524 I'AMII-'i XVI. (•()('( 'I. NKIiLID.K. 



Tiilu' \I. SCVMMXl. 



Tliis li'ihc ('iiil)f;ic('s ;i \i\vg<' nuiiiljer of small species readily 

 recognized by the distinct i)ul)escence of the up])er surface. The 

 pfeniis S)nilia, though composed of ap])arently glabrous forms, is 

 combined with the other- genera on account of a similarity in struc- 

 ture. In all our forms the anteriua? are scarcely as long as the 

 head, thorax de.'i)ly eniargituite in front and rounded behind; front 

 and middle legs more or less contractile, with the thighs sulcate be- 

 neatli for the reception of the tibise. Casey separates the tribe into 

 six genera, four of A\hicli arc I'cprtscnted in Indiana. 



KEY TO IXDIAXA GENEK.\ OE SCYMNINI. 



(/. Tliurax not (leei)ly eniarsinate; antenii.-e apparently ll-jointed, free; 

 front cox;e moderately seiia rated. 

 h. Thorax with a tine, obliquely inii)ressed line behind the front angles; 

 body apparently glabrous, yet tinely pubescent under high power ; 

 tarsal claws simple. XV. Smilia. 



hh. Thorax without an oblique line near the front angles; body always 

 distinctly pulvescent ; tai-sal claws bitid. 

 c. (M,\i)eus prolonged for a considerable distance before the eyes, the 

 sides converging; antennne inserted in small shallow emargin;;- 

 tions just before the eyes; prosternum flat, not at all detiexed 

 toward the tip, generally bicarinate. X\T. ScYiiNCs. 



<r: Clypeus extremely shcn-t befoi-e the eyes, truncate with rounded 

 angles, the antenna' inserted inider its sides adjoining the eyes; 

 l)rosternum transversely convex, not carinate. broadly and grad- 

 ually detiexed, forming a protection to the mouth in repose. 



XVII. Stethorus. 

 (/'/. Tlior.-ix vei-y short and broad and deeply emarginate in front; antenn:T> 

 api>arcii|]y '.i-joiiited ; fi-oiit c(ix;c very widely separated. 



XVIII. Cepiialoscy.mni s. 



XV. Smii.i.v AVeise. 1891. 



IFci-e l)el()ng \'cry small roniuled species formerly classed under 

 1h<' genus I'ciililia. Of llic six listed from llie TTnited States, one is 

 known fr-om Indiana. 



KHCi ClOltO). Smilia miski i.a Lcc. IMmc. .\inei-. I'liil. Soc.. XVII, tSTS, 400. 

 Oval, cniivex. rniloi'iii black, sliining. Tliorax nearly smooth, the 

 impressed line near the tronl angles line and indistinct. I^lytra rather 

 coarsely. sp;ii-sely and soniewlial unevenly iMUirlalc. Length .S-1 mm. ( Kig. 

 VX\.) 



'rhroiinlidiil Ihc Slalc: rrc(|nciil. .\pril ];; .May 1^!). Occurs 

 c.-;pccially on rruit trees in Tested willi San .J(»se scale and one of the 

 most benefi<-i;il licet les prc\ing upon I hat injurious insect. 



