306 On Aquatic Carnivorous Coleoptera or Dytiscide. 
on each side of the middle, the emargination however is very slight especially on 
the left side. In the female the apical sezment is much less truncate, but still it 
is a little abbreviated, and is scarcely sinuate on each side. 
Arabia, (El Hedjaz, Dr. Millingen). 1170. 
144, Laccophilus wehnckei, n. sp.—Robustus, ovalis, latus, sat convexus, 
nitidus, testaceus, elytris vage castaneo-saturatis, sed basi late pallidis. Long. 43, 
lat, vix 3 m.m. 
In this species, the elytra are suffused with a darker colour in such a way as not 
to give rise to any well defined mark; a stripe along the suture is dark, the 
large dark cloud scarcely mixes with the sutural stripe, and leaves a broad space 
at the base quite pale, and though the limits of this cloud are very ill defined it 
does not extend either to the sides or apex. I am acquainted only with the 
female; the apical ventral segment is elongate in the middle so that it is very 
oblique on each side, and has no sinuation, it is a good deal compressed 
longitudinally in the middle towards the apex. 
Africa; Zanzibar. 620. 
145. Laccophilus siamensis, n. sp.—Ovalis, subdepressus, pernitidus, testaceus, 
clytris castaneis, ad latera et ad apicem fasciaque subbasali lata testaceis ; 
prothorace basi in medio minus producto. Long. 3%, lat. 2 m.m. 
In this species the elytra are dark across the middle, and the dark colour 
invades in an irregular manner the apical yellow portion, so as to give rise to some 
appearance of a subapical pale fascia; the broad pale fascia near the base is very 
distinct. The male has the front and middle tarsi but little incrassate: the hind 
margin of the apical ventral segment is truncate, and a good deal sinuate on each 
side, the sinuation being most abrupt near the outer angles; in the female the 
central lobe is very elongate, and the lateral angles are also distinctly projecting. 
Siam (Bangkok). 568 
Grovp 7. 
146. Laccophilus grammicus, n. sp.—Ovalis, sat convexus, nitidus, testaceus, 
prothorace basi in medio, elytrisque sutura et lineis latis ad basin abbreviatis et 
ultra medium plus minusve interruptis, nigris. Long. 4, lat. 2¢ m.m. 
The elytra are marked with thick straight black lines, the edges of which, how- 
ever, are irregular, so as to form more or less distinct transverse connections 
between the lines ; the suture is black from beginning to end, the second line from 
the suture is longer than the other, and reaches nearly or quite to the base ; the 
