TilK LAMELLICORX BEETLES. 



948 



ter in the form of a louuaed lobe; base rather acutely lobed at middle; disk 

 with four elongate tubercles along the b;is:il margin, the outer one each side 

 with a smaller one in front; the median pair each with a Y-shaped ridge 

 in front, these ridges forming the sides of a median groove. Elytra with 

 rows of moderately elevated, oblong, tubercles, tomentose at summit; be- 

 tween the rows of large tubercles is a row of smaller ones, also tomentose 

 at top, and on each side of the smaller tubercles is a row of rounded granu- 

 lar elevaticins; the surface between all tubercles and elevations, smooth. 

 Length 15-1 S mm. 



Lake County: rare. Sppteniber 3. I liave seen but a single 

 specimen, taken In- J. D. Hood on the beach of Lake ilichigan, 

 near Pine. Tt occurs on the sandy shores of lakes and rivers and is 

 said to be abundant in the (julf States. The rows of three different 

 sizes of tubercles on the elytra readily distinguish this from our 

 other large species. 



177S (5614). Tbo.x MO^ACH^s Herbst., Kafer, III. 17S0, 25 



More oblong and less robust 

 than scahrosus. Dark brown or fus- 

 cous. Thorax with sides subangu- 

 late in front of notch near hind an- 

 gles ; basal margin deeply sinuate 

 near the angles; tubercles as in 

 scabrosus. Elytra each with five 

 rows of rounded or oval tubercles, 

 tomentose at tip, rather distantly 

 placed one from another, those of 

 one row alternating with those of the next ; the spaces between the tuber- 

 cles finely and sparsely granulate, one of the tubercles of third row on 

 apical fourth of elytra is much enlarged, the corresponding one in the 

 fourth and fifth row also enlarged, but smaller than that of the third. 

 Length 13-16 mm. (Fig. 368.) 



Fig. 36S. a, larva; b, pupa; c, beetle; d, e, f, lep, cervical 

 plate and maxilla of lan-a. (After Ei'.ey.) 



Southern half of State : frequent, 

 on the former date. 



•June 7-October 6. Elating 



1779 (5615). Tkox aspee Lee. Proc. Phil. Acad. Nat. Sci., VII, 1854, 215. 



Oblong, robust. Purplish or grayish-brown ; the first joint of antennse 

 and club as in monachus. Thorax as in moiiachus, except that the notch 

 near hind angles is less deep, the angular lobe less prominent, and the 

 sinuatlon of basal margin less marked. Elytra with rows of oblong or 

 elongate, tomentose tubercles, their front ends smooth and shining. Inter- 

 vals between the larger rows of tubercles each with a row of small ones, 

 on each side of which is a row of rather deeply impressed punctures. 

 Length 13-15 mm. 



Putnam County; rare. June 11. Probably occurs sparingly 

 throuehnut the snuthern half of State. 

 [f;0— 2.3402] 



