866 



FAMILY XIJII. PTINID/K. 



1651 (5240). Ptinus bbukneus Duft., Faun. Austral., Ill, 65. 



Very similar to fur. from whicli it is dis- 

 tinguisliecl mainly 1>y characters given in key. 

 Color more often pale brown in both sexes. 

 Elytra without trace or patches of recumbent 

 scales except near humerus in the female, 

 and these often lacking. Head behind the 

 antennae polished and with strong punctures, 

 these visible only when the scales are re- 

 moved. Length 2.7-3.5 mm. (Fig. 344.) 



Hamilton, Marion, Putnam, Craw- 

 ford and Posey counties; frequent. 

 April 24-December 22. Occurs in old 

 buildings and outhouses. Also an intro- 

 duced species. 



P. villigcr Reit., is known from New England, Michigan and 

 westward; P. falli Pic, length. 2.3-3 mm., is recorded from Ohio 

 and Kentucky; P. bimaculatus Melsh., length 2-2.8 mm., is re- 

 corded from Slichigan, Pennsylvania and Missouri, while P. quadri- 

 maculaiiis ^lelsh., length 3-3.2 mm., is reported from Ohio. 



:. 344. Male. (After Forbes.) 



Subfamily II. ANOB'INAE. 



The insects of this subfamily are mostly of a slightly depressed, 

 subeylindrical form, but vary to broadly oval or nearly globular. 

 The antenna^ are distant at ba,se and inserted just in front of the 

 eyes, which are rounded and usually prominent. Head deflexed 

 and nearly or quite invisible from above. Hind coxse, except in the 

 first tribe, more or less sulcate for the reception of the femora. 

 Pall divides the subfaanily into six tribes, all of which are repre- 

 sented in Indiana. 



KEY TO TKIBES OF ANOBIIN^. 



a. Front of head not margined, nor with impressed line over the base of 

 antenna ; hind cox£e not grooved for the reception of thighs ; thorax 

 not margliuMl at sides. 'I'ribe I. HEnomiKi! p. SCT. 



aa. Front of head margined more or less acutely or with an impressed line 

 above the anteun» ; hind coxa; more or less distinctly grooved ; tho- 

 rax margined at sides, except very rarely. 

 6. Antennas of male never fan-shaped, at most pectinate; front tibi* 

 not toothed and denticulate on the outer side ; form and sculpture 

 similar in both sexes. 

 c. Head in repose received upon the under surface of the thorax. 

 fh Thorax not excavated beneath, the head free. 



Trilie II. Devo:\]:liki. \k ^v,-. 

 (Id. Thorax excavated beneath for the reception of the head. 



Tribe III. Anobiini. p. SCS. 



