894 On Aquatic Carnivorous Coleoptera or DytiscidcB. 



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 LACCOiVEGTUS. {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 coxse. 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 coxse very large ; wing of metasternum deflexed 

 outside front border of coxa as a very slender, quite parallel-sided, band. Swimming 

 legs moderately well developed, their femora without accumulated setpe at hind 

 angle; their tarsi rather slender, without lobing 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 doinsr. 



-■&• 



I. 57.— Genus AGABETES. {Vide p. 599.) 

 This is an autogenus ; the insect is not at all closely allied to any other at present 

 knowTi ; it is of broad, short, depressed form, not variegate in colour, but with a 

 very beautiful sculpture on the ujjper 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 



