40 Mr. R. E. Turner on the 



tibiae, in the paler hind tarsi, and in the distinctly longer 

 second tergite. The terebra is also distinctly longer than in 

 insularis. Also, but more distantly, related to B. unicolor, 

 Turn., from New Caledonia. Although faint indications of a 

 second transverse carina are present on the median segment 

 of this species, I consider it is better placed in Buodias than 

 in Mesostenus. But Cameron's genera in the Cryptinse are 

 often founded on small characters of doubtful value, and 

 Buodias may have to sink as a synonym of Mesostenoideus. 



Xanthocryptus monticolus, sp. n. 



$ . Fulvo-ferruginea ; clypoo, labro, f ronte fascia mediana longitu- 

 dinali supra dilatata, orbitis internis, orbitis externis latissime, 

 genis, pronoto linea ante alas, mesopleuris macula elevata infra 

 alas, scutello linea obliqua utrinque, lineaque apicali, antennis 

 articulis 7-11, tai'sisque posticis articulo primo apioe, secundo, 

 tertio, quartoque basi albo-flavidis ; capite, antennis, valvulis 

 terebrae, tarsisque posticis articulis primo, quintoque nigris ; alis 

 hyalinis, venis nigris. 



Long. 15 mm. ; terebrae long. 7 mm. ; antennarum long. 13 mm. 



¥ . Antenna} 25-jointed, joints 3-5 very long and slender, 

 each more than twice as long as the sixth joint, all the joints 

 longer than broad. Mandibles strong, bidentate at the apex, 

 the outer tooth the longest. Labrum exposed, rounded at 

 the apex ; clypeus very broadly rounded at the apex, with a 

 minute tubercle in the middle of the apical margin. Eyes 

 very feebly converging towards the clypeus, the mandibles 

 separated from the eyes by a distance about equal to their 

 own basal breadth. Face and clypeus finely and not very 

 closely punctured ; the face less than twice as long as the 

 clypeus. Front and vertex microscopically punctured, the 

 front feebly concave. Thorax minutely punctured, notauli 

 deep and .smooth ; scutellum not much raised, strongly 

 narrowed to the apex, with a smooth transverse depression at 

 the base ; mesopleuias finely striolate, smooth and shining 

 posteriory. Median segment minutely punctured at the base, 

 with a transverse carina arched in the middle and another 

 transverse carina at the base of the posterior slope, the space 

 between the carinaj very coarsely obliquely striated, the poste- 

 rior slope less coarsely obliquely striated ; the dorsal surface 

 twice as broad as long, without spines at the angles ; the sides 

 of the segment finely punctured ; spiracles large, elongate- 

 ovate. Abdomen very finely shagreened ; first segment very 

 narrow at the base, the spiracles situated behind the middle, 



