X, D. 6 Wileman: Notes on Japanese Lepidoptera, III 351 



also thinks that E. difficta is not properly placed in the genus 

 Euchloris, as the larva differs very much in appearance from 

 those of other species of the genus found in Europe. Probably 

 the ova passes the w^inter without hatching, or there may be a 

 second brood later in the year. 



Leech records the species from northern and central China, 

 eastern Siberia, Korea, and Japan. 



Genus MEGAIOCHLORA Meyrick 



Megalochlora Meyrick, Trans. Ent. Soc. Lond. (1892), 95. 



MegalocMora valida Felder and Rogenhofer. 



Plate I, fig. 7, larva; fig. 8, food plant; fig. 9, head. 



Japanese name, schiroseuji-aoshaku. 



Geometra valida Feld. and Rogenh., Reise der Novara (1875), 5, PI. 

 127, fig. 37. 



Megalochlora valida Stgr., Iris (1897), 10, 1; Stgr. and Reb., Cat. 

 Lep. Pal. (1901), 1, 262; Matsumura, Cat. Insect. Jap. (1905), 1, 

 116, No. 1001; Prout, Seitz's Macrolep. of the World (1912), 4, 

 PI. 1, fig*. 1, (^; Sasaki, Insects Injurious to Japanese Trees [Nihon 

 Jumoku Gaichuhen (Jap.)] 3d ed. (1910), pt. 2, 47, PI. 96, larva, 

 pupa, imago, d". 



Geometra dioptasaria Christ, Bull. Mosc. (1890), 9. 



The larva figured (Plate I, fig. 7) was taken in April, 1901, 

 at Kobe, Settsu Province, Honshu, on dwarf oak, Japanese name, 

 kunugi (Quercus serrata Thunb.), and a male imago was bred 

 from it June 1, 1901. 



The coloration of this larva is an example of procryptic colors, 

 affording special protective resemblance.^ In this case the larva 

 mimics the young leaf buds and leaves of the oak as will be 

 observed on reference to the figure. The color of the spines 

 on segments 5 and 12, the lateral blotches on segments 9, 10, 

 and 11, and the anal segment harmonize extremely well with 

 the young leaf buds of the tree, which are of the same color, 

 and render the larva difficult of discovery, although one may 

 search very closely for it. 



Larva. — The following description is taken from my original 

 figure : Length, about 36 millimeters. Light green ; paired dorsal 

 tubercles on segment 3 ; two pairs of long dorsal spines on each 

 of segments 5, 6, 7, 8, 9, and 12, those on segments 5 and 12 

 light red-brown, all the others light green tipped with brown; 

 light red-brown lateral blotches on segments 9, 10, and 11 ; anal 

 segment entirely light red-brown. It is appropriate to mention 



° See Wileman, loc. cit. 



