Synoptic table of the genus 0M0PHE0N Latr. 

 Mesosternum covered, scatellum wanting. Body round convex. 



Dr. Horn Monogr. Trans. Am. Ent. Soc. HI. 71 elassifies them 

 as follows: 



Group 1. — JSpei'-Kw broadly oval, shining, elytrel striae almost 

 entirely effaced at, apex, and indistinct at the sides, median thoracic I ins 

 scarcely evident. 

 Dark or nearly black, lateral margin of the thorax and elytra pale, lliopuuc- 

 fn res of the striaefbecomo effaced at rhejniddle also to ~ 



wards the sides 1- libfattUB 



Brilliant ly green withjnarrow pale, bord er. The striae are less deep, tho punc- 

 tures large and more distant, and extending fully § the distance from 

 basejto apex. The puueti«reajfonuing tho lateral striau 

 well defined. 2. nitidum 



Group 2. — Speei$s less broadly oval, less convex and leas 

 shining, elytra! striae attaining ( very nearly ) the apex, lateral striae a* 

 distinct as the discal. 

 El y 1 ra , 1 4 — striate. 



Striae deep, finely aud closely punctured. 3. gHa& 



Striae moderate, pauctnre K rather distant and 



obliterated at apex. i. obliterated 



Striae faint, punctures large, distant 5. robustllln 



BJytta, l.:.-Hf,vi;n.-. 

 Broadly oval 

 Viimtupis of elytral stria*- obliterated at apex. 6. de&t&ttl&l 



Punctures distinct at apex. 

 Lateral margin only, of thurav pale- i. ftIH0riCft&tl2Il 



Lateral, basal and apical margins pale, 8. tesselatum 



Elongate oval. 



EJytral sti-iac m it deeply impressed, fiuely and closely punctured 



flat interspaces. 9. OValo. 



Dark species aie Nos. 1. 2. 4. 7. 9; lighter Nos. 3. 5* $. 8. 



I, Labiatnm. Fab. Syst. E. 1. 248. omgth, 6mm. Bare in the Middle, more 



common in the Southern States. 

 3. nitidum. Lee An. Lye IV. 347. - uitensChaud. Length, 5 •6mm. 111. Ks. 



End- Ten. La. Tex. 

 3. gilae. Lee An. Lye. V. 201. Length, 7mm. Arizona. 

 A. obliteratum. Horn, Trans. Am. Ent. Soc. HI. 73. length, fen. Arizona. 

 8. robustum. Horn, Trans. Am. Ent. Soc. IE. 74. Length, 6. 5mm. N. Scotia. 

 t'.. dentatum. Lee. An. Lye V. 200. Length, 7mm. Aviaona. 



7. americanum. Dej. Spec. V. 58«>. Length. 0-7imn, Uan. East, Middle and 

 Western States. 



8. tes8elatum. Say, Journ. Ac. III. 52. Length, 6 -7mm. Can. Middle States. 



9. ovale. Horn, Trans. Am. Ent. Soc. III. 75. Length, 6. 5mm. Cal. 



The species are found in wet sand, near brooks, rivers or ponds, under 

 stones, chippings or in holes between the roots of plants. By pouring wa- 

 ter over the banks, they are driven out and try to save themselves on the 

 higher parts of the banks, and are so easily captured. - r 



