^8(5 SKIJIKS III.— SKIx'K'ICOK'XIA. 



1308 (3900). IlKTEROCERVS prsii.i.r.s Sm.v. .Tduni. I'liil. Acad. Nat. ScL, 111. 

 1823. 200; ibid. II. 12S. 

 Olildiij,'. UKKU'i-ately ciiuvex. I>all yclluw lo [)ale sooty-brown, either 

 uniform in color or witli a broad darker median band extending: from base 

 of head to tips of elytra ; epiijieura and legs pale. Elytra parallel, not sub- 

 striate. Length 2-2.5 nun. (Fig. 250. (/.) 



Putnam and Crawford eountic^s. scarce; froinient (in l)order of 

 [xiiid near I'liivcrsity fai'iii cast of Alitclicll. -Inly lO-Aug'ust 7. 

 Readily known hy ils small size and absence of nsiial yellow spots 

 on elyti'a. 



Series III. SERRICORNIA. 



This series is primarily distinsui^hed. as its name indicates, by 

 the serrate or saw^-tooth character of the antenna?. The serrate an- 

 tenna is, like the filiform, nsnally slender and of nearly the same 

 width throughout, but differs in having each joint project more or 

 less inwards, this projection being sometimes so long as to form 

 what is called the pectinate or comb-toothed antenna. As w^e have 

 already noted, some of the families connect so closely with those of 

 the Clavieornia that they are inclmh^d in both tables. In all but 

 two the tarsi are .'i-jointed. 



Their food is vai'iable in charact(M'. bn.t consists for the most 

 part of either living oi- decaying wood or other vegetable matter, or 

 in tliose species with soft body cov(M-ing. mainly of larva?, small 

 W'Orms, snails and other living matter. ^Ml the families of the series 

 are i'('])reseiited in Indiana. 



KFA' TO r.\MlLIES OF SERRICORNI.\. 



ti. First and second ventral segments firmly united; antenna^ serrate, never 

 elongate ( iiectiiiate in the male of Xcnorliipis) ; tarsi with mem- 

 bi'anous lobes beneath; prosternal s])ine received in a cavity of the 

 mesosternum ; thorax fitting closely to the elytra. 



Family XXXIX. r.rrRESTn).E, p. 770. 

 nil. Vciili'al segments all free and moval)le. 



h. Tarsi l-jeiulcd; aiilenna' short, terminal joints thicker (flabellate 

 in l)'Iiiiii(hni(lnis) ; form cylindrical; lengtli less than 3..! nun. 



Family XLVII. ('ion).K. ]). SO.".. 

 hJ). Tarsi in jtart or wlmlly .^•-jointed. 



c. Hind larsi l-Jdinlcd. Ilie etluM'S .^t-.iointcd ; form oval, convex; 

 length less tliaii :'. mm. Family Xf.N'lII. Simiindid.e, p. 001. 



re. Tarsi all .''.-join ted. 



i1. I''ii-st .idiiil (if l.irsi very sliort and imperfectly separated from 

 the sccdiid ; aiifcminl chib 3- or -l-.jointed. first ventral segmejit 

 net elongated isnblamily Itdslriclniirr) ; antennal club 2- 

 .jelnlcd. first venti'nl elongated (subfamily Lyctinw). 



Family Xl.(\'. F.ostriciiid.t;, p. 88r.. 

 <l(l. I'irsI Joint of tarsi dislinct (except in some Glcrifhr), often 

 longei' llian the second: lii'st ventral not elongate. 



