19 , 2 
Wileman: Japanese Lepidoptera, VI 
219 
Time of appearance. — Larva, May and Jtfne; pupa, June to 
September; imago, September to November; ovum, November to 
May. 
General distribution. — From Lake Baikal to Japan. (Jor- 
dan) . 
Genus DICTYOPLOCA Jordan 
Dictyoploca Jordan, Seitz’s Macrolep. Faun. Pal. 2 (1911) 218. 
Dictyoploca japonica Butler. 
Plate 2, fig. 6, full-grown larva. 
Japanese names: Kuso-san, tegusu-ga, kuri-kemushi, tsuzuri-no-nishiki, 
shiragata-ro, kurimushi-ga. 
Caligula japonica Moore, Trans. Ent. Soc. London (1862) 322 (pupa 
case) ( regina Stgr.) ; Butler, Ann. & Mag. Nat. Hist. IV 20 (1877) 
479; 111. Typ. Lep. Het. 2 (1878) 16, pi. 26, fig. 2, d 1 ; Pryer, Trans. 
Asiat. Soc. Japan 12 (1883) 52, No. 191; Oberthur, Ann. Soc. Ent. 
France (1886) 48, larva; Leech, Proc. Zool. Soc. London (1888) 
633, No. 253; Staudinger, Rom. Mem. Lep. 6 (1892) 328; Leech, 
Trans. Ent. Soc. London (1898) 264, No. 5; Matsumura, Injurious 
Japanese Insects [Nihon Gaichuhen (Jap.)] (1899) 75, pi. 32, fig. 
1, imago <$; Staudinger and Rebel, Cat. Lep. Pal. 1 (1901) 126, 
No. 1026; Packard, Proc. Am. Acad. Arts and Sci. 39 (1904) 
564 (larva); Matsumura, Cat. Insect. Jap. 1 (1905) 47, No. 385; 
Nawa, Insect World [Konchu Sekai (Jap.)] 10 (1906) 63, pi. 3, 
larva, pupa, imago d 1 ; Matsumura, Thousand Insects of Japan 
[Nihon Senchu Dzukei (Jap.)] (1909), suppl. 1, 50, No. 82, pi. 9, 
fig. 1, ?; Sasaki, Insects Injurious to Japanese Trees [Nihon 
Jumoko Gaichuhen (Jap.)] ed. 3 (1910) pt. 2, 89, pi. 119, larva, 
pupa, imago Sasaki, Insects Injurious to Fruit Trees [Kwaju 
Gaichuhen (Jap.)] ed. 5 (1911) 216, pi. 70, larva, imago. 
Caligula castanea Swinhoe, Cat. Lep. Het. Oxford (1892) 249; 
Jordan, Seitz’s Macrolep. Faun. Pal. 2 (1911) 218, pi. 32 c, d 1 - 
Dictyoploca japonica Jordan, Seitz’s Macrolep. Faun. Pal. 2 (1911) 
218, pi. 32, c, <?, ?. 
Jordan erects a new genus, Dictyoploca , for this species, 
which was formerly placed in Caligula Moore. 
Genus DICTYOPLOCA Jordan 
Forewing with only two subcostal branches. The distal segments of the 
antennae below more produced at the apex than in Caligula , and with more 
distinct sensory cones, the pectinations of shorter, the apical ones on 
the middle segments of the ? short but distinct. Larva at first black, 
with rows of warts clothed with black bristles, in the following stages: 
greenish yellow below, black above, clothed with long white hairs, then 
more or less completely white with blue spots at the stigmata, small black 
dots, and short transverse streaks laterally. Cocoon with much larger 
meshes than in Caligula. Pupa very rugate, apex of abdomen almost 
