iig HijdrophiluK 



fiifro» Thorax brevis transverfus, anterias aBgtj- 

 ftior, late emarginatus , valde convexus , tenue pun- 

 iitulatas, difco niger, lateribus late grifeo- pallidis, 

 Ei tra inagna, valde convexa, fornicata, fere gibba» 

 iindiquecreberrime&fubtilifijme punftulata, ftriauni- 

 i^ii ad fufuram, bafin non attingente; dorfo antico 

 ji5^;ro. picea, limbo toto late pallide grifeo ; inter- 

 <suiri etym tot-a pallidiora, Corpus mgruna. P^des 

 f uico ' rufcfcv^ntes, 



7, H. orbicularis: fub-hemifph^rlcus ater 

 rxitJduSj creberrime puiiclatuSj eiytris um- 

 ftridds^ pedibus piceis^ 



^ah\ Jijfl. eleut. u 2^2. lu Herbfl» cot, 7* 



Pmiz^ fn, 67. f, 13. 



Habitat in aquis fat frequens. 



Defcr. H. lurido fere duplo major, ftatara Coccl- 

 nell:», fub-iisemifphssricus, totus ater nitidus, fupra 

 iirdique creberrime punctuiatas, Caput magnum ro- 

 tundntum convexum, Palpi & antennse picese , capi- 

 tu-o fufco. Thorax brevis, vaide convexus, antice e- 

 marginatus, latenbus rotundatus* Elytra magna, 

 fornicata gibba , ilria futurali unica , bafm ^non attin- 

 jjente» Corpus nigrum cinereo-pubefcens* Femora 

 cralii nif^ro-picea, tibiistarfisque diiutioribus^ 



Obf, Palporum anticorum articulus fecundus mag- 

 jiua cr iTui jntlatus, 3 & 4 breviores obiongo-ovatse; 

 "Labiam bicve, iate emarginatum; adeoque quoatl 

 Jrfirr, Cib. SpxiXjridiii» omiiiao fimiiis, fed tarfi hujus 

 £eneris« 



8* H. femlnulum: fubglobofus niger niti- 

 dus Isevis, elytris ftria futarali unica pe- 

 cibus jtiiQ-piceiSj 1 



