B74 Mr. W. F. Kirby — Notes on PliasmiJfe 



down the whole length, and tliickly but finely granulated, 

 especially on the thoracic segments, which causes them to 

 appear very finely denticulated on the sides. Prothorax with 

 a raised carina in front and a central transverse sulcus. 

 Abdominal segments 2-7 at least twice as long as broad, 

 the eighth to tenth strongly carinated, the ninth shortest 

 and transverse, the others only slightly longer than broad ; 

 the tenth indented in the middle, to expose the small but 

 strongly carinated eleventh ; operculum boat-shaped, strongly 

 carinated on its hinder half, and not excavated at the extre- 

 mity, which extends as far as the tenth segment. 



IJab. Tonkin (Than Moi), June and July {Fruhstorfer). 



Described from two specimens. 



This interesting species will probably become the type of a 

 new genus when the Lonchodinge are revised. 



Dimensions. 



mm. 



Long, corporis 105-118 



„ capitis 7 



„ pronoti 4| 



„ mesonoti 19-21 



„ metanoti, cum segm. med. . . 18-19 



„ fern, ant 19-20 



„ „ med 14-16 



„ „ post 17-19 



Genus OXYARTES, Stal. 

 Oxyartes lamellatus^ sp. n. 



Male. — ^Rather slender, brown ; head with six tubercles on 

 the hinder edge; antennse pubescent, greenish brown, darker 

 towards the ends of tlie joints, nearly as long as the body, 

 and composed of about sixty joints, irregularly longer and 

 shorter ; pronotum with two erect spines near togetlier in 

 front, and two longer ones (wider apart) behind the first lobe ; 

 mesonotum smooth, inclining to greenish, with a pair of strong 

 spines near together in front and five pairs beliind (one pair on 

 each side of tiie median line, one pair in front of these, sepa- 

 rated by the median line, and one pair on each side before the 

 base of the almost obsolete tegulae), there is also a lateral row 

 of shorter spines, followed by a lower row of tubercles ; meta- 

 notum with two spines between the bases of the wings and 

 three larger ones on the metapleura ; wings black, paler at 

 the base and on the costa, narrowly oval, and extending as 

 far as the middle of the median segment ; meso- and meta- 

 pectus studded witli black tubercles, a distinct tubercle on the 



