THE ANT-LIKE FLOWER BEETLES. 1343 



*2495 (7970). SAPINTUS PUBESCENS Laf.. Mon. Anthic., 1848. 177. 



Head and elytra dark brown to black, shining ; thorax dull ; legs pic- 

 eous, the tarsi and basal half of antennae pale. Head finely and closely 

 punctate, truncate at base. Thorax wider than long, slightly narrower than 

 head, widest at apical third, the sides thence oblique and strongly con- 

 verging to base; surface finely and densely punctate. Elytra convex, more 

 than twice as wide as thorax, sides straight as far as middle ; disk coarsely, 

 deeply and rather sparsely punctate, with a distinct hump each side of scu- 

 tellurn ; the coarser, suberect hairs yellowish. Length 2.7-3 mm. 



Throughout the State ; scarce. January 13-June 13. Occurs 011 

 ground beneath rubbish, hibernating sparingly beneath mullein 

 leaves, etc. 



2496 (7971). SAPINTUS FULVIPES Laf., Mou. Anthic., 1848, 177. 



Smaller and more narrow than pu'bescens, which it resembles closely. 

 Legs and antennae wholly dull reddish-yellow. Thorax much narrower than 

 head and more distinctly narrowed behind. Pubescence of elytra fine, short, 

 pale and conspicuous. Length 2.3-2.5 mm. 



Lake, Lawrence and Dubois counties ; scarce. May 5 October 6. 



XIV. AMBLYDERUS Laf. 1848. (Gr., "obtuse + neck.") 



The members of this genii s occur, for the most part, along the 

 beaches of the sea and lakes. The strongly sloping front of the 

 thorax and the stouter, more oval body readily distinguish them 

 from Anthicus. One of the eight species recognized by Casey has 

 been taken in the State. 



2497 (7976). AMBLYDERUS FALLENS Lee., Agass. Lake Sup.. 1850, 231. 

 Stout, convex. Uniform dull, pale yellow, rather 



densely clothed with short, coarse, yellowish hairs. 

 'Head triangular, base truncate and distinctly im- 

 pressed at middle, surface granulate, with a median 

 smooth line. Thorax cordate, slightly wider than head, 

 widest at apical fourth, thence much narrowed to 

 base ; surface finely and sparsely granulate-punctate. 

 (Elytra oval, one-half wider than thorax; disk finely, f 

 (not densely punctate. Length 2.7-3 mm. (Fig. 586.) 

 Lake and Porter counties; scarce. May 14- 

 October 12. Occurs beneath rubbish on the sand 

 beach and dunes of Lake Michigan, its hues so 



Kg 586. (Original.) 



blending with those of the sand that the insects 

 are scarcely visible until they move. 



Tribe V. XYLOPIIILTNI. 



Small oval or oblong forms separated by the characters given 

 in the tribal key and by having the head constricted close behind 

 the emarginate, usually hairy and coarsely granulated eyes; head 

 [8523402] 



