972 MNASALCAS; MASTOR; MNASILUS. By Dr. M. Draudt. 



simpHcissi- M. simplicissiiTius H.-Schdff. (= nigritulus Mab., insignis Plotz, facilis Plotz) (187 k) is the same, but 



'"MS- without a stigma, with sliorter palpi beneath mixed with golden yellow. Frmges dark grey. South America, 

 widely distributed as far as Trinidad. 

 lurida. M. lurida H.-Schdff. (187 g). Above monotonously blackish-brown. Beneath the costal-marginal 



part of the fore wing is somewhat reddish, the distal margin of both wings is brightened up by a somewhat duller 

 brown. Basal part and disc of the hindwing dark red-bro\ni, at the costal margin extended to the apex. Described 

 from Brazil. 

 chrysophrys. M. chrysophrys 3Iab. is likewise very closely allied, but it has somewhat longer antennae, bright yellow 



fringes, and an indistmct, bipartite stigma. Expanse of wmgs: 21 mm. Colombia. 



149. Genus: llnasalcas G. <& S. 



Antennae of ^/g the length of the costal margin, club stout with a long apex. The ^ shows a tripartite 

 stigma: a scent-stripe on the median between both veins, a short one below it, and a triangular part in the 

 middle of the submedian. 



uniformis. M. utliformis Btlr. Monotonously blackish-brown, beneath somewbat browner, with a lighter proxi- 



mal margin of the forewing. Palpi haired blackish-brown. Costa Rica; Trinidad. 



amatala. M. amatala Schs. Above dark brown, also at the base of the hindwing with an oblique scent-scale 



spot. Beneath likewise brown. Costal margin of forewing for two thirds, cell and basal balf of the proximal 

 margm darker, distally to it a row of indistinct, lighter spots. Hindwing dark violettish-brcwn in the basal 

 2 thirds, with some small postdiscal, indistinct, light spots. Expanse of wings: 31 mm. Novo Friburgo. 



circellata. M. circellata Plofz (187 h) according to the figiure by the shape of the scent-organ belongs hereto and 



is perhaps to be combined with amatala. Above blackish-brown, fringes somewbat ochreous-brownish. Beneath 

 browner, basally darkened, on the fore- and hindwings with some small, postdiscal, light indistinct spots, the 

 hindwing also shows a cellular dot. Brazil. 



150. Genus: Mastor G. & S. 



Antennae hah' as long as the costal margin. Costal margin of forewing at the base convex. Middle 

 tibiae spined. The (J has an oblique scent-stripe from the rise of the upper median vein to the middle of the 

 submedian (the stigma is absent in M. perigenes). 



ariubis. M. anubis G. db S. (= perloides Plotz) (187 g). Blackish-brown with a stigma of the same colour; 



beneath the same, palpi intermixed with golden yellow hair ; the base of the antennal club beneath and distally 

 ochreous-yellow ; sometimes there is on the hindwing beneath a postdiscal row of ochreous-yellow dots. Mexico. 



bellus. M. bellus Ediv. (187 h) is easily discernible by the ochreous-yellow fringes of the wings. Arizona, 



phylace. Mexico in May. — phylace Edw. (187 g), according to recent reports, seems to be a second stock of bellus. It 



differs by the head and collar being golden yellow, the fringes, however, dirty grey. In this case phylace (187 h) 



would have to be the name of the species, and bellus its first form of generation. From Colorado, Arizona and 



New Mexico in Jul}'. 



perla. M. perla Plotz (187 g) is larger, above blackish-brown, with ash-grey fringes and similar hairing of 



the bod}'. Beneath on the forewing somewhat lighter, the hindwing ash-coloured, with fine darker veins, a 

 whitish cellular spot and 4 small postdiscal dots m the apical half. Rio de Janeiro. 



perigenes. M. perigenes G. di S. (187 g) is easily recognizable by the absence of the stigma and the hindwing 



beneath being peculiarly radiantly striped brownish and whitish. Mexico. 



151. Genus: Muasilus G. & S. 



Distmguished from the allied genera bj' a hair-pencil on the forewing above below the submedian. 

 Middle tibiae spined; stigma absent. 



peniciUatus. Mil. penicillatus G. cfc S. (= zalma Plotz) (187 h) somewhat resembles above Metron chrysogaster 



(187 d), but the ochreous spots form a complete oblique row as far as below the apex. Beneath somewhat lighter; 

 hindwing with 5 lighter dots in a bent row. Mexico to the Amazon and Brazil. 



sucova. Mn. sucova Schs. has the hau'-pencil below the base of the median and may therefore be best inserted 



here. Above blackish-brown, fringes lighter, forewing with a somewhat darker shade at the cell-end. Beneath 

 the forewing is blackish at the base, violettish-broAvn at the apex and costal margin; a small whitish hair-f pot 

 behind the lower cell-end. Hindwing violettish-brown with a bent row of small grey diffuse patches behind 

 the cell. Expanse of wings: 29 mm. Petropolis. 



