On new Sjyecies of Heterocera from Japan. 473 



EXPLANATION OF PLATE XVI. 



Fig. 1. Rotalia spiculotestn, n. sp. Natural size. 



Fiff. 2. The same, magnified throughout on the scale of l-24th to l-1800th 

 inch, a, chamber broken open, showing the spicular composi- 

 tion and thin structure of the wall ; b, cavity of the chamber, 

 showing the spicular structure of the wall from the interior ; 

 c, dried and contracted sarcode of the animal. 



Fi(/. 3. The same, diagram ; portion of the wall of a chamber, magnified 

 upon the scale of 1-1 2th to l-1800th inch, to show the form of 

 the spicules and areolated calcareous cement, a, spicules sepa- 

 rate ; b, spicules crossing each other ; c, areolated cement. 



LIX. — Descriptions of new Species of Heterocera from Japan. 

 — Part I. Sphinges and Bomhyces. ByAliTHUE G. BuTLER, 

 F.L.S., F.Z.S., &c. 



[Continued from p. 404.] 



Notodontidae. 



33. Phalera sigmata^ n. sp. 



Primaries above white, irrorated with black, brown, and 

 yellow ; a patch of raised white scales closing the cell, and 

 followed by a lunulated oblique brown line from costa to inner 

 margin ; a discal irregular series of brown-edged, embossed, 

 white lunate spots, followed by an indistinct greyish belt ; a 

 series of black ^-shaped markings along the outer margin • 

 secondaries fuliginous brown, becoming darker externally and 

 ochraceous or testaceous at abdominal margin ; thorax white, 

 mottled with blackish scales ; abdomen testaceous, with the 

 anal segments whitish ] antenna ferruginous, with testaceous 

 pencil-like pectinations : wings below of the male testaceous, 

 clouded with brown, body testaceous ; female rather sandy 

 yellow than testaceous. Expanse, (J 2 inches 5 lines, $ 2 inches 

 11 lines. 



(5*, Yokohama {Jonas) ; $ , Hakodate {Whitely). 



This species has the aspect of Dosychira^ but the structure 

 of Phalera. 



34. Bir eta pallida J n. s,T^. 



S ? . Primaries pale straw-yellow, with a large, pale 

 brownish internal patch, reaching to the first median branch, 

 and a longitudinal streak of the same colour through the end 

 of the cell ; an oblique rounded spot of the ground-colour on 

 the lower discocellular ; an oblique sinuated line (angulated 



