llymcnoptera of the Australian Region. 110 



joint. Clypcus bidentately eraargiuatc in both sexes. Middle 

 tibiae with a single calcar. Seeoud cubital cell triangular, 

 the sides meeting above (or almost meeting) at the radius, 

 receiving the first recurrent ncrvure far along its lower side 

 at one-third or more of its length from the first transverse 

 cubitus, second recurrent received at not half so great a 

 distance from the second transverse cubitus. Abdominal 

 petiole gradually widening from base to apex, about as long as 

 the thorax. Lal)ium with a very elongate linear ligula, which 

 is hairy for nearly its whole length, and bifid at the apex. 

 Labial palpi long, the basal joint inerassate, thickening 

 apically, but many times as long as its greatest width, set on 

 one side with bristly hairs ; second long and slender, but 

 much shorter than the first, thickened at the apex, and there 

 set with two long curved bristles; third slender and elongate, 

 l)ut much shorter than the second, and also armed with two 

 curved apical bristles ; fourth spine-like, not more than one- 

 third the length of the third and much shorter than one of the 

 curved apical bristles of the latter. The palpi of the male 

 are very similar, but they are more slender and the bristles 

 less developed. Maxillary palpi very short, three-jointed, 

 the whole not longer than the third joint alone of the labial 

 palpi ; basal joint elongate but stout and clavate, second 

 very small, but stoutish, third a mere rudiment and very 

 miuute. Inner edge of mandibles ( ? ) with three smaller 

 apical teeth, followed by a very wide one with concave free 

 edges and as wide as the other three together. 



Ectopioglossa ausiralensis, sp. n. 



Black, clypeus, a large spot above it, pointed above and 

 nearly reaching the ocellus, the inner orbits from the clypeus 

 to the top of the sinus of the eye, the posterior orbits, some- 

 times a dot adjoining each of the exterior ocelli, a band on 

 the pronotum dilated at the sides and slightly interrupted 

 in the middle, a large spot on the mesopleura, two curvate 

 lines on the anterior part of the mesonotum in the female, 

 two spots on the tegulse and one adjoining these, two large 

 spots on the scutellum, sometimes united, two great spots on 

 the propodeura, which are deeply emai'giuate exteriorly, an 

 apical, slightly interrupted, band on the basal abdominal 

 segment, two spots at the base of the second as well as a 

 complete apical band on this and the two following segments, 

 the whole (or nearly) of the front tibiae and a large part of 

 the femora, a spot at the apex of the middle femora and the 

 tibiae above, pale yellow. Head with very sparse larger 



