ECPANTUKKIA. AKACUNIS. 389 



sjjace ; a large patch from near base to beyond middle extending 

 from costa to median nervure, and with three large black spots 

 between it and inner margin ; a series of spots angled at lower 

 angle of cell, then incurved ; five spots just beyond the cell ; a sub- 

 terminal series of large spots, the two between veins 3 and 5 smaller ; 

 a terminal series of spots, those at apex, between veins 3 and 5 and 

 below 2 larger, or the black markings confluent and covering nearly 

 the whole wing. Hind wing black, with the cilia yellowish 

 white above and below middle. 



Ab. 1. eminens. Vertex of head, thorax, and tore wing tinged 

 with ochreous. 



Ilah. Mexico, Jalapa, Oaxaca, type t cj' in Coll. Oberthiir. Exp. 

 44 millim. 



Genus ARACHNIS. 



Type. 



Arachnis, Geyer, Zutr. Ex. Schuiett. v. p. 28 (1837), non descr. ; 



Clem. Proc. Acad. Sci. Philad. 1860, p. 525 aulaa. 



Proboscis aborted, minute ; palpi porrect, not reaching beyond the frons ; 

 antenna; almost simple ; head and thorax smoothly scaled ; tibi.-E with the spnrs 

 short; abdomen dorsally clothed with rough liair at base. Fore wing with 

 veins 3. 4, 5 from angle of cell ; from upper angle ; 7, 8, 9, 10 stalked ; 11 

 free. Hind wing with veins 3, 4 from angle of cell or very shortly stalked ; 

 5 from just above angle ; 6, 7 from upper angle ; 8 from middle of cell. 



A. Hind wing with the giound-colour crimson. 

 a. Metathorax with slight white streak. 



a'. Underside of fore wing with the ground-colour of basal 

 half of costal area crimson. 

 a-. Thorax and fore wing with the markings dark fuscous 



g r ey pompeia. 



b'^. Thorax and fore wing with the markings pale grey... aulxa. 

 h^. Underside of fore wing with the ground-colour of bisal 



half of costal area yellow picta. 



/}. Metathorax with triangular white patch dilccta. 



B. Hind wing with the ground-colour yellow zuni. 



G. Hind wing white albescens. 



D. Hind wing hyaline, with the costal and inner areas bi'ownish. 

 a. Fore wing with black-edged brown spots on costa, the terminal 



area with a semihyaline patch mishma. 



h. Fore wing without black-edged spots on costa or semihyaline 



patch martina. 



1040, Arachnis pompeia. 



Arachnis pompeia, Druce, A. M. N. H. (tl) xiii. jj. 174 (1804) ; id. Biol. 

 Centr.-Am., Het. ii. p. 377, pi. 75. ff. 2, 3. 



Head white ; palpi crimson at sides, the third joint black above ; 

 lower part of frons grey-brown with black line above; antoiUKe black ; 

 vertex of head with black-edged grey-brown patch ; tcguUe and 

 patagia grey-brown edged by fine black lines, white at sides ; thorax 

 grey-brown, with fine black lines ; coxte and femora above crimson; 

 legs ringed witli black, tlie liind tarsi with white rings and crimson 

 spots ; abdomen crimson, with broad dorsal black-edged maculate 



