New Fossorial Hymeno 2 :)tera from Australia. 409 
as the base of the antennae, a short oblique line on each side 
between the antennae, a small spot on the vertex, the margins of 
the pronotum, tegulae, basal angles of the scutellum, a spot on the 
mesopleurae, postscutellum, a broad transverse band emarginate 
posteriorly on the median segment, a narrow transverse band 
narrowly interrupted in the middle on dorsal abdominal segments 
2-6 and on ventral segments 2-4 pale yellow. Wings pale dull 
flavo-hyaline, nervures pule ferruginous. Length 13 mm. 
Hah. Darnley Island {Elgner). 
The female is somewhat intermediate between rotundi- 
ceps, Sm., and luctuosus, Sm., differing from the former in 
the much flatter pronotum, from the latter in the different 
shape and more convex surface of the pronotum, and from 
both in the rather broader pygidium and the shallow 
depressions on the head. The male has the hypopygium 
much broader and more triangular than in either of the 
two species mentioned above, and the colour of the wings 
and median segment differs. Small colour variations in 
the males of Agriomyia seem often to be associated with 
structural differences in the females, and should not be 
treated as of no value. In some genera of the family, 
however, the yellow markings of the male vary very much 
in the same species. 
Agriomyia manifesta, sp. nov. 
9. Head thin, large, not flattened but slightly convex, more than 
half as broad again anteriorly as long, rounded at the posterior 
angles, subopaque and without punctures, with a very short frontal 
sulcus ; eyes small, oval, almost touching the base of the mandi¬ 
bles. Thorax shining and almost smooth, the median segment very 
sparsely punctured, pronotum a little broader anteriorly than long, 
narrowed posteriorly, raised in the middle of the anterior margin 
into an indistinct hump-like prominence which is divided at the 
apex by a very faint longitudinal sulcus, the anterior angles pointed. 
First dorsal abdominal segment transversely depressed at the apex, 
second segment with five transverse carinae including the raised 
apical margin, the basal carina low and very near the second. 
Pygidium elongate ovate, narrowed at the base, with a small tuft of 
bright fulvous hairs on each side. 
Black ; antennae, legs, second dorsal segment and pygidium fusco- 
ferruginous. Length 9 mm. 
(J. Clypeus produced and narrowly truncate at the apex, shining, 
