. 

 Few plants escape the ravages of some species 

 of leaf beetle. They closely rival the Long- 

 horns in Interest and beauty for collections 

 though they average smaller In size. Their 

 greater abundance makes up for this seeming 

 handicap. 

 4Ta Tarsal claws toothed or appendiculate. 

 (Flg.139i). First ventral abdominal seg- 

 ment with distinct curved coxal lines. 

 (The Lady Beetles). Fig. 140. 



Family 85, COCCINELLIDAE Figure 139|. 



73 



Figure 139, 



