■I'll!'; i.(tN(i-iioK-\i:i) \v()on-p.()K>i\(i iii':i':'ri.KS. IdTl 



;iii(I clyfr-i each witli |iur.i-liin's and clcxal ions as in iiuiiilrhjihlnis. rroni 

 wliicli it is si'iiaralcd mainly li.\ ciiai-acU-rs ;:iv('ii in key. L('n.i;tli Kt 

 1.". nmi. 



('i-;i\\ fdfd atid I*()S(>y couiitii's; scjutc. .Inly 'J . Inly 5. Occurs 

 oil the ti'uiiks (if white oak ti'(>('s. 



.1. mnrrisli I'lilcr is kimwii frdin .Missouri. I'ciinsylvania and 

 Canada. 



LVTT. LEPTOSTYi.rs Loc. ^S')2. (Cli-.. "slciidci- point.") 



Ohlonu', rather robust species, closely rt'lated to the next, but 

 ditt'erinii' by ha\inL;' a very obtusi" tulicrcle on the side of thorax a 

 little b(>hiii(l the middle; |irostei-nuiii bi-oad and channeled; nieso- 

 stei-nuin broader than long-, more or less eniarginate at tip and 

 sli<ihtly dilated behind the coxa^ ; antennsi? less slender and shorter 

 than in Li(>j)i(s, the outer joints beeomino' rapidly shorter than tlie 

 Ihird and fourth; first join.t of liind tarsi not longer, if as long, as 

 the next two. Four species have been taken in Indiana, while three 

 others may occtir. 



KEY TO IM)IAN.\ SPECIE.S OF LEPTOSTYI.T'S. 



ii. Elytra witheut small elevations hearing short hlaek scale-like hairs. 



b. Elytra slightly truncate .at tip; prosternum as wide between the 



coxje as the width of a coxal cavity. 1979. macula. 



hb. Tips of elytra separately rounded ; prosternum narrow-er than a 



ooxal cavity; thorax rather densely punctured on flanks as well 



as disk. collaris. 



(i(t. Elytra with small tubercular elevations, each bearing on its summit 



short, black, scale-like hairs. 



c. Thorax densely jtunctured: elytra with densely i)laced coarse, deep 



punctures. 1J>.S0. sexguttatus. 



a: Thorax not densely punctured ; elytral punctures not closely placed, 

 often inconspicuous or concealed; legs not hairy. 

 tl. S\u-face of thorax even, not tuberculate. regularly punctured. 

 r. Elytra very indistinctly punctured, especially at apex, the disk 

 with an angulate white band behind the middle, the tips feebly 

 and obliquely truncate. r.n'sxrs. 



rr. Elytra distinctly puncturwl over the entire surface, the tijts 

 slightly probniged. not oblicpiely truncate. 19S1. parvcs. 



'/(/. Surface of thorax more or less tuberculate. the punctures irregu- 

 larly iilaced and rugose. 

 /. Antenna' in both sexes longer than body: elytra feebly or not 

 roughened wilii amle luiiercles. ri_\Nii)oi{srs. 



ff. Antennae scarcely I aiger than body, even in male, the third J ;inl 

 distinctly longer lli;in I'onrtli : elytra with acute tubercles or 

 ridges. \'J'<'2. aci i.ii'iaus. 



[G8— 2:5402] 



