Utth-hnoion Species of Y\\yn\\\'\-di. 139 



Thynnus {^olothynnus) halophilus, sp. n. 



S . Clypeus convex, large and long, truncate at the apex, 

 the middle sparsely punctured, the sides almost smooth, the 

 labrum exposed. Front long and narrow, rather strongly 

 punctured, the inner margins of the eyes almost parallel, the 

 eyes long and narrow ; the antennje inserted much farther 

 from each other than from the eyes and almost as far from 

 the apex of the clypeus as from the anterior ocellus, the 

 prominence between them not much raised, bilobed and 

 deeply eraarginate at the apfx. Thorax closely and rather 

 finely punctured, the pronotum as broad as the head, broadly 

 emarginate anteriorly, the anterior margin raised. Meso- 

 pleurae rather coarsely punctured; the mesonotuai marked 

 with two shallow longitudinal sulci on each side ; the 

 scutellum rather large, truncate at the apex. Median seg- 

 ment sparsely, but very deeply and coarsely, punctured at 

 the base, subtruncate and rugulose posteriorly. Abdomen 

 elongate, about as long as the head, thorax, and median 

 segment combined, the segments constricted moderately at 

 the base and with a raised transverse mark emarginate 

 in the middle just before the depressed apical margin, all the 

 segments sparsely and finely punctured. Hypopygium rather 

 broad, tridentate at the apex, the central spine long and 

 slender from the base, more than twice as long as the two 

 lateral ones. The sixth ventral segment has a very short 

 and blunt spine at each of the apical angles. 



Black; the mandibles (except at the apex), the sides of 

 the clypeus, the inner margin of the eyes broadly as high as 

 the base of the antennae, the margins of the pronotum, 

 broadly interruped in the middle of the anterior margin, the 

 tegulae and a curved line above them, a square spot on the 

 posterior margin of the mesonotum, a vertical band emar- 

 ginate posteriorly on the mesopleurse below the anterior 

 wings, a spot before the base of the intermediate coxse, a 

 transverse mark near the apex of the scutellum and a spot 

 on each side at its anterior angles, the postscutellum, an 

 oblique band on each side on the apical portion of the median 

 segment, curved at the apex and continued on the sides of 

 the segment, and a short transverse band on each side of 

 abdominal segments 1-5 pale yellow ; the legs pale ferruginous. 

 Wings hyaline, nervures pale testaceous, the stigma light 

 ferruginous. 

 Length 6 mm. 



Bab. (Jape York, Q. (TuDiej'); April and May. 

 Type in B.M. 



10* 



