HOW TO KNOW THE INSECTS 



48b Tibia without teeth on outer edge. Beak usually longer 

 than broad 49 



49a Antennae without a distinct club; not elbowed. Body long, 

 slim, cylindrical, in the one Iowa species. (The Primitive 

 Weevils) Fig. 143. Family 104, BRENTIDAE 



Fig. 143. Eupsall 



FijT-ure 143 



mlnuta Drury 



Subcyllnclrlcal. Dark reddish brovvTi with yel- 

 lowish marKlriKS on elytra. The entire drawing 

 Is of the female. The males average larger than 

 the females and have Instead of the heavy man- 

 dibles a long, fairly straight snouth projecting 

 in line with the body to a length nearly equal 

 to the thorax, (a) Found under bark of dead or 

 dying oaks, and other trees. Length 7-17 mm. 

 (From Blatchley and Leng's Rhynchophora of N.E. 

 America. ) 



The Primitive Weevils have many representa- 

 tives In the tropics. The species here described 

 and a variety lecontei are the only members of 

 the family known to occur In our state. 

 49b Antennae with distinct club; but either straight or 



elbowed 50 



50a Stout gray and black checkered beetle, 12-18 mm. long. 

 Antennae not elbowed but with small oval club (a). But one 

 species in Iowa. (The New York Weevil) Fig. 144 



Family 105, BEL I DAE 



Fig. 144. Ithycerus noveboracensls (Forst.) 



Black, clothed with gray and brown pros- 

 trate hairs arranged in Interrupted stripes 

 on thorax and elytra. Scutellum whitish. 

 Breeds in bur oak and is destructive to fruit 

 trees. It is the only representative of its 

 fam.lly. Length 12-18 mm.. 



Figure 144. 



50b Not as in 50a 51 



51a Beak always short and broad. Palpi flexible. Thorax with 

 transverse raised line. Antennae almost always 

 not elbowed. (The Fungus Weevils) Fig. 145. 



Family 106, PLATYSTOMI DAE 

 Fig. 145. Euparius marmoreus (Oliv.) 



Robust dusky brown v;lth Irregular pattern of 

 pale brown and gray scales on thorax and elytra. 

 Bar of black on each elytron. Legs ringed with 

 gray and black. Common under bark on dead stumps 

 of willow, maple, etc. Length 4-9 mm. 



This family has Its largest representation In 

 the tropics. Our species appear to be fungus 

 feeders and are found in proximity to fungi on 



Fip-ure 145. lOgS and StU2TipS. 



75 



