•iMFK (iiiorxit iii:i:ii.KS. 171 



:\V.', (l(»:;!t). L.vciiNucuia'i.s i'akai.i.i-.lis Say, 'I'l-ans. Amor. I'hil. Soc, IV, 

 1834, 420; ibid. II, 532. 

 Elongattvoblong, pai-allol. subconvex. Black, shiiiin.LC, very liiiely ahi- 

 taeeous ; antenmx? piceoiis. twd i»asal joints paler; lejjcs and i-ej;;ion of hind 

 angles of thorax reddish-brown, the latter translucent. Thorax slightly 

 wider than long, widest a little behind the middle; apex narrowt'r than 

 base, the latter as wide as elytra; disk not punctured; hind angles obtuse. 

 Elytra seven-striate. the stria^ parallel their full length, finely and distantly 

 l)unctate: intervals sultconvex. smooth. Length 0.5-10.") mm. 



Lake and Kosciuslvo comities; scarce. May 6-()cl(»l)cf 29. Oc- 

 curs near water. 



LIX. AxATKiciiis Lee. 1853. (Gv.. "without - hair.") 



Small oval or obloiio- JiUick or piceons beetles, separated from 

 allied ti-eiicra by tile characters ijiven in the key. One species oe- 

 cnrs ill Indiana. 



314 (1040). AxATRicnis minuta Dej., Spec. Y. 1829, 677. 



Oval, broader behind. Black, shining; antennae piceous. the basal joints 

 and legs reddish-brown. Base of thorax as wide as elytra ; sides feebly 

 cur\ed. converging gradually to apex; disk finely not densely punctate; 

 i)asal impressions deep, short. Elyti'al stride deep, serrately punctate; in- 

 tervals fiat, minutely punctulate. Length 5-6 mm. 



One specimen taken in Posey C^»nnty. A])ril !). A member of 

 the Anstroriparian fanna. 



LX. OoDES Bon. 1818. (Or., ''eg-g + form.") 



Small or medium sized, oval or oblong, bbick or greenish-black, 

 shining beetles, resembling closely certain forms of the genus 

 Aixara. All have the thorax as wide at base as elytra, and the 

 third interval of latter with two dorsal punctures behind the 

 middle. They occur, for the most part, beneath stones, etc., along 

 the margin of lakes and ponds. Five species have been taken in 

 the State. 



KEY TO INDIANA SPECIKS OF OODES. 



II. Elytra with seven stria' eiiually distinct: first joint of front tarsi of 

 male entirely spongy beneath. 

 b. Thorax broadest at base: length 7.5-9 nun. 315. amakoides. 



hb. Thorax l)roadest just in front of base; length 12.5 mm. 



c. Elytral strijp distinctly and closely punctured; form very broad. 



316. AMERICAXUS. 



cc. Elytrjil slri.r liiicly ;iii(l dislaiitly piiii<-liiri'd ; lonii more narrow. 



317. fi-Uviaus 



