EROTYLID.E 



which are finely and densely punctate and conspicuously fulvo-pubescent; 

 head two-fifths as wide as the prothorax, finely and loosely but distinctly 

 punctate, with a broad longitudinal impression at each side, which gradu- 

 ally disappears posteriorly; eyes large and prominent, finely faceted; 

 antennae about as long as the thoracic median line, deep black, the two 

 basal joints pale, the third joint shorter than the next two, the 3-jointed 

 club not very closely pubescent, eighth joint a little longer and thicker 

 than the seventh; prothorax but little more than twice as wide as the 

 median length, the strongly converging, evenly and moderately arcuate 

 sides not quite coarcuate with those of the elytra, the tips of the humeral 

 angles exposed; apex deeply sinuate, the angles dorsally much thickened, 

 with the fovea moderate; base transverse, but with a rapidly formed, 

 very strong, somewhat narrowly rounded median lobe, which partially 

 conceals the base of the scutellum; surface evenly convex, with sparse and 

 excessively minute punctulation, rather more visible toward the sides; 

 scutellum transverse, broadly ogival; elytra two-fifths longer than wide, 

 widest barely before the middle, with nearly evenly arcuate sides through- 

 out, rather more so posteriorly, the apex very broadly ogival; surface 

 smooth throughout, except some feeble punctures in the sutural series in 

 nearly anterior half; the serial cellular structure shows feebly through; 

 prosternum compressed medially, the anterior margin acutely prominent 

 at the middle. Length 8.2 mm.; width 5.8 mm. Guatemala (Quirigua). 



The single example of this species was very kindly sent me by 

 Prof. T. D. A. Cockerell, together with some other interesting forms, 

 such as Megischyrus sanquinolentus Lac., Coccimorphus dichrous 

 Lac., Zonarius zebra Fabr., and JEgiihus qiiadrinotatus Chev. I 

 understand they were collected by Mrs. Cockerell. The only 

 species with which this can be compared, is the Mexican Lybas 

 granatus Lac., and, according to the description, this has eight series 

 of impressed punctures and the knees, tarsi and most of the tibiae 

 are blackish-brown, no vestige of which characters can be perceived 

 in cruentissimus. Lybas carbunculus Lac., of Yucatan and Tabasco, 

 is a much smaller species (5 by 2.5 mm.) and it also is described as 

 having rows of impressed punctures on the elytra, though the legs 

 are similarly wholly pale. 



There is in my collection a specimen of the very striking Erotylus 

 quagga of Lacordaire, from Nata, Panama, which comes apparently 

 within the faunal regions considered in the" Biologia," but which is 

 not mentioned in that work. It was originally described under the 

 name onagga (Lac., Mon. Erot., p. 427), which name is, singularly 

 enough, repeated in the next description, though not appearing at 

 all in the index. While the name quagga eminently fits the animal, 

 onagga is meaningless, showing, at least from abstract reasoning, 



