268 - On Aquatic Carnivorous Coleoptera or Dytiscide. 
I. 8.—Genus SUPHIS. 
Middle of prosternum not prominent in front; epipleurze although abruptly 
inflexed, not completely horizontal but only obliquely so (except at the humeral 
angle). 
The three species are found in South America and the Antilles. 
27. Suphis cimicoides, Aube, M.C.—Valde convexus, ovalis, posterius acuml- 
natus, sine pubescentia, nitidus, ex ferrugineo-sanguineo nigroque vage variegatus, 
antennis pedibusque rufis; densius fortiterque punctatus; antennis elongatis; 
corpore subtus nitido, abdomine minus conspicue punctulato, Long. 4 m.m., lat. 
23 m.m. 
South America; Cayenne, Antigua, (Brazil fide Aubé). The specimens from Antigua are 
smaller, and have the antenne a little shorter than the type from Cayenne. 461. 
28, Suphis subtilis, n. sp.—Valde convexus, ovalis, posterius acuminatus, sine 
pubescentia, nitidus, rufo-ferrugineus; supra vage irreculariterque nigro- 
signatus dense sat subtiliter punctatus ; antennis minus elongatis, corpore subtus 
nitido, abdomine minus conspicue punctulato. Long. 35, lat. 22 m.m. 
Very closely allied to 8. cimicoides, but rather smaller, with the antennz 
shorter, and the punctuation of the thorax finer. 
South America; New Granada, Cumana. 462. 
29, Suphis difformis, n. sp.—Valde convexus, ovalis, posterius acuminatus, sine 
pubescentia, nitidus, rufo-ferrugineus, supra irregulariter vageque fusco-signatus ; 
elytris crebrius et evidenter, quam thorace densius punctatis ; antennis elongatis ; 
corpore subtus nitido, abdomine inconspicue punctulato. Long. 4, lat. 2¢ m.m. 
This species is extremely similar to Suphis cimicoides, but has the antennee a 
little longer, and the punctuation of the thorax is more sparing and not so coarse, 
especially towards the front and sides. 
South America; Bahia; Santa Rita, September 1850, Sahlberg; (Orinoco, Klug, in Dejean’s 
collection). 460. 
II. 3.—Group HypRocanTHINI. 
Prosternal process broad, and with broad, subtruncate hind-maregin ; posterior 
femora with a conspicuous group of cilize at their outer angle. 
