| Popis: |
Length with mandibles 27,5 mm., that of the left mandible (which is a little longer than the right one) 8 mm. — Ground-color black, covered all over (with the exception however of the tip, the inner margin and the undersurface of the mandibles, the tip of the cephalic horn, and the clypeus) with a delicate brownish grey crust which does not hide the punctuation. The uppersurface of the mandibles, the margins of the thorax and of the elytra, and the scutellum, are densely beset with pale dirty yellow scales; moreover very small scales are present on the whole undersurface, whereas a small number of larger scales are arranged in ten longitudinal rows on the elytra. The tibiae seem to be sharply edged which is caused by rows of densely set erect scales The punctuation of the head is quite similar to that of the thorax; the punctures are round and rather large, very shallow and provided with a point in the centre. The punctures on the elytra are smaller, deeper and more regularly distributed over the surface. The head is large, larger than the thorax; the sides are nearly straight, subparallel, inconspicuously convergent towards the base; the ocular canthus is narrow, straight on the outside, and entire; the space between the eyes and the produced lateral angles of the thorax is flattened in a perpendicular direction; the front margin of the head is regularly concave, perforated in the middle (above the bidentate clypeus) by a large and deep circular hole, and has the lateral angles rounded; the vertex is provided with an elongate horn which is directed forwards, and slightly curved downwards at the tip. The mandibles are slender, about as long as the head and thorax together, slightly curved, furcate at the tip; the upper tooth of the furcation very blunt and curved, the lower tooth pointed and more developed in the right than in the left mandible; the furcation is preceded in both mandibles (of which the right one is a little shorter than the left one) by two teeth of different size; in the left mandible the distance between |
