274: DAVENPORT ACADEMY OF NATURAL SCIENCES. 



IIaLESIDOTA A^tr.IGUA, N. Sp. 

 (Plate IX, fig 7 ■?.) 



$ expands nearly two inches. Top of head brown, around eyes rose colored ; 

 palpi rose colored; antenn;e pale brown; collar brown, edned anteriorly with 

 rosoy ; thorax above, brown on patagia' and shining whitish gray dorsally; 

 beneath paler brown; tarsi pinkish; abdomen above and at sides densely 

 pilose, being covered with long, silky, pink fur, with no signs of the suture's 

 between the segments at all visible; beneath not as bright, more of a reddish 

 gre}' color, and not more heavily scaled than ordinary, each segment being 

 distinguished at a glance. Upper surface; primaries silvery white, with a 

 somewhat greyish tinge, and having a slight tendency towards being semi-' 

 diaphanous; the fringe, the edge of costa, the exterior and interior margins, 

 and all the veins edged with brownish, which confines the whitish ground to 

 the cells; secondaries same silvery white as primaries and immaculate. The 

 under surface as above, but the brown color not as dark and more inclined to 

 redish, especially on edge of costa of primaries; the costa of secondaries with 

 a redish brown margin. 



Habitiit, South-west Colorado. Takeit by the party on the San Juan 

 Reconnaisance in the summer of 1877, and by accident was omitted 

 from tlie report on the insects collected by that expedition. 



Mr. G. H. French, of Carbondale, 111., on one occasion sent me by mail 

 for examination a small box of Lepidoptera, among which were the pre- 

 viously described Arctia Geneura.n'nd an example of what I now believe 

 to have been this species. But the contents got damaged during trans- 

 port to such an extent, that in the debris of different examples the frag- 

 ments of wings could not be identified as belonging to the wreck of tl?e 

 body part, and from the remains of the pink abdomen I thought at the 

 time it might be H. Edwardsii, Puck. (Phcegoptera Quercus, Bdl.), but 

 since receiving the above example, I am nearly sure that the one sent 

 by Mr. French was of the same species ; he also received it from Colo- 

 rado. It is without exception the handsomest and most remarkable spe- 

 cies of the genus Halesidota yet found in North America. 



ScniNiA Gulnare, N. Sp, 



(Plate IX, fig. 1.) 



Expands 1% inches. Head, olivaceous; body, brilliant pale metallic oliva- 

 ceous or greenish gray ; beneath grayish, and not so brilliant. Upper surface) 

 primaries shining silvery areenish graj' or olivaceous, somewhat of the tin 

 ot Plmia Modes/M, Hub., but far more'lustrous ; three silvery lines cross the 

 wing; the first, or sub-basal, is straight until almost to costa, whence it turns 

 inwards towards the base at an acute angle; the second starts a little beyond 

 the middle of inner margin, from whence it extends in a curve towards, but 

 not to the apex; not far from the cosia it too is bent abruptly backwards, 

 forming an acute angle ; half way betwee'n the last described line and the outer 

 margin, and curved in nearly the same manner, and with the tooth or point 

 formed by the bind near costa, touching the exterior margin a little below the 

 apex, is the last or third line; between this latter and the exterior margin, and 

 resting on the last is an oblong, pointed at both ends, patch of deep gold; 

 another smaller golden mark is nearly at apex. Secondaries much the same 

 color as primaries near and at exterior margin, but paler on all the interior 

 parts; all fringes silvery gray. Under surface somewhat same color as above, 

 and nearly as brilliant, but devoid of the three transverse lines, and also of 

 the golden patch on primaries ; the latter are pale at edge of costa, and two 

 short pale lines are at the costa on the exterior third of wing; apex with a 



