308 On Aquatic Carnivorous Coleoptcra or Dijtiscidce. 



elytra are suffused leaves, besides the fascia near the base, some small obscure 

 variable marks behind the middle pale, and the dark colour scarcely reaches the 

 ejiipleurfe. The male has the front and middle tarsi but little incrassate ; and has 

 the apical ventral segment subtruncate, with a slight acuminate projection in the 

 middle ; in the female this projection is more acute and longer, and the hind 

 margin is rather oblique on each side, and close to the side is rather deeply sinuate. 

 I have seen but one pair of the species, in rather bad condition. 



Madagascar. CI 7. 



150. Laccophilus cyclopis, n. sp. — Ovalis, sat latus et convexus, nitidus, testaceus, 

 elytris lineis hand interruptis sed ad latera disintegratis nigris. Long. A\, lat. 2r 

 m.m. 



In this species the lines of the elytra are straight lines with irregular edges, and 

 are not interrupted so as to give rise to any appearance of transverse pale bands ; 

 the lines towards the sides are, however, more or less broken up into irregular 

 irrorations. The yellow interstices are irregular being greatly broken up by the 

 black marks especially near the extremity. In the male the front and middle tarsi 

 are distinctly incrassate ; and the ajtical ventral segment is truncate, and but 

 slightly sinuate on each side ; in the female it is deeply sinuate on each side, so 

 that the middle part forms a very broad lobe. The species seems to be very 

 variable in the dark lines of the elytra which are sometimes very black and 

 approximate, though alwaj-s distinctly separated, while in other cases they are so 

 diluted as to appear merely lines of irrorations. 



Southern Africa, (Graham's To^vn, Cape Town, Caffraria, N'Gami). 573. 



151. Laccophilus coniplicatus, n. sp. — Ovalis, sat latus et convexus, nitidus, 

 testaceus, elytris lineis undulatis, baud interruptis nigris. Long. 4i, lat. vix 2| m.m. 



In this species there is a small infuscation of the anterior and posterior margins 

 of the thorax in the middle ; the lines of the elytra are very waved, and are evenly 

 distributed, those near the suture not approaching in their character to straight 

 lines ; b)^ this it is easily distinguished from the closely allied Laccophilus cyclopis, 

 the ventral segments are more or less infuscate. In the male the front and middle 

 tarsi are much incrassate, and the apical ventral segment is truncate but the 

 middle part is evidently produced, so that the hind margin is distinctly oblique 

 on each side ; in the female the middle part is more produced so that it forms a 

 broad short lobe. 



Madagascar. 574. 



