ADEPHAGA. 



15 



Body widest before middle of elytra. 



Front edge of thorax not produced 



in the middle ..... 



B. Elytra with dark spots. Front edge 



of thorax sinuate, slightly roundly 



produced in the middle. 



a. Elytra with the suture and a 

 variable number of oblong spots 

 which are situate on the interstices 

 and do not, any of them, touch the 

 suture, blackish. Sides of thorax 

 straight .... . . 



b. Elytra with the suture and a variable 

 number of irregular spots, which 

 are not markedly oblong, and some of 

 which touch the suture, blackish. 

 Sides of the thorax distinctly con- 

 vex ....... 



2. Punctures on the base of the thorax 

 but little larger than those across the 

 apex. Sides of thorax straight and 

 forming a distinct angle with the out- 

 line of the elytra. The latter with 

 more or less interrupted dark lines 



i. Base of thorax with a longitudinal im- 

 pression on each side opposite the fourth 

 row of elytral punctures. 

 1. Head, in greater part, pale. Thoracic 

 impression not falcate, nor reaching the 

 half length of the thorax. Metasternum 

 simple. 

 A. Elytra with the dark lines 1-4 un- 

 equal in width, distinctly widened on 

 the disc, 5-7 intexrupted at the base, in 

 the middle, and at the apex, and often 

 confluent, 

 a. Thorax apparently more than twice 

 as broad as long, the sides strongly 

 convergent in front. Elytra evidently 

 widest before the middle, 

 a*. Elytral interstices in the female, 

 wholly or in part, with an extremely 

 fine irrorate punctuation. 

 at. Elytral interstices in the female 

 punctate throughout. Usually a 

 little larger than H. heydeni, and 



H. FLAVicoLLis, Sturm. 



H. FuiiVus, F. 



H. VARIEGATUS, SfUi'Vl. 



H. LAMINATUS, Schall. 

 = CINEREUS, Aube. 



