894 On Aquatic Carnivorous Coleoptera or Dytiscide. 
consists of very numerous impressed lines, those on the apical portion of the wing- 
case taking an oblique direction. 
As at present constituted the genus is South American with two representatives 
in Abyssinia. 
I. 56.—Genus LACCONECTUS. (Vide p. 598.) 
This aggregate consists of only two species ; the individuals are of small size, 
(not more than 5 or 6 m.m. long) and of rather broad, depressed form, of polished 
surface, and of pallid colour, with the wing-cases more or less infuscate. The coxal 
lines are quite obliterated ; the coxal lobes are rather broad, almost without any 
trace of a coxal notch. 
These insects have a resemblance to Laccophilus, on account of their size, colour 
and polished surface, but have no other relationship therewith, and can only be 
placed near the preceding genus, from which they differ, by the absence of any 
coxal notch or incision, by the polished surface without impressed lines, and by the 
less approximate middle cox. The following are additional characters. Thorax 
rather obscurely margined at sides. Prosternal process broad, short, nearly flat, 
finely margined, obtuse at apex. Intercoxal process of metasternum with very 
short impression in front. Hind coxee very large ; wing of metasternum deflexed 
outside front border of coxa asa very slender, quite parallel-sided, band. Swimming 
legs moderately well developed, their femora without accumulated sets: at hind 
angle; their tarsi rather slender, without Jobing of the joints externally, and 
terminated by two very small closely applied claws, which are nearly equal in size. 
The two species known to me are from the East Indian region. 
I should think it was one of these species that Motschoulsky had in view when 
he proposed the name Lacconectus, (Etudes Ent. 1855, p. 83) and I have therefore 
used this name; but the characters he assigns render it by no means certain 
that I am correct in so doing. 
I. 57.—Genus AGABETES. (Vide p. 599.) 
This is an autogenus ; the insect is not at all closely allied to any other at present 
known ; it is of broad, short, depressed form, not variegate in colour, but with a 
very beautiful sculpture on the upper surface, formed by dense and distinct, elongate 
punctures or extremely short lines. The thorax is without lateral margin; the 
coxal lines are perfectly parallel in the front part of their course, and continue so 
till near the extremity, where they are gently divergent, and leave external to them 
a very large and distinct coxal border. 
The prosternal process is much raised along the middle; the middle femora bear 
some erect long setee beneath, and the anterior ones have also some similar, although 
