6 PROCEEDINGS OF THE NATIONAL MUSEUM vol.69 



Genotype. — C yrtocoryphes viridicejis, new species. 



FeTnale. — Head hemispherical, nearly as wide as long and about 

 one-half as thick frontooccipitally as wide; as seen from in front 

 the outline is nearly circular, but the eyes are slightly protuberant, 

 especially below, and discontinuous with the cheeks, the latter con- 

 verging a little toward the mouth, the oral margin truncate and a 

 little wider than the distance between the lower ends of the eyes; 

 as seen from above the outline is nearly semicircular, but more 

 strongly rounded at the sides; as seen from the side the outline is 

 also semicircular, with the curvature uniform from occipital to oral 

 margin. Occiput nearly flat or only slightly concave above, the 

 neck inserted near the middle; eyes large, broadly reniform, with 

 the posterior margin moderately and broadly emarginate, widest 

 near ventral end, where the width is a little more than one-half the 

 length, (lorsally almost touching the occipital margin; space between 

 the eyes moderately wide, the part visible in dorsal view of head 

 nearly twice as long as wide and slightly less than one-third as wide 

 as the whole head; ocelli small and in an acute-angled triangle, 

 the posterior pair almost touching the eye margins and remote from 

 the occipital margin; portion of the head below the eyes very short 

 and in frontal view of head not more than one-third as long as wide ; 

 cheeks very short but distinct, and about as long as one-third the 

 width of the eyes ; face convex, almost without scrobes, the antennal 

 sockets placed rather close together at the oral margin, the space 

 between them somewhat greater than their own length and about 

 equal to the space between the sockets and the nearest point of the 

 eyes; above each socket is a short scrobal sulcus no longer than the 

 socket itself ; face and cheeks separated by a slight angulation, which 

 forms an obscure carinalike ridge continuous above with the inner 

 orbits of the eyes. 



Antennae about as long as the body, slender throughout; scape 

 compressed but linear and of uniform width, including the radicle 

 it is somewhat longer than the head; pedicel about thrice as long as 

 wide, distinctly shorter than the first funicle joint and slightly 

 longer than the second; flagellum cylindrical, rather thick, or a 

 little wider than the apex of the pedicel ; funicle six-jointed, clothed 

 with short, rather coarse, decumbent setae, the joints decreasing in 

 length clistad, the first about four times as long as thick, the sixth 

 not quite twice as long as thick; club three-jointed, elongate oval, 

 rounded at apex, hardly wider than the funicle and about as long 

 as the last two joints and one-half of the fourth joint of the funicle 

 combined. 



Mandibles rather small, narrow in frontal view and with two 

 acute teeth at apex, of which the inner one is the larger. Maxillary 

 palpi short, tapering, almost straight, four-jointed ; two basal joints 



