■)(;2 



KAMiiA- \XT. — ci;ci'.iin.i;. 



KKY 'lO 1.M)IA^A SPKC IKS Ol' SILVANIS. 



(/. Tlionix siiboval. it.s sides cicli witli six (cetli. 1001). slrinamensis. 



(III. TlKirax oUmtiate, the sides iiut toothed. 



Ii. 'I'horax strongly narrowed heliind, llie sides more or le.ss sinuate; 



head with a small tooth behind eaeh eye. 



c. Thorax with a sharp divergent tooth at eaeh front angle; elytra 



xvvy ()|ia(]U(', strongly ])nuctnrcd. 1070. biuentatus. 



(■<: Thorax with teeth loss develoi»ed ; elytra somewhat shining, less 



diMisely pnuclnred. 1071. planatus. 



hh. Thorax very feebly narrowed behind, the sides nearly straight; head 



without a tooth behind the eye. _ 1072. imbellis. 



*10()!t (ol'iM)). SiLVANL's suKiNAMENsis L.. Syst. Nat.. II, 17G7, 565. 



Elongate, depressed. Dark chestnut brow'n clothed 

 with lighter pubescence. Antenn;e slightly longer than 

 thorax. Thorax longer than wide, the disk wath three 

 raised lines: sides evenly curved and provided with six 

 distinct teeth. Elytra each with four costie, the inter- 

 vals granulate-punctate. Length 2.5 nun. (Fig. 210.) 



]\r;ifi()ii and Vigo counties; eoninion. Probably 

 thrriPihout the State, as it has ])epn carried by coin- 

 nieree all over the globe. On aeeoiiiit of damage 

 done to stored grain, corn in particular, it is known 

 as the "corn silvanus." It also feeds on dried 

 fruits. By closing the bin or fruit receptable air- 

 Fig. 210^ (Afterciiit- fight, or as nearly so as ixxssible, and pouring in 



teuden. far. Bull. 45, ^' .' i ' t' » 



u. s. Dep. Agr.) bisulpliide of carbon, a gill for each bushel capacity, 



and allDW'ing it to evaporate for twenty-four hours, both beetles and 

 larva^ will be killed without leaving any odor or flavor behind. Hi- 

 bernates as imago. April 25-December 28. 



1070 (.-i.-JOO). Sir.VANUs BU^ENTATUS Fab., Syst. El., I, ISOl. r>17. 

 EIong:ite. subdepressed. Dark reddish-brown, very opaque, densely 



pnnclured. Fi-ont angles of thorax sharply toothed the disk somewhat 

 convex and wilii traces of I he raised lini's seen in suriiitiiiicH-'<ix. Length 

 2.7 nun. 



.Marion. Pnliiam. Jackson, Lawrence and (^rawford counties: 

 IVe(|neiit. .Mai-ch 2()-.Tinu' 12. Taken beneath bark and by sifting. 



1071 (.•'..-JOl). Sn.vANis pi.ANAxrs Germ., Ins. Spec. Nov., 1824, 4GG. 

 Elongate, dejiressed. Dark chestnut brown, less densely iHiuctured. 



'i'horax broadei- than in hidctilul iis .- sides parallel from ajiex to middle, 

 thence distiiiclly coiivei'giug. I.eiigib 2.2 2.7 nnii. 



Thrciiglicnl I he S^atc : coinnKUi. .\|)ril 1 (i XoN-ciiibcr !^{0. It is 

 possible that Ihis is llic rciiialc (if huh iilitl us. Tliey often occur in 

 company and Liiieli staled ( Kiit(mi. Amer. ITT. 171"), that he. had 

 taken the two in coihi. 



