THE LEAP BEETLES. 1131 



Thorax densely punctured, the hind angles almost rounded. Elytra with 

 sinuous rows of punctures and convex intervals at sides and behind middle, 

 confusedly punctured on basal half. Length 2.5-3.5 mm. 



Marshall, Vermillion and Lawrence counties; scarce. May 11- 

 June 14. 



2089a (6701). PACHYBRACHYS SUBFASCIATUS DILATATUS Suffr., Linnea. 



Entom., VII, 1853. 102. 



Very similar to the preceding but broader. Elytra with median band 

 covering more than one-third the length and often sending a spur forward 

 to the scutelluni. Punctures of elytra almost everywhere confused; inter- 

 vals nearly obsolete except on apical third. Length 3-3.5 mm. 



Orange and Posey counties ; scarce. May 13-Jnne 4. Taken by 

 sweeping herbage in low places. 



2090 (6691). PACHYBKACHYS PECCANS Suffr.. Linn. Ent, VII, 1853, 192. 



Short, subcyliudrical. Black, shining ; head with three or four spots 

 and labrum yellow ; thorax with narrow marginal line and two or three 

 irregular smooth spots yellow ; elytra with a line at base and along sides, 

 an irregular space at apex and a number of scattered dots, pale yellow ; 

 pygidium in great part yellow. Thorax sparsely and coarsely punctured. 

 Elytra with three or four irregular rows of coarse punctures, the others 

 much confused. Length 2.5-3 mm. 



Marshall and Crawford counties; rare. May 26-June 10. Oc- 

 curs on leaves of hickory. Its general range is southern. 



2091 (6692). PACHYBRACHYS INFAUSTTS Hald.. Journ. Phil. Acad. Nat. Sci., 



I, 1849, 262. 



Short, subcylindrical. Black, feebly shining; head often with labrum 

 and a curved line in front of each eye dull yellow ; thorax wholly black or 

 with a few minute, smooth whitish dots ; elytra usually with a number of 

 smooth, oblong yellowish spaces, these sometimes reduced to mere white 

 dots or points ; front and middle femora with a white spot at apex. Tho- 

 rax with rough, coarse, sieve-like punctures. Elytra with coarse punctures, 

 confused except on apical third. Length 2-3 mm. 



Throughout the State; common. April 26-August 2. Occurs 

 on foliage of the greater ragweed, wahoo and other plants. 



2092 (6691). PACHYBRACHYS FEMORATUS Oliv., Ins., VI, 1808, 810. 

 Robust, subcylindrical. Black, with numerous dull yellow marks; front 



black, with a narrow yellow line near the eyes; thorax with three or four 

 large, irregular yellow blotches: elytra with intervals broken near middle 

 and at apical third into oblong white spaces which form two crossbars, also 

 with similar spaces near apex; pygidium with white marks; under surface 

 black. Elytra! punctures everywhere confused. Length 2.6-3 mm. 



Throughout the State ; scarce. July 4- July 29. 



