210 FAltlLT IV. DYTTSCIPiE. 



397 (1244). Laccophills pboximvs Say. Trans. Amer. Phil. Soc, II. 1823, 



101 ; ibid. II, 514. 



Ovate. Elytra nearly uniform dark reddish-brown, with only traces 

 of the greenish-yellow spots of maculosus. Beneath darker than in that 

 species. Length 4.5 mm. 



Laporte. ilarshall, ilarion and Lawrence counties; frequent. 

 April 11-Au^ist 20. 



398 (1248). LACCOPHiLrs fasciatus Aubg, Spec. VI. 1.S3S. 423. 



Ovate, subdepressed. Head, thorax and under parts dull brownish- 

 yellow ; elytra greenish-yellow with a broad blackish bar behind the mid- 

 dle. Thorax and elytra finely alutaceous, the latter rounded at apex. 

 Length 5 mm. 



Throughout the State; frequent. April 4^ August 12. The 

 meso- and metasterna are often fuscous. 

 .399 (12.o3i. Laccophllus lkdatus Aub6, Spec. Gen., YI, 1S3S. 43o. 



Narrowl.v oval. Head, thorax and under parts reddish-yellow ; elytra 

 blackish with a rather broad. Irregular basal and a narrower subapieal 

 cross-bar, yellowish ; also a spot on the margin about the middle and at 

 apex of the same hue. Elytra very finely and rather closely punctate. 

 Length 4.7 mm. 



Fountain County and Pine Lake, La])orte County ; scarce. July 

 21-August 15. The pale basal cross-bar varies in width and usu- 

 ally encloses two small squarish black spots on each elytron. 



Subfamily II. COMPLICATA. 



This group contains by far the greater number of the species 

 belonging to the family. All agree in having the middle coxal 

 cavity enclosed by four distinct pieces. The beetles vary much in 

 form and size, and exhibit the most perfect development of the oar- 

 like hind legs. Four tribes occur in the North American fauna, all 

 of which are represented in Indiana. 



KKY TO TRIBES OF OOMPLKATA. 



a. Prostemum deflexed or bent downward between the front coxjb. so that 

 the process or spine is on a different plane from that of the pro- 

 sternum ; front and middle tarsi four-jointed, except in Celina; length 

 less than 6 mm. Tribe I. Hydboporini. p. 211. 



aa. Prostemum not deflexed; all the tarsi distinctly five-jointed. 



6. Lower spur of hind tibije not or but little-broader than the other. 

 c. Outline of eye in front notched by the free margin of front of 

 head; front tarsi of males with three (two in A;iiibiiiii>^) basal 

 joints dilated, forming an nhlouL.' or elongate surface: leugtli 

 usually 7 or more mm. Tribe II. Colymbetim. p. 221. 



rr. Outline of eye not uotihed: fr.mt tarsi of males dilated s.> as ti> 

 form a rounde<l or triangular disk: hind tarsi f except in Hy- 

 claticiis) with two nearly equal claws: length 10-40 mm. 



Trilie III. Pvtisctni. p. 22".1. 



