ACHEEONTIA.— DILUDIA. 



ACHEEONTIA, Hiibner. 



Acherontia medusa. (Plate XLI. fig. 5.) 

 Acherontia medusa, Butler. Trans. Zool. Soc. vol. ix. p. 597 (1870). 



Allied to A. styx of Northern India, but running to a greater size : primaries above 

 with scarceljr a trace of longitudinal reddish streaks ; suliapical paler area less oblique, the 

 intersecting transverse lines less strongly dentated : secondaries with the black bands usually 

 closer together, better defined, the inner ones generally extending at least to the third median 

 branch: body above darker, the skull-marking on the thorax much darker; head blacker ; 

 abdomen with darker dorsal blue stripe, the transverse bands darker : primaries below with 

 the outer border much more dusky ; secondaries with the outer band more dusky. Expanse 

 of wings 3 inches 5 lines to 4 inches 10 lines. 



Nagasaki [Lewis) ; Yokohama [Jonas] ; Hong-Kong [Bowring) ; Shanghai, &c. 



This species and all the Asiatic forms can readily be distinguished from A. atropos by 

 the absence of the black bands on the ventral surface of the abdomen. 



DILUDIA, Grote. 



Diludia discistriga. (Plate XLI. fig. 6.) 

 Macrosila discistriga, WalJcer, Cat. Lep. Met. viii. p. 209 (1856). 



Brownish ash-colour : primaries with a broad angulated, dark-edged, dusky central band, 

 its outer edge sinuated and followed by a sinuated brown-edged white stripe ; a longitudinal 

 whitish streak just above the submedian vein, and above it across the basal area a dusky- 

 bordered, whitish, angulated band ; a black-bordered apical greyish patch, with dusky centre 

 and deeply notched anterior margin ; six white-bordered black spots in pairs, and followed by 

 single brown spots, near the outer margin ; fringe white, spotted with brown : secondaries 

 smoky brown, with ill-defined paler discal belt ; the costal area, base, an abdominal marginal 

 streak, and the sinuations of the frmge whitish : body whitish at the sides, thorax with an 

 interrupted black border ; abdomen with central and lateral longitudinal black stripes. Wings 

 below greyish, more uniform in tint than above, with two transverse parallel lines and a 

 submarginal band dusky ; body below whitish. Expanse of wings 3 inches 5 lines. 



Hong-Kong [Boivrinc/] ; North China [Cuming) ; Borneo [Low) ; Java [Horsfidd). 



The type seems to be a dwarfed specimen, unless the example from " North China " 

 and those from Borneo are distinct. 



B 2 



