(JOC 1-\\MILY XXV. HISTER1D3;. 



Common along the beach of Lake .Michigan in company with in- 

 lerrupius; not noted elsewhere in the State. ^May 20-June 10. 

 The length of the sutural stria, the only character used by Horn in 

 separating several species, is often uncertain and variable in the 

 same species. 



1147 (3481). HiSTEB STYGicrs Lee, Bost Journ. Nat. Hist, V, 1845, 48. 



Resembles iiiicrniptus in almost every particular except size. Form 

 more broadly oval ; thorax with stri;e entire, parallel, equidistant from each 

 other and from the margin ; disk very minutely' punctulate. Propygidium 

 cci.-irsely but vlm-v spai-sely punctulate; ii.ygidlum finely and sparsely punc- 

 tate. Tyengtli '2.5 mm. 



Putnam County; rare. April :^4. Taken by sifting about a 

 deserted monse's nest. 



114S (•■t4S:!j. lIisTEK MAEGiNicoLUH Lfc, Bost. Journ. Nat. Hist., Y, 1845, 

 58, pi. 3, fig. 11. 



Broadly oblong-oval, subeonvex. Thorax with margin thickened, con- 

 vex ; outer stria wholly absent ; inner one entire, close to margin ; surface 

 veiy finely punctulate, sides more coarsely punctate. Elytra with sub- 

 humeral and three dorsal stria' entire, fourth abbreviated at base some- 

 times only on apical half, fifth short, apical; sutural extending bcyciml 

 middle. Epipleura with one stria. Front tibia; with five rather acute 

 iccth. Notch of mesosternum very shallow. Length 3.5^.5 mm. 



Lake, :\Iarion and Posey counties ; scarce. :\rareh 13-August 26. 

 Those on the earlier date ^vere taken in company with several other 

 beetles beneath honey-comb on the ground in dense woods. 



H. cognntuf< Lee., is said to occur in the Middle States, Illinois 

 and Wisconsin. 



1149 (.34S(!). HiSTER FCEDATUs Lec, loc. cit., 50, pi. 2, flg. 8. 



Broadly oval, subeonvex. Thorax with outer stria short, but variable 

 in length ; inner stria usually abbreviated at tip, surface minutely punctu- 

 late, more coarsely on sidc^s betAveen the strife. Elytra with subhumeral 

 and three dorsal stria^ entire, fourth slightly abbreviated at base, fifth 

 usually one-third, sutural „iie-half, the length of elytra. Front tibiie with 

 six or more teeth. Length 4-G.5 mm. 



Marshall, IMarion, Wgo and Putnam counties; frequent. ]^Iay 

 6-October 11. Occurs beneath cari-io,i. The outer thoraci.^ stria 

 varies fnim a mere arc at niilerior aii^'le to half the length of Uie 

 inner stria. The fiflh dorsal is also variable, the ba.s;d portion 

 often being present either as a line or disconnected punctures. 



