ECPANTHERIA. ARACHNIS. 389 



space ; 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 coll, 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 fore wing tinged 

 with ochreous. 



Hah. Mexico, Jalapa, Oaxaca, type t c5' iu Coll. Oberthiir. Exp. 

 44 millim. 



Genus ARACHNIS. 



Type. 



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



Clem. Proc. Acad. Sei. Philad. 1860, p. 525 aulcea. 



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

 antenna} almost simple ; head and thorax smoothly scaled ; tibise with the spurs 

 short ; abdomen doi-sally clothed with rough hair at base. Fore wing with 

 veins 3, 4, 5 from angle of cell ; 6 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 aboTe angle ; 6, 7 from upper angle ; 8 from middle of ceil. 



A. Hind wing with the ground-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 



grey pompeia. 



IP'. Thorax and fore wing with the markings pale grey... aulma. 

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



half of costal area yellow jpicta. 



h. Metathorax with triangular white patch dilecta. 



B. Hind wing with the ground-colour yellow zu7ii. 



G. Hind wing white albescens, 



D. Hind wing hyaline, with the costal and inner areas brownish. 

 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. 



1940. Arachnis pompeia. 



Arachnis pompeia, Druce, A. M. N. H. (6) xiii. p. 174 (1894); 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; antennae black ; 

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

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

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

 legs ringed with black, the hind tarsi with white rings and crimson 

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



