COBALUS. By Dr. M. Draitdt. 957 



R. bomax Scfis. Dark brown, on the forewing with a narrow . transverse white hyaline spot between imnax. 

 the median veins and a very small round spot above it. Beneath dark brown, tinted violet, on the forewing 

 the anal angle and proximal margin are lighter brown. Hindwing with a small, yellow cell-spot and a dot behind 

 the lower cell-angle. Expanse of wings: 30 mm. Petropolis. — zaba Str. belongs perhaps as a form to it. it -aha. 

 is distinguished by 2 minute subapical dots, only one more small cell-spot, the hindwing beneath being 

 unmarked. Mexico, Ai-gentina. 



R. tanaris Sc.hs. is above as the preceding, but without the narrow lower hyaline sjiot. Beneath the tmiaris. 

 forewing has a liroad lighter brown distal margin and apex and is spotted as above, but with a light transverse 

 stripe below it. Hindwing tinted violet above the median and the lower branch. Expanse of wings: 3(> mm. 

 Brazil (Tijuca in tlie Organ Mouiitains). 



R. dyma Plotz (185 g) is above dark brown with 3 white subapical dots, 2 large white postdiscal .sjjots 'liima. 

 and a yellow submedian diffuse spot in front of which the lead-coloured scent-stripe is situate on the .submedian. 

 Hindwing with a white dot behind the lower cell-angle, and with ochreous fringes. Beneath light reddish- 

 brown, disc of forewing black, being continued towards the margin like a diffuse patch above the lower median 

 vein. Hindwings with darker brown basal and discal bands and small triangular spots on the margin Ijetween 

 the veins; beside 2 white postdiscal dots there is a cell-dot. Brazil. 



R. advena sp. nov. (185 g) is smaller; the blackish-brown forewing shows 2 small, white, hyaline cell- aihrna. 

 spots, 2 postdiscal spots the lower of which is much larger than the upper, and three subapical dots. HindMuig 

 with a hyaline dot behind the lower cell-angle. Beneath duller, the anal angle of the i'oi-ewing lighter, hindwing 

 with a white cell-dot and 2 behind the cell. Bolivia; South Brazil. 



R. luctatius Schs. is above black, on the head with a slight green reflection. The forewing exhibits h(ctalhis. 

 2 small greyish-white spots between the median veins and above them. Beneath duller and lighter, the .spots 

 whiter, clearer, near the anal angle t greyish-brown spot; on the hindwing 2 reddish dots behind and below 

 the cell. Me-S-ico, Costa Rica. 



R. cynea Hew. (= erebina Mschlr.. tersa MscJilr., kasus Jlschlr.) (185 h). Eorewiag with only .? small rijuea. 

 white spots, one of which is subapical; hindwing unspotted. Beneath the hindwing shows a cell-dot and 3 be- 

 hind it, the anal angle of the forewing is broad, white; head and thorax with a gi'een reflection. From Mexico 

 to Colombia and Venezuela. 



R. bistrigula H.-Schiiff. (= alus Mab., velleius Plotz) (185 h) is above very similar; beneath the forewing hi-itrUjula 

 does not show a white anal angle, and the hindwing is entirely uni-coloured blackish-brown, like the head and 

 thorax. From Panama to Guiana, the Amazon and Bolivia. 



R. melius Hbn. (= irma Mschlr.) (185 h) is above quite blackish-brown with a long, lighter stigma; nirHus. 

 forewing towards the proximal margin and hindwing on the anal fold long-haiix'd. Beneath the wings are tinted 

 purple, forewing at the anal angle lighter, at the apex and distal margin grey. Of the same colour are the distal 

 and proximal margins of the hindwings. Mexico to Colombia, Brazil, and in Trinidad. 



R. anthracinus 3Iab. (= epaphus G. <£• »S'.) (185 h) is much larger than inelius, above the same; well unihnici- 

 discernible on the hindwing beneath by the distal margin being broadly coloured ochreous-yellow analwards. 

 Guatemala to Brit. Ciuiana. 



R. megalops G. & S. (185 li). Above uni-coloured blackish-brown; beneath hindwing as in cynea, iticgalops. 

 but the forewing without a white anal angle ; head and eyes remarkably large, frons and prothorax with lustrous 

 green hair. Mexico, Costa Rica and Panama. 



126. Genus: 4'ol>:&his G. d- S. 



Antennal club with a long, turned-round apex; palpi erect; hindwing at the costal angle somewhat 

 prolonged, analwards somewhat convex. The (^ is without the scent-scale stripe. 



C. fidicula Heio. (= hesiodes Plolz) (185 i). Forewing with 3, sometimes 4 white spots, 1 or 2 of which 1id>cula. 

 are subapical, the lowest spot being t!ie largest. On the hindwing before the middle of the distal margin an 

 oval white spot. Beneath more reddish, otherwise as above, but the proximal margin of the forewing .shows 

 a fifth white spot. Honduras, (Jo.sta Rica. Panama. 



C. virbius Cr. (= hersilia Plotz) (185 i) is very closely allied to fidicula, with broader and shorter rirbiu.s. 

 wings, the white spot of the hindwing extending to the distal margin. Brazil (Rio de Janeiro). 



C. gabina G. d-. S. (185 i) differs from the preceding by a white cell-ispot, and the hindwing being quite r/ahina. 

 unspotted. Beneath somewhat lighter. Mexico. 



C. trimaculata Plotz (185 h) has above close together a double cell-spot and below it a large white ir'nnamlain. 

 spot, a small one being behind it. Beneath the same, little lighter, with a large, yellowish-white submedian 

 .spot of the forewing. From Brazil. 



C. bryanti Weeks is doubtfully placed here. Above dark brown, basal half of co.stal margin strewn hryanli. 

 with golden 3'ellow: forewing with 2 white subapical dots; 3 white postdiscal spots, the lowest being the largest. 



vim. 



