MESOTHEN. 1:39 



fore coxse white in front ; logs black above, white below ; abdomen 

 black with dorsal white bar on 2nd segment, the following segments 

 with narrow bands ■which are yellowish white above, white below. 

 Fore wing hyaline, the veins and margins narrowly black ; the 

 base blackish tinged with yellow; two slight 3'ellow streaks below 

 base of costa ; a small black spot at lower angle of cell ; the 

 terminal line expanding into a small spot between veins and 5. 

 Hind wing hyaline, the veins and margins narrowly black ; the 

 inner area witli some black hair ; the terminal line expanding into 

 a small spot below vein G. 



Sab. Peru, Cnzco, type f c? in Coll. Dognin. Exp. 32 millim. 



*J40fl. Mesotken peifiava. (Plate VII. fig. 10.) 



Mesothen perflava, Kaye, Entom. sliv. p. 145 (1911). 



6 • Head black, the frons and spots above the eyes white ; guise 

 yellow ; palpi at base yellow ; thorax yellow, the patagia above and 

 a dorsal streak black, the shoulders with black marks ; pectus 

 yellow ; legs yellow streaked with black ; abdomen yellow, the 

 two terminal segments black with subdorsal white spots on anal 

 segment, the four basal segments with dorsal and subdorsal 

 black streaks, the latter becoming lateral towards extremity, the 

 ventral valve with a pair of black bars behind it. Fore wing 

 hyaline, the veins and margins black; a slight yellow mark below 

 base of costa and a yellow streak above base of inner margin ; the 

 black on termen expanding rather widely on apical area. Hind 

 wing hyaline, the veins and margins black, the fringe of hair on 

 inner margin yellow ; the underside with the basal area yellow 

 except the costa and vein 1. 



Sab. Brazil, Santos, Alto do Sena (D. Jones), type f 6 in 

 Coll. I). Jones. Exp. 24 millim. 



440 b. Mesothen temperata. (Plate VII. fig. 11.) 

 Mesothen temperata, Scliaus, A. M. N. H. (8) vii. p. 174 (1911). 



<$ . Head black ; palpi with white streaks at sides ; thorax 

 yellow, the tegulse with black patches at base, the dorsum of 

 thorax with black fascia and patch on metathorax; fore and mid 

 legs blackish, the hind legs with the extremity of femora and base 

 and extremity of tibiae blackish; abdomen yellow with dorsal 

 black patch on 2nd segment followed by a large patch on 3rd and 

 4th segments and the extremity black, the ventral surface black 

 at base and extremity. Fore wing hyaline, the veins and margins 

 black, the black on costal and inner margins expanding at base 

 where there is some yellow between them ; a yellow streak below 

 middle of costa ; a black discoidal lunule conjoined to the costal 

 area ; the terminal black band expanding widely on apical area 

 and below vein 2. Hind wing h valine, the veins and margins 



