258 On Aquatic Carnivorous Coleoptera or Dytiscide. 
L 
thorace anterius in medio et posterius magis obscuro, elytris fuscis signaturis 
longitudinalibus testaceis. Long. 44, lat. 22 mm. 
The marks of the elytra are rather indefinite, they consist of some longitudinal 
marks forming an ill-defined pale broad band, descending in an oblique manner 
from the shoulder towards the suture; the apex is pale but in front of it the 
colour is darker than elsewhere; there is also a pale mark near the side about the 
middle: the upper surface is rather dull, but the elytra show scarcely any traces 
of punctuation. The only individual I have seen is a female ; the epipleura bears 
a groove on its under edge, which commences broadly and abruptly, and so causes 
the margin of the elytron when viewed from one side to appear a little dilated at a 
spot some distance before the extremity. The apical ventral segment is rather 
long, and without any sinuation of its outline. 
South America ; Santa Rita, August, 1550, Sahlberg. 550. 
121. Laccophilus rotundatus, n. sp.—Ovalis, convexiusculus, minus nitidus, sub- 
sericeus, testaceus, prothorace in medio, pectore, abdomine elytrisque fuscis, his 
fascia subbasali signaturisque post medium testaceis. Long. 4, lat. 23 m.m. 
Near the base of the elytra there is a rather narrow, somewhat irregular, pale 
band, indistinctly interrupted at the suture ; there is also a pale mark at the side 
near the middle, and several large, coalescent, pale marks, forming a broad, 
flammulate mark behind the middle, and the apex itself is also pale. In the male, 
I can see no trace of a coxal file ; the front and middle tarsi are distinctly incrassate. 
The female differs in the simple tarsi; but very little in the structure of the epipleuree. 
‘The species is very similar to L. suffusus (No. 107), but is much smaller. 
Brazil. 618. 
122. Laccophilus bicolor, (Cast.) Aubé, M.C.—Ovalis, sat latus, subdepressus, 
minus nitidus, rufescens, elytris fascia lata transversa fusca. Long. 4, lat. 2 m.m. 
The elytra in this species are quite pale at the base and apex, and are broadly 
darker across the middle ; in the dark band there is an obscure pale spot near the 
margin ; I find in the individual examined only very indistinct signs of the second 
subapical band mentioned by Aubé in his description. The only individual I have 
seen is a female, and has the epipleura nearly simple, and the apical ventral 
seoment rather long, and without any sinuation. 
South America ; (Cayenne, Coll. Bouvouloir). 551. 
123. Laccophilus undatus, Aubé, M.C.—Ovalis, sat convexus, minus latus, 
nitidus, rufo-testaceus, elytris dense subtiliter punctulatis fusco-testaceoque varie- 
gatis ; antennarum apice infuscato. Long. 4, lat. 2 m.m. 
