>:5 



6 Hyphydrus^ 



fa grifea adfpprfj. Caput: latum, obtufe rotunda- 

 tnm , nigram, margine verticis ferrugineo. Anten- 

 iise thorace mu!lo longiores, bafi ferruginese, e» 

 troriurn nij^rae. Ihorax quoad ftruduram ut in prae- 

 Cf^denribus, fupra parutn convexus, fub-inaequalis, 

 tutus niger. fciytra lata, ovata, in medio dilatata, 

 apice rotundata, fupra depreffa, nigra , plus minus- 

 .\'t; pubefcentia ; pr^eter punftula crebra minutiffutia 

 tparf^, in dirco interiori obfervatur ftria fat regula- 

 jis e puc6tis paullo majoribus, obfoleta tamen , dz 

 vix rificerto fitu digtujfcenda ; rudimenta ftriae exte- 

 riorls etjaro interdum apparent, Corpus fubtus ni- 

 grum vei nigro-piceum nitidum, fat profunde pun- 

 fta um. Pedes rufo^ferruginei, femoribus pofticis 

 b.'li oiceis. 



Var, b, differt: magnitudine paqllo majori, ca« 

 pite rufo-piceo, antennisque totis obfcure fefruj;i- 

 tjeis; ftaa vero difci adeft, ^ rdi^ua ut in priori, 

 vix fpecie diftinfta, 



ao, H. pubefcenst ovalis planus niger pu- 

 befcens, antennarurn bafi pedibusque fer- 

 rugineis, elytns teftaceis, Itna diici pun- 

 .^ata, 



Var. 6. Elyrris fufco - caflaneis , margine 

 pallidiori. 



Habitat in aquis ftagnantibus paflim, 



Defcr, Praecedenti affmis, led diftindius videtur, 

 p9U'lo brevior, fed latiur, & m^i^^is depreffus; (o- 

 p^rticies ut in prioribus (ubtiliter crebre puntolata, 

 & pube grifea longiori adfperfa. Caput rotundatum 

 nigrum , verticis margine ferrugineo. Antennae bafi 

 ferru^^^m ae, extrorfum nigricantes, Thoracis ftra- 

 ^tura ur in praecedertibus , fupra depreffus, crebre 

 pu d-^tus, antice 6c poltice transverfim impreffas, 

 (oca^ oiger* £iytra magaa ovatai ii\ medio diiata- 



la. 



