On Aquatic Carnivorous Coleoptera or Dytiscide. 297 
In this species the elytra are suffused with dark colour, but there is a very 
distinct yellow band near the base formed by united (or nearly united) transverse 
spots, there is a yellow spot close to the side about the middle, and generally 
another lateral mark extending more towards the suture between this and the 
apex. The species however is either a very variable one, or the specimens before 
me from several localities represent more than one species. There is a very slight 
oblique sinuosity in each sex, on either side of the middle of the last ventral 
segment; the male has the front and middle tarsi rather thick: the female has an 
excessively fine groove on the under edve of the epipleura before the apex. There 
is no trace of coxal file in either sex. 
South America ; Monte Video, Uruguay, Parana. 547. 
118. Laccophilus fumatus, n. sp.—Ovalis, fere angustus, subdepressus, pernitidus, 
testaceus, elytris fuscis, impunctatis, fascia flammulata subbasali, macula laterali 
apiceque testaceis. Long. 44, lat. vix 22 m.m, | 
In this species the thorax in the middle of the front and at the base is a little 
darker. The elytra owing to very diffused irrorations appear brownish; they have 
a very distinct yellow band near the base, a yellow mark on the middle of the side 
margin, another small one on the middle of the suture, and some very minute 
indistinct pale marks elsewhere, the apex also being pale: the under surface is 
quite pale. The only individual I have seen isa female, and has the apical ventral 
segment rather long in the middle, and its outline uninterrupted by any sinuation. 
There is not the least trace of any coxal file. 
Brazil. 548. 
119. Laccophilus fractus, n. sp—Ovalis, latiusculus, sat convexus, minus nitidus, 
rufescens, capite thoraceque dilutioribus, hoc anterius et posterius in medio, 
elytrisque fuscis, his impunctatis, signaturis longitudinalibus testaceis. Long. 4%, 
lat. vix 3 m.m. 
The yellow marks of the elytra consist of a humeral spot and some longitudinal 
marks internal to it disposed so as to form an interrupted band, of a longitudinal 
mark near the suture, of some longitudinal marks behind the middle forming an 
obscure fascia, and of an obscure spot near the lateral margin about the middle, 
the apex also is paler. The only specimen I have seen isa female; it has the 
epipleura quite simple: the last ventral segment is long, and has no sinuation at 
the sides. The coxe are infuscate in this individual. 
South America; Santa Rita, August, 1850, Sahlberg. 549. 
120. Laccophilus vagepictus, n.sp.—Ovalis, subdepressus, minus nitidus, rufescens, 
