Longicorn Coleoptera of Japan. 195 



one of Mr. Lewis's species, wliicli appears not uncommon in 

 Japan. It is closely allied to L. atra (Laich.), the ^ having 

 similar flexuous hind tibi« ; but it is longer, and has the elytra 

 of a tawny-testaceous hue, with the shoulders, tips, and sutural 

 edge dusky. The thorax has the same form as in L. atra^ but is 

 clothed with tawny-golden pile. The antennae of the male are 

 very long and black ; of the female almost equally long and 

 slender, and generally of a tawny-testaceous hue, but sometimes 

 nearly black, except the three or four apical joints. It is in 

 this latter point that the chief discrepancy with Motschulsky's 

 description lies ; for he states " articulis duobus penultimis 

 albidis." On the twofold consideration that the antennae are 

 variable in colour in the female, and that Motschulsky's de- 

 scriptions are well known to be recklessly inaccurate, I do not 

 venture to give a new name to the species. 



Var. ^ . Mr. Lewis has a male variety in Avhich the elytra 

 are blackish, with a curved streak on each side of the scutellum 

 and a fascia near the apex tawny yellow. The anterior and 

 middle femora and tibiae are also varied with tawny yellow, 

 thus resembling the female, in which yellow is the prevailing- 

 colour. 



Leptiira dimorpha^ n. sp. 

 L. atrce (Laich.) simillima, diflfert solum thorace femina) supra rufo. 



Nigra,vixmtida, supra breviternigro-setosa, infra griseo-pubescens'; 



capite thoraceque confertim punctatis, hoc convexo, juxta basin 



fortiter depresso, angulis posticis productis ; elytris apice sinua- 



tim truncatis, angulis extemis productis, supra crebre punctu- 



latis. 

 S tibiae posticse versus apicem dilatatse et intus flexuoso-carinatse ; 



segmentum. ultimum ventrale quadratum, apice late rotundatum, 



medio late sulcatum. 

 5 thorax supra et lateraHter saturate rufus. 



Many examples. 



L. atra (Laich.) is apparently common in Eastern Siberia 

 I have several examples from Maack's collection which do 

 not diifer from German specimens. L. aterrlma (Motsch. 

 Schrenck's Eeisen, Coleop. p. 147) is no doubt the same spe- 

 cies ; in fact the author indicates no difference of the slightest 

 importance in his description. 



^ Leptura xanthoma, n. sp. 

 L. nigrce (Lin.) forma similis, at major. Elongata, supra lon- 

 gitudinaUter eonvexa, nigra, nitida, pubescens, humeria macula 

 subquadrata, femoribusque et tibiis anticis subtus flavis, palpis 

 rufo-testaceis ; capite medio usque ad collum sulcato, punctulato ; 

 thorace clongato, ad trieutem anticum rotundato-dilatato, deiude 

 einuatim angustato, angulis posticis longc productis, supra juxta 



