1908.] AUSTRALIAN FOSSORIAL WASPS. 459 



pale ferx'uginous. Wings hyaline, slightly iridescent ; nervures 

 pale ferruginous. 



Length 5 mm. 



Hah. Mackay, Queensland [Turner) ; April. 



Differs from typical Stigmiis in the non-petiolate abdomen. 



Harpactophilus steindachneri Kohl. 



5 . The posterior ocelli are nearer to the posterior margin of 

 the head than to each other. 



J . The mandibles, antennae, and legs are ferruginous ; the 

 front, cheeks, head beneath, and prosternum golden. The front is 

 much more closely and finely punctured than in the female. The 

 apical dorsal segment of the abdomen is strongly emarginate. 

 As in all the species of the genus, there is a semicircular depression 

 at the base of the second ventral segment. 



Hab. Mackay, Queensland ; October to May. Also from Cairns 

 and Cooktown. 



Harpactophilus bicolor Sm. 



$ . Yery near H. steindachneri, from which it differs in the 

 greater breadth of the thorax, which is almost as wide as the head, 

 the more prominent angles of the pronotum, and the fuscous 

 colour of the wings. 

 Hah. Mysole. 



Harpactophilus kohlii, sp. n. 



$ . Mandibles bidentate at the apex, the teeth short and feeble, 

 the inner tooth a little the longest. Olypeus convex, with a 

 longitudinal carina from the base almost reaching the apex, at the 

 extreme apex there is a small, smooth, triangu.lar truncation ; the 

 sides of the clypeus are punctured. Above the clypeus is a very 

 prominent, narrow, longitudinal carina, on each side of which are 

 short curved stride. The front between the eyes and the base of 

 the antennae is very closely punctured and covered with short, 

 thin, greyish pubescence. Antennae inserted very low down on 

 the sides of the clypeus, far apart, as far from each other as from 

 the eyes, the scape as long as the first five joints of the flagellum 

 and equal in length to a little more than tAvo-fifths of the distance 

 between the eyes at the base of the antennae. Vertex very 

 coarsely rugose-striate, the cheeks very broad and coarsely striated. 

 The ocelli situated in an almost equilateral ti-iangle, the posterior 

 ocelli almost in a sti^aight line with the summit of the eyes, 

 half as far again from the eyes as from each other, and more 

 than twice as far fi-om the posterior margin of the head as 

 from each other. Eyes sui-rounded by a narrow sulcus, which 

 is coarsely and closely punctured. The posterior margin of the 

 head broadly emarginate, and about one-third broader than 

 the mesonotum. Pronotum depressed below the level of the 

 mesonotum and invisible from above. Mesonotum punctured- 

 rugose, more than half as broad again as long ; the scutellum 



