rill': siiiNiNc I'liNcirs hkkti.ks. 491 



coxtvsniall. i-oiukIihI jukI widi^ly scpnc-itcd ; liiiid i>iics oviil oi' ti'iiiis- 

 verse, also widrlx- scpjii'.-ilcd : larsi ."i jdinlrd. I()ii.u- and slnidcr. 



About 200 species of Seapliidiidie aiv kimwn. 41 of wliich have 

 been deserib(Hl from the United States. The pi-iiicipal literature 

 treating of tli<' rainily is as follows: 



/>rrfy;//r.— "Syn..|)sis oF the Seai)hidiid:i' of llie V. S.." in Proe. 



Phil. Aead. Nat. Sei.. ISOO. ?,2^-'^24. 

 Cas(}i. — ^"Syiu»psis of the Scajihidiida'." /// Ann. N. V. Acad. 

 Sei.. VIT. ISfU. 510-5:?:^ .lourn. X. Y. Hiitoiii. So.-.. VIII. 

 1900, 55-60. 

 Representatives of four of tlic seven yenera comprising;- the 

 family have been taken in Indiana, wiiile those of two others may 

 occur. 



KKV TO INDIANA (iENKUA OK SCAPU I Dl U).!:. 



«. Scuti'Uiim distinct : antenna^ with a brond, alinipl and somewliat flat- 

 tened ."(-jdinted club; el.vtral punctures in rows. 

 h. Hind tibia' not si»inous; eyes eniarglnate ; liind an.^les of thorax acute 

 and somewhat prolonged backward. I. Scapiiidium. 



^?>. Hind tibi:e with rows of small spines; eyes entire; hind angles of 

 thorax not jirolonged. Cyparium. 



aa. Scutellum minute or wanting; antenn;e slender, witbovit distinct club; 

 el.vtral i)unctures. when present, scattered. 

 ('. Third antennal .loint elongate and cylindrical; scutellum usually in- 

 visible, when present transverse. 

 (7. Body oval; sutural stria of the elytra reaching the base; hiud 

 coxie widely separated. II- B.i:ocera. 



(hi. Body narrowed, more or less compressed; sutural stria not reach- 

 ing the base; hind coxne less separated. III. ToxiniuM. 

 cc. Third luitennal .joint very short, wedge-shaped or triangular, nar- 

 rowed to the base; scutellum jiresent, minute, triangular. 

 e. Length 1.5 or more mm.; hind coxal plates very sliort and their 

 curve developed only on the inner side. IV. Scaphisoma. 

 ee. Length less than 1 mm.; hind coxal plates semi-elliptic; antennre 

 shorter and stouter. Scaphiomicrus. 



I. ScAPHiDiUM Oliv. 1791. (Gr.. "tub or boat ^ small.") 



Here belong; our most common meml)ers of the family, readily 

 distinguished by the larger size, emarginate eyes and produced hind 

 angles of thorax. The male is known by having a large, depressed, 

 ])unctate and i)ubcscent area on the middle part of the metasternum. 

 One species and two varieties have been tak(Mi in the State. 



KF.V ro INmANA SPECIKS OF SCAPI I lUHM. 



a. Elytra each with two to four short rows of large punctures. 



/(. Elytra each witli two transverse, reddish si)ots which extend inward 

 two-thirds the width. 042. qi'adkiguttatum. 



