462 MR. R. E. TURNER ON [May 12, 



shorter than the mesonotum, narrowed and truncate posteriorly, 

 the dorsal surface exceedingly coarsely reticulate, the sides o£ 

 the segment and the mesopleurte coarsely obliquely striated. 

 Mesosternum transversely striated. Abdomen hardly as long as 

 the thorax and median segment combined, smooth and shining, 

 only four segments visible from above, the fifth segment beneath 

 very deeply emarginate, the sides almost encircling the apical 

 segment. Tibise and tarsi not spinose. Black ; the mandibles, 

 antenna;, tibiee, tarsi, posterior femora, and abdomen ferruginous. 

 Wings hyaline, the basal half tinted with fulvous, nervures 

 ferruginous. The stigma is lai-ger than in the common H. stein- 

 dachneri Kohl, and the recurrent nervure is received just before 

 the apex of the first cubital cell. 



Length 8 mm. 



Hob. Cairns, Queensland (jDocld). 



Described from three specimens in the British Museum. 



Harpactophilus tricolor, sp. n. (Plate XXVI. fig. 2.) 



5 . Mandibles slender, bidentate, the inner tooth short. Clypeus 

 smooth and shining, triangular, convex in the middle at the base, 

 with a small triangular truncation anteriorly. Front very broad, 

 with a short prominent carina above the base of the clypeus. 

 Antennee shorter than the head, the scape stout and nearly half as 

 long as the flagellum and less than half as longas the distance between 

 the eyes at the base of the clypevis, the antennae at the base as far 

 from each other as from the eyes. The posterior ocelli nearer to 

 each other than to the eyes, situated on the vertex a little behind 

 the summit of the eyes and fully half as far again from the 

 postei'ior margin of the head as from each other. Front finely 

 longitudinally striated, most strongly just below the ocelli ; vertex 

 almost smooth, very finely striated behind the eyes. Eyes not 

 quite reaching the base of the mandibles. The posterior margin 

 of the head strongly emarginate. Pronotum transverse, very 

 short, narrower than the head by about one-third, the anterior 

 angles acute and prominent. Mesonotum punctured, shorter than 

 the median segment and a little longer than broad ; scutellum 

 short and broad, almost smooth. Median segment rectangular, 

 longer than broad, vei'tically truncate posteriorly, as broad as the 

 mesonotum, rugose ; with a triangular space enclosed by carinse 

 and divided by a longitudinal carina from the base to the apex, 

 the surface of the truncation coarsely transversely striated. 

 Abdomen smooth and shining, as long as the thorax and median 

 segment combined, the six dorsal segments all well defined. 

 Mesopleuree almost smooth. Legs without spines, except the 

 apical spines of the tibise. 



Black; the mandibles, clypeus, front, antennae, cheeks, the 

 head beneath, the tegulje, and the anterior and intermediate legs 

 yellow; the abdomen and the posterior legs light ferruginous. 

 "Wings hyaline, iridescent ; nervures testaceous. 



The neuration is similar to that of R. steindachneri Kohl, but 



