Hymenopterenfauna von Paraguay. 193 
broadened at the apex, a spot on each side of the median segment 
close to the base and the coxae beneath yellow; the four basal and 
the seventh abdominal segments, the extreme apex of the fifth and 
sixth and the legs, except the coxae and trochanters light ferru- 
ginous; the sides of the first segment, a band continuous or inter- 
rupted near its apex, a large spot on each side of segments 2—5 
above and below, connected in the middle on the second and third 
segments, a narrow transverse band interrupted in the middle near 
the apex of the sixth, a small spot on each side at the base of the 
seventh and a line on the femora beneath obscure yellow; the base 
of the first abdominal segment and of the anterior femora black. 
Wings hyaline, nervures fuscous, the stigma ferruginous. 
Length 11—16 mm. 
Hab. Bogota (Linvis). 2 specimens. 
Closely resembling E. mimula and E. acuminata in colour and 
form, but the elypeus is very different. The antennae are longer 
than in typical Spilothynnus. 
A third specimen has the elypeus black and the yellow markings 
on the median segment much reduced. 
Elaphroptera eurypyga n. sp. 
9. Clypeus finely and closely punctured, with an obscure carina 
at the base, the apical margin depressed, smooth, broadly and very 
shallowly emarginate. Head thick, more than half as broad again as 
long, closely and rather coarsely punctured, more closely on the front 
than on the vertex, with a deep, longitudinal, frontal suleus. Scape 
shining, sparsely punctured, half as long at least as the flagellum, 
with long fulvous setae at the apex beneath. Thorax and median 
segment deeply but rather sparsely punctured; the pronotum about 
two-thirds of the width of the head anteriorly, slightly narrowed 
posteriorly, more than half as iong as broad. Pleurae smooth and 
shining; the median segment much narrower than the pronotum, 
short, only a little longer than the scutellum, broadened from the 
base and obliquely truncate posteriorly, the posterior surface almost 
smooth. Abdomen with a few large scattered punctures; the first 
segment truncate at the base, the surface of the truncation clothed 
with long grey pubescence, broader anteriorly than long and nearly 
twice as broad at the apex as at the base, the apical margin very 
feebly raised, with a deep groove before it; second segment fully 
half as broad again at the apex as the first, coarsely transversely 
