261 



versus sensiin anguslata, apice coiijunctiiu late ti'uncata, 

 exlus singulafitn paiuin , iiitus ad suturam magis rotun- 

 data, supra modice convexa, iiitida, paiuiii profunda 

 sulcata, sulcis in fundo coriaceis, vitidi-aeneis, intersti- 

 tiis convexiusculis, dorso violaceis, crebre, subtiliter aeneo- 

 punctatisj niargiue lateral! pallide flavo-testaceo. Corpus 

 subtus luteuni, nitidum, obsolete, crebre punctulatum. 

 Pedes concolores. 



^82. Gyrinus abdominalis : oblongo-ovalis, depressius- 

 culus, fusco-aeneus, nitidus- prothoi-ace subtiliter, 

 crebre I'ugoso-punctato, dorso violaceo, vitta tenui, 

 transversa, cuprea, marginibus luteis,- eljtris sulcato- 

 punctatis, interstitiis elevatis, eonfeitim aeneo-punctu- 

 latis, exterioribus violaceo- niicantibus 5 latcribus late 

 pedibusque luteis,- subtus pallide testaceus, abdouiine, 

 apice excepto, piceo-aeneo. Long. 64^, lat, 3|^ niillim, 



Gyrinus abdominalis Aube Spec. Gen. d. Hydrocanth. et Gyrin. 

 p. 722. N:o 45. 



Habitat ad Boschjesmanns Rand. 



283. Orectochilus hicostatus: oblongo-ovalis, convexus, 

 aeneus, nitidus, luteo- marginatus, dense, subtiliter 

 reticulato-punctulatus, albido-sericeusj capite protbo- 

 raceque medio laevibusj elytris costa disci, postice 

 abbreviata suturaque antice late, laevibus, glabrisj 

 apice truncatis, extus leviter einarginatis, angulis ex- 

 ternis breviter acuuiinatis; subtus nigro-aeneus, pectore 

 medio abdomineque luteis, illo basi utrinque nigro- 

 aeneo. Loiig. 8|, lat. 4\ millim. 

 Habitat in CafTraria orientali. 



0. (jlauco aflinis, corpore subtus ex paite nigro- 

 aenco, elytrorum sutura longius ct latius denudata, an- 

 gulis apicalibus exteruis minus productis, ab illo bene 

 distinctus. Caput paullo convcxum, sublilissime, crebre 

 punctulatum, acncum, nilidum, medio et postice cupreo- 

 micans, inter oculos \itta lenui, transversa, violacca, 



