THE FEATHER-WlXiIEP BEETLE?. 4S7 



yanosella fungi Lee., elongate, reddish-yellow, legs and anten- 

 na? paler, length .3 of one mm., has been taken near Cincinnati. It 

 is the smallest of North American beetles and occurs in powdery 

 fungi. Ptiliuni collani ^lakl.. oblong, pitehy-blact. length .7 of 

 one mm., may al-<o occur. 



11. I'texidicm Erichs. 1^4.j. (Jr.. ■•provided with little 



feathers.'') 



Small elongate or oblong-oval sj.^'cies having the club of an- 

 tenna? formed of three joints: thorax small, nari'ower at base than 

 middle ; elytra entire, concealing all seven segments of the abdo- 

 men; nietasterntira large, quadrate, extending to the sides of the 

 body. Two have been taken in the State, and another may occur. 



KEY TO IXDIAX.^. SPECIES OF PTENIDILM. 



<i. Thorax with two distinct fovere on each side near the base; color pale 

 chestnut brown. foveicoixe. 



(7(1. Thorax with bnt one f( via on cnrh side at 1i;i>e. or n-ne. 



6. Color black, shining. tJie tips of elytra yellowish. '.i:;.". prsiuXM. 

 bb. Colur dull .vt'liow. shining: elytra each with rvvn blacki-^h stripes. 



936. LTXEATUM. . 



935 (2929). Ptenidh m pcsillum G.vU., Ins. Snec. I. IsOS. Is9. 



Rather broadly ovate, convex. Blatk or pice«ius. shining, veiT siKirsely 

 clothed with Uiil' whitish haii-s; tips of el\ti-a more or less widely reddish- 

 yellow ; les^ and antennte dull yellow, the club of the latter dusky. Thorax 

 much wider than long, widest ju-t behuid the middle, sides rounded, hind 

 angles obtuse; disk deeply and sjnisel.v imnctured and with a de^ trans- 

 verse impression each side at base near the angles. Elytra ovate, widest 

 before the middle, with very fine remote punctures in rii\v<. Length 1 

 1.5 mm. 



Putnam County; rare. ]\Iarch 25. Taken by sifting dead leaves. 



;ioO {2;t34). PTENiDruM LixE-iTi^ Lec.. X. Si'. X. AmtT. Cv].. I. ]S(^;3, 6.3. 



Ekingate-oblong. convex. Color :.'iven in key. Thorax slightly wider 

 than lung, a little narrower at aijex than base, very finely punctate. Ely- 

 tra oval, sparsely clothed with fine silken hairs. Length .4 mm. 



Clark County : rare. !May ti. Taken from fungi on beech log. 

 A member of the Austroriparian fauna. 



III. LiiiiTX-DEs ^latthews. l^'iT. 



One small reddish species belongs here. It has the antennae very 

 short and thick, joints 1 and '2 large. :^6 very small. 7—9 very large 

 and forming an elongate club; head small, deflexed; elytra trun- 

 cate, sliort and narrowed toward the apex ; abdomen short, with six 



