On Aquatic Carnivorous Coleoptera or Dytiscide. 29R 
It is very variable in size. The sexual characters seem quite the same as in the 
allied species. I think it probable this will prove to be the Laccophilus mexicanus, 
Aubé, (Spec. p. 420). 
California and Mexico. 539. 
Group 1. B. 
105. Laecophilus chilensgis, n. sp.—Ovalis, minus convexus, latiusculus, subnitidus, 
testaceus, supra plus minusve vage fusco-suffusus, abdomine pectoreque nigricanti- 
bus. Long. 5, lat. 3 m.m. 
This is a rather large species, of sordid colour, owing to the upper surface being 
more or less suffused with fuscous, though not in a manner to give rise to any distinct 
pattern. I have seen only females, they have a very fine coxal file ; which will no 
doubt prove to be more conspicuous in the male. The species seems closely allied 
to Laccophilus atristernalis, but is smaller and more depressed ; no doubt a sufficient 
series would enable better marks of distinction to be detected. 
Chili. 619. 
106. Laccophilus tarsalis, n. sp.—Ovalis, sat latus, subdepressus, nitidus, testaceus, 
prothorace anterius et posterius in medio, elytris, abdomine pectoreque fuscis ; 
elytris fere impunctatis, signaturis testaceis. Long. 4, lat. 22 m.m. 
The elytra are irrorated with fuscous dots, which leave a pale humeral mark 
and some slender longitudinal marks between it and the suture, the lateral margin 
is very narrowly pale and on the middle has a pale spot, the apex also is dilute, 
and there are moreover some slender longitudinal pale marks, forming the rudi- 
ments of a transverse fascia, some distance before the apex. The only individual 
I have seen is a male, it has the front and middle tarsi a good deal incrassate, and 
has a very distinct but short coxal file formed by deep impressions, about twelve 
in number, ‘The apical ventral segment has its outline entire and uninterrupted. 
South America; Parana. 046. 
107. Laccophilus suffusus, n. sp.—Ovalis, haud elongatus, subdepressus, perni- 
tidus, testaceus, elytris fere impunctatis, castaneo-testaceis, signaturis irregularibus 
(quarum fascia basali conspicua) apiceque pallidis. Long. 32, lat. 2 m.m, 
The colour seems to be variable in this species; the pale brown tint with which 
the elytra are suffused extends over their greater part, but leaves numerous 
irregular, pale, variable marks; there is a more or less interrupted, basal, pale 
fascia, sometimes broken up into separate marks, and behind the middle there is a 
transverse fascia of longitudinal pale marks which are sometimes quite in- 
conspicuous : the dark colour extends quite to the sides, but leaves the apex pale ; 
2Q2 
