On Aquatic Carnivorous Coleoptera or Dytiscide. 295 
which are separate at the base but on the middle are coalesced, the sides are 
broadly yellow but beyond the middle a dark patch reaches the lateral margin, 
the apex is quite pale. In the male the front and middle tarsi are much 
thickened : there is no trace of a coxal file in either sex. 
North America, Texas ; (Colorado fide Crotch). 540. 
111. Laccophilus bifasciatus, Chev. M.C.—Ovalis, latiusculus, subdepressus, 
elaberrimus, pernitidus, testaceus, pectore, abdomine, prothorace medio elytrisque 
piceis, his fascia basali lata, altera pone medium apiceque pallidis. Long. 4, lat. 22 
m.m. 
I have examined six specimens of this species; the sexes are very difficult to 
distinguish, the male having the tarsi almost as slender as they are in the female, 
the last ventral segment is however not so elongate in the former sex as it is in the 
latter. 
J 
Cuba; St. Domingo. 541. 
112. Laccophilus simplex, n. sp.—Ovalis, nitidus, rufo-testaceus, capite thoraceque 
dilutioribus, elytris vix obscurioribus, impunctatis. Long. 33, lat. 2 m.m. 
There is no coxal file in the male of this species, and the apical ventral segment 
is also similar, and without sinuation or truncation in either sex; the male can 
only be distinguished from the female, by the slightly incrassate front and middle 
tarsi. 
Brazil, (Santa Rita, August, 1850, Sahlberg). 543. 
113. Laccophilus remator, n. sp.—Ovalis, minus latus et convexus, nitidus, rufo- 
testaceus ; elytris fere concoloribus, creberrime subtilissime punctatis. Long. 4, 
lat. 2 m.m. 
This is a species very destitute of any salient points; the elytra are without 
markings, and scarcely differ in colour from the other parts; the punctuation on 
the front parts of the elytra can scarcely be distinguished as definite punctures. 
The only individual I have seen is a female, and has the apical ventral segment 
quite simply rounded. The species much resembles L. simplex, but is narrower in 
front, and has the elytra much less smooth. 
South America; Bahia, 5654. 
114. Laccophilus traili, n. sp.—Ovalis, sat convexus, nitidus, testaceus, elytris 
paulo obscurioribus, impunctatis, stria suturali sub-obsoleta. Long. 3%, lat. 2 
m.m, 
