Longicom Goleoptera of Japan. 195 



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

 Japan. It is closely allied to L. atra (Laich.), th f ; S having 

 similar flexuous hind tibia? ; 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 which 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 tibia? are also varied with tawny yellow, 

 thus resembling the female, in which yellow is the prevailing 

 colour. 



Leptura dimorpha, n. sp. 

 L. atrce (Laich.) simillima, differt solum thorace feminae supra rufo. 



Nigra,vix nitida, supra breviternigro-setosa, infra griseo-pubescens'; 



capite thoraceque confertim punetatis, hoc convexo, juxta basin 



fortiter depresso, angulis posticis productis ; elytris apice sinua- 



tim truncatis, angulis externis productis, supra crebre punctu- 



latis. 

 J tibiae posticae versus apicem dilatatae et intus nexuoso-carinatac ; 



segmentum ultimuin ventrale quadratum, apice late rotundatum, 



medio late sulcatum. 

 $ thorax supra et lateraliter saturate rufus. 



Many examples. 



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

 I have several examples from Maack's collection which do 

 not differ from German specimens. L. aterrima (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- 

 gitudinaliter convexa, nigra, nitida, pubescens, humeris macula 

 subquadrata, femoribusque et tibiis anticis subtus flavis, palpis 

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

 thorace elongato, ad trientem anticum rotundato-dilatato, deinde 

 sinuatim angustato, angulis posticis longe productis, supra juxta 



