90 TRAVELS AMONGST THE GREAT ANDES. 



closely punctured all over, stronger than on the head ; base of abdomen 

 closely and minutely punctured, the rest of it shagreened. Coxse punctured. 

 Scape of antenna) covered with a short, more or less erect, white pile ; 

 fiagellum with a depressed almost microscopic pubescence. Head covered 

 with a Avhite, glistening, moderately long pile, longest on the face, and on 

 the top are a few long, erect hairs. Mandibles marked with a few depressed 

 hairs. Pro-meso-and metanotum covered sparsely with long, erect hairs, 

 and witli a sparse pubescence ; the pubescence silvery white, the hairs 

 fuscous, longest on metanotum. Pleurae almost glabrous. Scale of abdomen 

 with a few long, pale hairs. Base of abdomen almost without pubescence ; 

 the rest covered closely with a thick, de-pressed cinereous, intermixed with a 



CAMPONOTUS MAYEI, CAMERON. 

 BODEGAS, LEVEL OF SEA. 



few long, white, glistening hairs ; the ventral surface covered sparsely with 

 longish, scattered white hairs, which are longest at the base of abdomen. 

 Edges of abdominal segments white. Legs with an erect white pile, thinner 

 and longer on femora. Clypeus and front with an indistinct carina. 



Length, 5-6 mia. 



In the table given by Mayr in his paper on the ants of Colombia 

 (Sitzb. d. K. Akad. d. Wissens., 1870), of the species of Camfonotus from 

 that region, the present si^ecies would come in at 19, "abdomen with a 

 silky, shining, depressed pubescence," and may be distinguished from the 

 species with this peculiarity, thus : — 



The pubescence on head, thorax, and abdomen yellow. Antennaj and 

 body mostly reddish auricomus, Rog. 



The pubescence on head and thorax silvery white, on abdomen cinereous ; 

 antennte and body black, except the fiagellum. . . . Mayri, sp. n. 



In size, punctuation, and structurally, it agrees closely with C. crassus, 



