MACROCIS. : 219 
MACROCIS. 
Macrocis, Reitter, Mittheilungen der Miinchener ent. Ver. 1878, p. 34. 
Corpus breve, oblongum, equaliter ovatum. Caput (maris) longe bicorne, (feminz) utrinque dente acuto ; 
antenne decemarticulate, articulis duobus basalibus validis, tertio elongato, 4° ad 7” perbrevibus, con- 
junctim quam secundus vix longioribus. Tarsi breves, articulo ultimo elongato, validi. 
Before I had seen Herr E. Reitter’s description I had drawn up the characters of a 
genus which I proposed to make for a short and broad species, of which the male has 
two long raised horns on the head curving backwards a little; the female has also two 
dentiform elevations, but little raised. The thorax is unarmed and is very convex, 
hiding the head from above, the horns alone showing in this position. With regard to 
the antenne, it is difficult, even with the microscope, to determine whether there are 
four or five of the very short joints between the third and the club; it is therefore 
uncertain whether they are ten or eleven-jointed; but I think it is as I have stated. 
(Reitter states them to be ten-jointed in his generic diagnosis.) 
Only two species have come under my own notice. 
I think it well to give my own characters as I had drawn them, as I have not at 
present seen Herr Reitter’s insect; they agree so closely with his own that I feel no 
doubt, from his description, that his type is the same species as I had described under 
another name. 
Herr Reitter describes two others from Colombia. 
1. Macrocis taurus. (Tab. X. fig. 25, 3.) 
Macrocis taurus, Reitter, Mittheil. d. Miinch. ent. Ver. 1878, p. 35’. 
Breviter oblongus, equaliter rotundatus, antice posticeque niger, nitidus; thorace parce, elytris obsolete striato- 
punctatis; antennis rufis, pedibus piceis. Long. 2 millim. ¢ 2. 
Mas. Fronte valde bicorni. 
Femina. Fronte utrinque parum elevata, vel dente sublaminato parvo. 
Hab. Mexico !, Cordova (Sallé); GuateMaLA, San Geronimo, Senahu, Las Mercedes 
(Champion); Panama, Bugaba (Champion). 
~ Body glabrous, or nearly so; but under a strong glass the flat-bottomed punctures so 
frequent in this family are sparingly scattered over the thorax, and are more thickly so 
on the elytra, being obsolete at the sides and apex; but the larger ones are arranged in 
series. ‘The thorax is margined at the sides, less distinctly so at the base; being very 
convex, the front and hind angles are both depressed; they are rounded. Less mature 
specimens are piceous. The eyes are very coarsely granulate; the horn in the male 
(the lamina in the female) arises from close to the eye, but they do not appear to me 
to be emarginate. 
Herr Reitter’s description is in a periodical very hard to obtain; and I have to 
acknowledge his courtesy in sending me a copy. I think it well to allow my own 
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