162 JOHN B. SMITH. 



obscura, and I am not at all sure that it will not prove to be such 

 eventually. The size is similar, the secondaries have the same ground 

 color, and the maculation of primaries in the better mai'ked forms 

 of obscura is very similar, though much less distinct. The sj^ecies is 

 nearer to obscura, at any rate than to melanchoUca, though I admit 

 that with jNIr. Edwards' type form alone before me I should have 

 agreed with him in the separation. 



CAUTETHIA Grt. 



Ann. Lye. Nat. Hist. N. Y. viii, 202. 



Small, rather robust, but not heavy. Head large, distinct, not 

 prominent. A slightly pointed tuft between the antennae, which are 

 fusif )rm, rather more than half the length of primaries, with a long, 

 abrupt hook at tip ; ciliate in the % , simple in the ? . Tongue 

 nearly as long as the body, stout. Palpi reaching the middle of 

 front, the joints distinct, not so heavily clothed. Eyes widely sepa- 

 rated, of good size, not lashed. Thorax convex, vestiture scaly, 

 somewhat elevated posteriorly. Abdomen moderate in length, cy- 

 lindro-conic. Legs becoming longer and stouter posteriorly ; tibia; 

 not spinose ; niedian with one pair of spurs, posterior with two pairs. 

 Primaries somewhat elongate trigonate, apex rounded, outer margin 

 oblique ; secondaries trigonate ; venation of the normal type. 



The genitalia of the % are somewhat peculiar ; the supra-anal 

 plate is transversely flattened, the hook but little curved, somewhat 

 bulbous just before tip ; the inferior process is slender, cylindrical, 

 curved, with a bulbous tip. The side piece is elongate, narrowing to 

 the tip ; no distinct clasper. 



Messrs. Grote and Butler placed this genus with Anceryx and 

 Dilophonota ; later, Mr. Grote places it in the " Caudiberbes' in def- 

 erence to the opinion of Mr. Hy. Edwards, who says, as to its loca- 

 tion near Anceryx, " This appears to me to be an error, its coloration, 

 shape of wing, extremely long tongue and tufted abdomen bearing 

 a closer resemblance to the Macroglossime.'" Bois.duval also places 

 it with the latter group. In coloration it is quite as close to Dilo- 

 phonota as to any Macroglossid, while the long tongue is a typically 

 tS]jJun;/id feature. The antennal structure alone, however, would 

 remove it to the locality Messrs. Grote and Butler assigned to the 

 genus, though it does undoubtedly present resemblances to Macro- 

 r/lossa. The abdominal tufting is slight and of no consequence. 



