2 ARCTIAD^. 



appears to be always free at. the base, this being rarely the case in 

 the Arctids ; this occurs in various parts of the Noctuidie, such as 

 Stilbia in the Caradrinhnr, Ehanidopliorn, and Eligma in the 

 NoctuiiHP ; several genera in the Tarache group, all the genera of 

 Sarrothripime, several of the allies of Acontia (these last two having 

 also the Arctid character of a bar-shaped retinaculum), and many 

 genera in the Hi/peniiue. 



The nearest allies of the Arctiadce among the Noctuidce seem to 

 be the Sarrothripince and Acontiana', the former being collaterals of 

 the Lithosiame, the latter of the Arct'mna;. 



Larvcf with all the prolegs present ; the tubercles normal, con- 

 verted into large warts bearing many hairs and forming a cocoon 

 of silk interwoven with hair. 



In the abnormal Tyrio. jacohcece the warts have only one hair, 

 except V which has two hairs and vii with four, this reduction of 

 the hair being correlated with its warning coloration. 



Key to the Genera. 



A. Hind wing with vein 4 absent. 



a. Fore wing with vein 10 stalked with 7, 8, 9. 

 a}. Fore wing with vein 9 absent. 



a?. Palpi rostriform. downcurved Holomelina, p. 188. 



6^. Palpi short, not reaching beyond the frons. 

 a^. Hind tibia? with the medial spurs absent ... Epimydia, p. 203. 

 P. Hind tibiae with the medial spurs present... Euprepia, p. 203. 

 h^. Fore wing with vein 9 present. 



a^. Fore wing with veins 3, 4 stalked Neonerita, p. 87. 



b'^. Fore wing with vein 3 from angle of cell. 

 a^. Hind wing with veins 6, 7 coincident. 

 a*. Fore wing with vein 11 stalked with 7, 8, 



9, 10; palpi porrect Pseudalus, p. 253. 



b^. Fore wing with vein 11 from cell; palpi 

 upturned, 

 a'. Palpi reaching vertex of head ; hind wing 



with the costa lobed Premolis, p. 26. 



/*'. Palpi reaching middle of frons; hind wing 



with the costa evenly curved Eupseudosoma, p. 27. 



h^. Hind wing with vein 8 stalked with 6, 7 ... Demolis, p. 31, 

 c3. Hind wiug with veins 6, 7 stalked, 8 from 

 cell. 

 a*. Fore wing with vein 7 from 8 beyond 9 ... Virbia, p. 197. 



6*. Fore wing with vein 7 from 8 before 9 Aphyle, p. 19. 



d?. Hind wing with veins (i, 7 from cell Thvromolis, p. 68. 



■C-. Fore wing with vein 3 from before angle of 

 cell. 

 a^. Hind wing with veins 3, 5 stalked or coin- 

 cident, 

 a*. Fore wing with vein 10 from 8, 9 beyond 7. 

 a'. Hind wing with veins 3, 5 and 6, 7 coin- 

 cident. 

 a'^. Hind wing with vein 2 .stalked with 5 ... Neaxia, p. 30. 



J'^. Hind wing with vein 2 from cell Eriostepta, p. 30. 



/»'. Hind wing with veins 3, 5 and 6, 7 stalked. 

 a^. Palpi upturned, reaching vertex of head. Ar^omolis, p. 38. 



