192 EMBRIK STRAND, 
Spüothynnus (?) similipietus n. sp. 
(Pl. 11, Fig. 13.) 
&. Mandibles bidentate; the outer tooth long and acute, bent 
downwards and inwards from the base; the inner tooth very short, 
the margin from the base of the inner tooth broadly obliquely 
truncated. Clypeus not produced, broadly and shallowly emarginate 
at the apex, smooth and shining, with a small acute tubercle at the 
base and a broad, low, longitudinal carina on the apical half. Head 
finely and closely punctured, with sparse black pubescence changing 
to grey on the cheeks, the interantennal prominence strongly bilobed; 
a short, obscure frontal sulcus not reaching the anterior ocellus, the 
posterior ocelli very near together. Antennae longer than the head, 
thorax and median segment combined, the apical joints arcuate, the 
third joint of the flagellum very slightly longer than the second. 
Pronotum minutely punctured, short, rounded anteriorly, the 
margin scarcely raised. Mesonotum closely punctured, scutellum 
moderately convex and more sparsely punctured, the pubescence on 
the thorax sparse and cinereous. Median segment shining and 
almost smooth, longer than the mesonotum and narrowed to the 
apex. Abdomen elongate, slender; the first segment much longer 
than the second, very narrow at the base, a little more than half 
as broad at the apex as the apex of the second segment, with & 
short, shallow sulcus from the base not nearly reaching the middle; 
all the segments shining, with a few scattered punctures. Seventh 
segment narrowly truncate at the apex, the hypopygium not pro- 
jeeting beyond it. 
Black; the base of the mandibles to the base of the teeth, the 
clypeus, except the extreme apical margin and the sides near the 
base, the margins of the eyes as high as the base of the antennae, 
a narrow line at the summit of the eyes, a line on the lateral 
mareins of the head connecting with the band on the outer margin 
of the eyes, an oblique spot on each side between the antennae, the 
posterior margin of the pronotum, a vertical band on the propleurae, 
a median longitudinal band on the posterior half of the mesonotum, 
a curved band on the mesopleurae, a spot above the intermediate 
coxae, the tegulae, a spot on the centre of the scutellum and a 
smaller one at each of its anterior angles, a transverse band on 
the postscutellum and a spot on each side of it, two longitudinal 
bands on the median segment not reaching the base and curved and 
