2 SPHINGID^E. 



abdomen with similar lateral yellow spots ; secondaries black-brown, with a broad central 

 yellow belt : under surface ferruginous, with the usual dusky borders and lines ; abdominal 

 border of secondaries ochreous ; palpi white, pectus whitish ; venter fuliginous, with white 

 marginal dots and two triangular flesh-coloured patches at the base. Expanse of wings 

 2 inches 5 lines. 



Yokohama (Jonas). 



PERGESA, Walker. 



Pergesa mongoliana. (Plate XXI. fig. 5.) 



Pergesa mongoliana, Butler, Proc. Zool. Soc. p. 622 (1875) ; Trans. Zool. Soc. vol. ix. p. 637, larva 

 and pupa figured pi. xci. figs. 14, 15 (1876). 



Primaries above olivaceous, with a grey outer border ; a subapical patch and one or two 

 spots on the disk pale testaceous ; a black spot at apex of costa, and a large black spot on the 

 inner margin near the external angle : secondaries olivaceous, with a dark brown border, an 

 ochraceous spot at anal angle ; thorax olivaceous, with white margin ; abdomen pale brown : 

 disk of the primaries below and nearly the whole of the secondaries mottled with rose-red and 

 speckled with black ; body below whitish, rosy at the sides. Expanse of wings 2 inches 

 2 lines. 



Nankow Pass (Swtnhoe) ; Yokohama (Jonas). 



This species also occurs at Nagasaki. 



TRIPTOGON, Bremer, 

 Triptogon piceipennis. (Plate XXI. fig. 4.) 

 Triptogon piceipennis, Butler, Ann. <Sf Mag. Nat. Hist. ser. 4, vol. xx. p. 393 (1877). 



Allied to T. sjjerchius, but the primaries much greyer, all the lines well-defined, 

 the central ones less divergent ; the secondaries of the male deep piceous or purplish 

 brown, with the usual black-spotted pale anal patch ; body darker, with a dark central 

 longitudinal crest. Expanse of wings, $ 4 inches 6 lines, $ 4 inches 11 lines. 



Yokohama (Jonas) . 



HYLOICUS, miner. 

 Hyloicus caligineus. (Plate XXI. fig. 6.) 

 Hyloicus caligineus, Butler, Ann. Sf Mag. Nat. Hist, ser 4, vol. xx. p. 393 (1877). 



Allied to H. pinastri, but dark smoky grey, without the white markings on the body or the 

 lateral black spots on the abdomen ; the secondaries and the bands on the primaries smoky 

 brown, the two longitudinal black dashes on these wings shorter and more linear. Expanse 

 of wings, <$ 2 inches 8 lines, ? 3 inches 2 lines. 



Yokohama (Jonas). 



