1908. J AUSTRALIAN FOSSORIAL WASPS. 465 



Bright golden ferruginous ; the head (except the basal half of the 

 mandibles), the scaj)e, and five basal joints of the flagellum black ; 

 the mesosternum, the four ajDical abdominal segments, a spot on 

 the middle of the petiole, and part of the ventral surface of the 

 petiole and the next segment black. Wings pale flavo-hyaline, 

 very faintly tinged with fuscous at the apex ; nervures ferruginous. 



Length 28 mm., exj). 29 mm. Breadth of mesonotum between 

 the tegul?e 3 mm. 



Rah. Port Darwin {Turner) ; December. 



Allied to A. arclens Sm., but is a much less robust species and 

 less strongly sculptured. 



The male has the mandibles bidentate, the clypeus longer than 

 broad, the second joint of the flagelkun less than twice as long as 

 the third, the eyes convergent towards the clypeus, not parallel on 

 the inner margins as in the female, the mesonotum and median 

 segment much more strongly striated. The antennse are almost 

 wholly black, as are also the disc of the mesonotum and the sides 

 of the median segment ; the apical joints of the posterior tarsi 

 are fuscous. 



Length 24 mm. 



Ammophila eyrensis, sp. n. 



5 . Mandibles quadridentate, the outer tooth very long and 

 acute. Clypeus short and broad, the apical margin dejDressed, 

 very shallowly emarginate in the middle ; sparsely punctured and 

 with a few long black hairs. Antennte inserted close together ; 

 the second joint of the flagellum more than twice as long as the 

 third, which is twice -as long as the first. Eyes parallel on the 

 inner margin, the posterior ocelli a little further from the eyes 

 than from each other. Head subopaque, almost smooth, a very 

 fine transverse sulcus behind the posterior ocelli and not extending 

 beyond them, a longitudinal frontal sulcus from the anterior 

 ocellus, the front between the base of the antennse and the 

 eyes clothed with short, thin, cinereous pubescence. Pronotum 

 coarsely, mesonotum more finely transversely striated ; a longi- 

 tudinal median sulcus on the anterior half of the mesonotum, in 

 which lies a short longitudinal carina. Scutellum longitudinally 

 striated ; the mesopleurte and metapleurfe rugose-striate, the 

 mesopleurse with a short, fine and shallow , vertical sulcus below 

 the anterior wings. Median segment transversely striated, the 

 strife slightly obliqae, coarsely reticulate along the middle, broadly 

 at the base and narrowly at the apex. Abdomen shining and 

 almost smooth, the apical segments not pruinose ; the petiole two- 

 jointed, the first joint seen from above very slightly longer than 

 the second, the two combined a little longer than the posterior 

 tibia and the basal joint of the tarsus combined. Tarsal ungues 

 simple, without pads, the comb of the anterior tarsi rather long, 

 with four spines on the basal joint, excluding those on the apical 

 process. 



Light ferruginous ; the head black ; the mandibles except at 

 the apex, the basal half of the antennfe and the mouth-parts 



30* 



