294 On Aquatic Carmvorous Coleoptera or Dytiscide. 
the hind cox are infuscate to a variable extent. The male has a conspicuous 
coxal file of unusually coarse impressions. There is no sinuation of the apical 
ventral segment in either sex. 
South America; Bahia. 542. 
108. Laccophilus badeni, (Wehncke), n. sp—Ovalis, latiusculus, sat convexus, 
minus nitidus, fusco-testaceus, pectore nigricante, elytris fuscis, prothorace 
lateribus elytrisque signaturis (quarum fascia subbasali flammulata conspicua) 
testaceis. Long. 43, lat. 3 m.m. ’ 
There is in this species, near the base of the elytra, a conspicuous yellow band 
which in two or three places is more or less completely divided by prolongations 
of the dark colour, and with the band is connected a very slender longitudinal pale 
stripe near the suture; there is also a pale mark at the side near the middle, and 
several irregular pale marks forming a transverse interrupted fascia in front of the 
apex, and the apex itself is pale. The elytra have rather a dull silky appearance. 
The male shows an excessively fine coxal file (it is as difficult to see as that of the 
female Dytiscus maculosus) ; its apical ventral segment is not sinuate at the sides ; 
the front and middle tarsi are distinctly thickened. In the female the epipleurze 
are not inflexed near the apex, but become broader at some distance before the 
apex, and then rather abruptly narrow, so that when looked at from the side, 
the edge of the wing-case appears sinuate near the apex. 
Brazil, (fide Wehncke). 552. 
109. Laccophilus nigricans, 1. sp.—Ovalis, angustulus, sat convexus, nigricans, 
antennis, pedibus, capite anterius, et prothoracis lateribus testaceis; elytris fere 
impunctatis, lateribus anterius dilutioribus, ad humeros testaceis. Long. 33, 
lat. 2 m.m. 
The small size and dark colour of this species readily distinguish it. The only 
individual I have seen is a male, it has the front and middle tarsi a good deal 
incrassate ; there is a fine, indistinct coxal file; the apical ventral segment is not 
at all sinuate at the sides. 
South America; Parana. 553. 
GROUP 2. 
110. Laccophilus quadrilineatus, Horn. Tr. Am. Ent. Soc. 1871, p. 330.—Ovalis, 
elongatus, sat convexus, nitidus, testaceus, elytris levigatis, late irregulariter 
fusco-signatis, signaturis antice in lineas divisis; prothorace basi medio acutius 
producto. Long. 6 m.m., lat. 3 m.m. 
In this species the marks of the elytra consist of some longitudinal linear marks, 
