158 The Philippine Journal of Science i9i8 



both sides with darker color; transverse, orange dorsal patches 

 on segments 3 and 4 (counting head as segment 1) ; two small 

 mediodorsal tubercles on segments 10 and 11 ; one subdorsal 

 series of tubercles on each side of dorsum emitting a few short 

 hairs and running from segment 3 to anal segment; a lateral 

 series of larger tubercles on each side, commencing on segment 

 2, which emit fascicles of ruddy gray hairs and end at the anal 

 segment; ten long, compact pencils of hair, which are black, 

 shaded with ruddy brown at the base; two (one on each side 

 of the head), which belong to the lateral series of tubercles, 

 point forward from segment 2 beyond the head ; two, which belong 

 to the lateral series of tubercles, are situated on each side of 

 segment 12 and curve toward the anus ; six are situated on the 

 anal segment, three on each side, pointing posteriorly; the two 

 central ones belong to the subdorsal series of tubercles, and 

 the four lateral ones (two on each side) belong to the lateral 

 series of tubercles. 



The hairs urticate severely. 



The type of mathura, male, is from northern India. 



The types of aurora, male and female, are from Japan ; female, 

 Yokohama (Jonas). 



Matsumura '" records the life history of Ocneria aurora Butler 

 and gives figures of the male and the female imago, the larva, 

 the cocoon, and the pupa. He says that in Hokkaido it is single- 

 brooded and hibernates in the ovum. The ova, which are covered 

 with hairs from the anal tuft of the female, are deposited on 

 twigs to the number of two hundred or more, and the larvse 

 emerge in the following spring. The larvse pupate at the middle 

 or end of July. The imago emerges in the middle of August. 



Sasaki " also records the life history of Lymantria aurora 

 Butler and gives figures of the male and the female imagoes 

 and the larva. He says that the larva appears in May and is 

 full-grown by the end of June. The imago appears in July 

 and then oviposits. 



Local distribution. — Honshu: Tokyo, Musashi Province, July; 

 Kawai and Dzushi, Musashi Province, July ; Karuizawa, Shinano 

 Province, August; Koyasan, Kishu Province, August (Wileman). 

 Kyushu: June (Wileman). Shikoku: Ohoki, lyo Province, July 

 (Wileman) . 



"Matsumura, Japanese Injurious Insects [Nihon Gaichuhen (Jap.)] 

 (1899), 38. 



" Sasaki, Insects Injurious to Japanese Trees [Nihon Jiamuku Gaichuhen 

 (Jap.)], 3d ed. (1910), pt. 2, 50, PI. 98. 



