56 FAMILY 11. CAliAlilD.K. 



40 *(220). ScAiuTES SUBTERRANEUS Fab., Syst. Ent., I, 17S5, 124. 



Black, shining. Head \Yitb two deeply indented parallel lines. Thorax 

 subquadrate, sides nearly straight, finely margined, apex trnneate, base 

 angnlate. Elytra distinctly striate, the striiB without punctures. Length 

 15-20 mm. 



Thrtmghoiit tlio Stato ; coiiiniiin, •Ijiimary 1-Jnly 20. Ililior- 

 nates as imago. 



."lO (220a). ScAiuTKs su];sti;iatiis Ilald., I'roc. IMiil. Acad. Nat. !^ci., II, 

 1S44, rA. 



Differs fr'Hii .siihhriiinciis imly in size. I li;ivc seen no intermediate 

 specimens, nor d.i T lind record uf any; luuce I regard it as a distinct 

 rnriii. J.cnglli 2."'> .".O mm. 



('oniiiioii llii-()ui;iiM!l llic Stale. .Vpril 1 -Inly 7. 



XI. DvsciiiRirs Bon. 1818. (Gr., " bad + hand.") 



Small black or In'onzed, sbiiiing species, luiving a globular thorax 

 and flat, bowed mandibles. They live in burrows in wet sandy 

 phxees, along streams and lakes and may be taken in the evening, 

 when they run freely about, or at any time by pouring water over 

 their burrows, which causes them to emerge. About 40 species are 

 known from the United States, eight of which have been taken in 

 Indiana, while two or three others perhaps occur. The principal 

 papers on this and the next three genera are as follows : 



Lccoiiff. — "Synopsis of the Species (Uivina and Allied Genera 

 Inhabiting the United States'' in Froc. Phil. Acad. Nat. Sci., 

 1857, 75-83. 



Zrro;/ff.— "Synoptic Tal)les" in Bull. Brook. Ent. Soc, II, 1879, 

 17. 32, 34. 



KEY TO INDIANA SPECIES OF DYSCIIIRIUS. 



(I. Dursal punctures of elytra, when present, on third intei'vnl <inly. 

 h. Third interYa) of elytra wilh three ])unctures. 



c. Front withimt a Yisi])le transverse imiiressiou ; elytral striu' reach- 

 ing aiiex ; femora lilaclc. Td. nigripes. 

 cc. Front with a deep IransYcrse impression. 



<l. Stria' extending to liasc of elytra, obliterated behind the ndddle. 

 c. Plioi'ax (ransvci'sely ov;it(>; legs ;uid anteima^ wholly reddisli- 

 brown. .")2. (;i,OMri,.osus. 



re. TiioiMx globiilai'. 



/'. Flytrai sti'ia' dccpcf; lilii:c and base of antenniB reddish- 

 brown. ri.''>. LONOUEIS. 



//. Elytral stria^ feeble: legs and antenn.-e black. .^neolus. 



