-&THILLA— ORNEATES. 345 



the harpes are truncate, the upper angle produced and serrate ; from below the middle 

 of the dorsal edge is a rounded lobe, serrate and covered over the surface with a series 

 of dentate papillae. (See Tab. LXXXI. fig. 14.) 



2. -ffithilla lavochrea. 



Mthilla lavochrea, Butl. Lep. Ex. p. 1]0, t. 40. f. 4 1 ; But]. & Druce, P. Z. S. 1874, p. 367 '; 

 Plotz, Berl. ent. Zeitschr. 1882, p. 257 s . 



Alis fusco-nigricantibus indistincte fasciatis ; posticis ciliis ochraceis : subtus ut supra : posticis margine 



externo late, angulum apicalem haud extendente ochraceis : capite et corpore undique alis concoloribus. 

 $ mari similis. 



Hob. Mexico (mm. Brit. 1 ), Atoyac (H. H. Smith), Paso de San Juan (W. Schaus); 

 Guatemala, Polochic Valley (F. D. G. & 0. S.\ Zapote (Champion); Nicakagua, 

 Chontales (Belt); Costa Rica (Van Patten 12 ); Panama, Chiriqui (Ribbe), Calobre 

 ( Arce), Lion Hill (M'Leannan). 



Mr. Butler's description of the male of this species was based on a Costa Rican 

 specimen now before us. We have several others from various parts of our country 

 agreeing closely with the type, the females differing, as usual, in their broader and less 

 pointed wings. 



The most northern limit of its range appears to be Central Vera Cruz, where 

 Mr. H. H. Smith captured two specimens at Atoyac at the foot of the mountain-range. 

 We have no record of its occurrence in Western Mexico, but it is found on both sides 

 of the Cordillera in Guatemala. Its range in altitude extends from the sea-level to 

 about 2000 or 3000 feet. 



The brushes attached to the proximal end of the hind tibiae are not always easy to 

 see. In a specimen lent us by Dr. Staudinger they are plainly visible. 



The male genitalia are like those of 2E. echina, but the erect rods of the tegumen 

 are not nearly so long, nor is there so distinct a lobe on the dorsal edge of the harpes. 



ORNEATES, gen. nov. 



Antennae with a club bent before the middle to form a distinct hook. Terminal joint of the palpi almost 

 hidden by the thicks-set scales of the second joint. Primaries rather elongate, with rounded apex, the 

 cell more than two-thirds the length of the wing, the lower and middle discocellulars subequal and in a 

 line, the third median segment short, about one-third the second segment. Secondaries rounded at the 

 anal angle, the discocellulars feeble, a radial distinctly present, the third median segment short, about 

 one-quarter the second segment, second subcostal segment about equal to the second median. Hind tibi® 

 of the male with a long brush of hairs from the proximal end, rather longer than the joint. 



In coloration the type of this genus, O. cegiochus, resembles the members of Thymele, 

 of which T. fulgerator is the best-known example; the brush on the hind tibiae, 

 however, suggests an affinity with JEthilla, and we therefore place it here for the 

 present. Other structural points indicate that this is not likely to be its ultimate 

 position. 



biol. cente.-amee., Rhopal., Vol. II., January 1894. 2 t 



