ri;i:ii \('i:(ii ^ din i.\<; hkkilks. 



219 



4in ( l.".?.")). Ih DKoroui s 1)11 iDKMis Ia'c, I'roc. Phil. Acad. Nat. Sci., 1855, 



Elongate, obconic. Nearly uuirin-ni dark rcddish-hrdwn, j^ilabrous ; an- 

 U'niKT' and less palor. riinctui-cs (if clylra iiiiirorni in size and rather coarse; 

 tliose of thora.x niiicli liuci-. rrostcrn.il spine elevated at sides and along 

 the middle. Hind cdxal Inbcs strongly developed. Length 5.5-6.2 mm. 



'I'nkcn Duly in M.-irioii Counly. from woodlaml pond near Broad 

 U'ippic; .scarce. ]\Iarcli 1-1. Our lai'ii'cst membor of the genus. 



4i:o ( i;>2S). llYDKOPOBUS STBiATOPUNCTATUs Melsh., Proc. Phil. Aead. Nat. 

 Sei.. IT. 1S44, 2S. 

 Elongate-oval, 'riiorax and grunnd cdlor i>\' elytra pieeons; elytral 

 markings consisting of a snb-basal cnrved bar. an indistinct snbapical and 

 a distinct apical spot, dull yellow. [Jpper surfac-e linely and siiarsely pubes- 

 cent. lOlytra each divided- into three sube«[ual spaces by two sm(X)th im- 

 punctnred longitudinal lines; the intervals between them coarsely and 

 sjiarsely punctured. Lengtli o.2 nun. 



^lai'.shall rouuty. near sciilli eiid of Lake >raxinknf*kee ; rare. 

 June 27. 

 421 (lo20). IIYUKOPOKLS ( o.NsiMii.is Lec. Agass. Lake Sup., 1850. 214. 



Oval, rather wide, slightly attenuate behind. Head 

 and tliorax reddish-yellow, the latter luscous on base 

 .111(1 apex. Elytra blackish, with three irregular red- 

 dish-brown spots; one marginal, extending from tb(^ 

 humerus back oue-third the length of elytron, then 

 across nearly to suture, where it expands; one be- 

 hind the middle and one near or at apex; these very 

 variable in size and form. Length 4.5 mm. (Fig. 110. ) 



Northern half of State; frtMpieiit. April -i- 

 Oetober 23. 



Fig. 110. X 5i. 

 (After Wickham.) 



422 (1.314). Hydropobus undulatus Say, Trans. Amer. Phil. Soc, II, 1823. 

 102; ibid. II, 99, 515. 

 In LeConte's table this species is separated from cuiisimUis only by the 

 broader margin of the thorax. In the specimens at hand the ground color 

 is somewhat paler and the reddisQ-brown marks of the elytra are smaller 

 and more indistinct than in consimili.s. Elytra more si)arsely and coai-sely 

 punctate than there. Length 4^.5 mm. 



Laporte and Marion counties ; scarce. June 12. 



//. nilxfiis Lee, 4.1 mm., and H. sericeus Lee, 4.5 mm. in length, 

 both have a range which would indicate their presence in northern 

 Indiana. 



42-A (1827). Hydroporus uimidiatus G. & H., Catalog Col., ISTO. 432. 

 fieinirufm Lee, Proc. Phil. Acad. Nat. Sci., 1855, 290. 

 Oval, niiiderately attenuate behind. I'ale brownish-yellow: thorax with 

 a n.Midw black line on base; elytra each with seven or eight black spots, 



