SUPPLEMENT. 
CNEMIDOTUS (p. 1). 
2. Cnemidotus mexicanus. 
Cnemidotus mexicanus, Wehncke, Deutsche ent. Zeit. xxvii. p. 145 (1883) ’. 
Sat elongatus, pallide testaceus, minus argute nigro-maculatus, sat fortiter punctatus; coxarum laminis poste- 
rius rotundatis. 
Long. 33 millim. 
Hab. Mexico (Flohr 1), near the city (Hoge). 
This insect differs from C. simplex by the much larger punctures of the upper surface, 
and by the margins of the elytra not being dentate near the extremity; it is quite as 
similar to C. 12-punctatus, Lec., but that species has the hind margins of the coxal 
lamine angulate, and the spots of the upper surface much more largely developed and 
very definite. 
In C. mexicanus the thorax is bimaculate at the base and the spots extend inwards 
so as to be united in front of the scutellum ; the punctuation on these spots is coarser, 
but the surface there is not at all depressed. The punctures of the wing-cases are 
black, and so is the suture and a common sutural spot at the apex; the other black 
spots are small and indistinct. The apices of the elytra are strongly sinuate. 
HALIPLUS (p. 2). 
4. Haliplus curtulus. 
Brevis, convexus, fulvus; elytris obsolete nigro-maculatis ; fortiter punctatus, elytrorum interstitiis seriatim 
parce sat fortiter punctatis. 
Long. 33 millim. 
fab. Mexico, Vera Cruz (Hoge). 
Allied to H. robusius, but smaller, with the sculpture much less deep, and the surface 
only very indistinctly spotted. The middle of the prosternum is coarsely margined on 
each side, and there is a raised line, continuous with the prosternal line, on each side 
of the middle of the mesosternum. The coxal lamine are coarsely and closely punc- 
tured, and their hind margins are denticulate at the suture. The head and thorax are 
rather closely punctate, and the latter has no depressions. 
CANTHYDRUS (p. 5). 
1(a). Canthydrus similaris. 
Breviter ovalis, convexus, nitidus, testaceus; elytris castaneis, crebre obsolete punctatis ; prosterni processu 
medio vix perspicue depresso ; coxarum laminis parce punctatis. 
Long. 27 millim. 
