ACRONYCTIJJ^^. 



prolegs fully developed, whilst in the Erastriana; the 1st or first two 

 pairs are more or less aborted. 



From the Acronyctince have arisen (1) the GuculUcmce with 

 ciliated eyes, most of the genera resembling the TracJiea-Luperina 

 series, Cosmia and allies resembling Enanjia, and CucuUia having 

 some affinity to Epimecia ; (2) the Badenince with hairy eyes, most 

 of the genera resembling the Trachea-Luperina series, whilst Leueania 

 and its allies resemble the Sesamia group ; (3) the Agrotince with 

 spiny tibiae, most of the genera again resembling the Trachea- 

 Luperina series, whilst HeliotJiis and its allies have close affinities 

 with the Eutricopis group ; (4) the Ar/aristidce which have arisen 

 frorri the Apina-Iclalima group of genera, all these being parallel 

 developments from primitive forms of Acronyctince. 



Key to the Genera. 



A. Fore wing without an areole. 



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

 a>. Fore wing with -vein 10 stalked with 8, 9, 

 or 9 absent. 

 C(r. Frons with rounded prominence witJi 

 raised edges. 

 a^. Proboscis absent ; hind wing with vein 8 

 anastomosing with the ceil to middle, 

 then approximated to it to extremity ... Stomaprontia, p. 

 Ifi. Proboscis t'lilly developed. 

 a^. Hind wing with vein 8 approximated to 



the cell to middle Cepiialospaegata, p. 



h*. Hind wing with vein 8 anastomosing 



with the cell near base only Prombtopos, p. 



b". Frons with slight rounded prominence. 



a^. Abdomen with dorsal crest at base Emarginea, p. 



/;3. Abdomen without crests Miceapatetis, p. 



c". Frons without prominence. 

 0.3. Abdomen with dorsal series of crests. 

 a*. Fore wing with the termen angled at 



, middle JSTeopistria, p. 530. 



b*. Fore wing with the termen evenly curved. 



ff.^ Fore wing with vein 9 absent Cingalesa, p. 



¥. Fore wing with vein 9 present Arboricoknis, p. 358. 



^3. Abdomen without crests. 

 a*. Fore wing with vein 9 absent ; meta- 



thorax with paired crests Neolaphygma, p. 



b*. Fore wing with vein 9 present. 



a^. Proboscis aborted, small Neolita, p. 



b^. Proboscis fully developed. 



rt6. Metathorax with spreading crest Neostrotia, p. 



b^. Metathorax without crest. 

 a!. Tarsi with the 1st joint tufted with 



scales Loi'tiOTARsiA, p. 



6''. Tarsi with the 1st joint not tufted 



with scales Clostero.morpha, p. 



ii. Fore wing with vein 10 from the cell. 

 a^. Abdomen with dorsal series of crests. 

 a3. Pro- and metathorax with spreading 

 crests. 



«■*. Proboscis aborted, minute Neo.monodes, p. 



b*. Proboscis fully developed Fkacaea, p. 6U(). 



