Hymenopterenfauna von Paraguay. 199 
Blaphroptera deserta n. Sp. 
9. Mandibles falcate; maxillary palpi six-jointed, the three 
apical joints slender but not elongate, the third joint very broad at 
the apex; labial palpi four jointed, much stouter than the maxillary 
palpi. Clypeus short, very broadly emarginate at the apex. Head 
rather strongly but not very elosely punctured, more than half as 
broad again as long, strongly rounded at the posterior angles, with 
a deep, longitudinal, frontal sulcus; the eyes rather narrowly oval, 
not touching the base of the mandibles, with a large deep puncture 
above them. Scape very finely punctured, tbe flagellum about three 
times as long as the scape, the apical joint as long as the two 
next before it combined. Thorax punctured, the pleurae almost 
smooth; the pronotum not more than half as broad as the head, 
longer than broad and rather sharply narrowed posteriorly, a deep, 
smooth, shining depression commencing before the middle and reaching 
the posterior margin occupying more than half the breadth of the 
segment; two faintly impressed lines converging posteriorly running 
from the anterior margin to the depression. Scutellum small, rounded 
posteriorly, the median segment much shorter than the pronotum, 
broadened from the base and steeply sloped at the apex. First ab- 
dominal segment broadened from the base, half as broad at the apex 
as the apex of the second segment, sparsely punctured, the apical 
margin slightly raised with a shallow transverse groove before it; 
second segment finely rugulose at the base, the apical margin strongly 
raised with a broad transverse groove before it, the intervening 
space coarsely rugose between two strong transverse carinae; seg- 
ments 3—5 rather sparsely punctured, finely aciculate at the base; 
the ventral segments finely aciculate and sparsely but rather coarse- 
ly punetured, the fifth segment more closely and coarsely punc- 
tured. Pygidium rather small, almost vertical, the dorsal plate 
elosely punctured, very broadly rounded at the apex, rather longer 
than broad, broader at the apex than at the base; the ventral plate 
projecting beyond and a little narrower than the dorsal, rounded 
at the apex. Tarsal ungues bifid. 
Light ferruginous brown; the apex of the mandibles and the 
front almost black; the margins of the head broadly obscure yellow, 
brighter on each side of the eyes; thorax fusco-ferruginous. 
Length S—9 mm. 
Hab. Bogota (Lisvie). 2 specimens. 
