On Aquatic Carnivorous Coleoptera or Dytiscido'. 29.^ 



It is very variable in size. The sexual characters seem quite the same as in the 

 aUied species. I think it probable this will prove to be the Laccophilus mexicanus, 

 Aube, (Spec. p. 420). 



California and Mexico. -539. 



Group 1. B. 



105. Laccophilus chilen^is, n. sp. — Ovalis, minus convexus, latiusculus, subnitidus, 

 testaceus, supra plus minusve vage fusco-suftusus, abdoniine pectoreque nigricanti- 

 bus. Long. 5, lat. 3 ni.m. 



This is a rather large species, of sordid colour, owing to the upper surface beinw 

 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 line 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. G19. 



106. Laccophilus tarsalis, n. sp. — Ovalis, sat latus, subdepressus, nitidus, testaceus, 

 prothorace anterius et posterius in medio, elytris, abdomine pectoreque fuscis ; 

 elytris fere impunctati-^, signaturis testaceis. Long. 4, lat. 21 m.m. 



The elytra are irroratetl with fuscous dots, which leave a pale humeral mark 

 and souie 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 transver.se 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. 5iC. 



107. Laccophilus suftusus, n. sp. — Ovalis, baud elongatus, subdepressus, j^erni- 

 tidus, testaceus, elytris fere impunctatis. castaneo-testaceis, signaturis irregularibus 

 (quarum fascia basali conspicua) apiceque pallidis. Long. Si, 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 ; 



2 Q3 



