TWENTY-NINTH ANNUAL MEETING. 57 
and below, red. A female from San Blas is larger (30 mm.), and has the 
abdomen broader, with narrow,-complete hind margins to the segments. If the 
thoracic stripes were present, they have been wholly obliterated. 
Johnson has recently stated that MW. incisus Macq. is the same as MW. pachy- 
gaster Westw. If this be the case, the present species cannot be M. incisus, the 
very brief description of which might possibly apply, except for the thoracic 
stripes. 
Mypas annulicornis Westwood. Male and female specimens from Mexico 
agree fully with Westwood’s description. The hair of the face in both sexes is 
black throughout. Gerstaecker believed that annulicornis is the same as testa- 
ceus, which has white hair on the sides of the face. The species are in all 
probability distinct. 
Mypas cingulatus,n. sp. Female. Differs from M. notospilus Wied. (or 
what I identify as notospilus) in the antennze being longer, in the wings being 
dark brown anteriorly, and in the much darker legs. In M. notospilus the 
antenne are distinctly shorter than the thorax, while in this they are fully 
as long. The lamella is not longer than the third joint and is less dilated. The 
face is more protuberant below, and, except the margin, is deep, shining black, 
with short, sparse, yellowish hairs on the lower part. The antennz are deep 
black, save the expanded portion, which is deep red. The four anterior femora 
are pitchy black, the hind pair deep black. The hind femora are more dilated 
than in the following species. The wings are deep brown in front, the posterior 
part yellowish hyaline, the veins broadly brown. Length, 20 mm. 
One specimen, ‘‘Shore of Rio Paraguay, below Concepcion, Dec. Forest, on 
ground.”’ H.H. Smith. 
Mypas notospilus Wiedemann. A single female specimen, from Brazil, seems 
to belong to this species, though it shows differences from the description. The 
antenne are in large part reddish, the middle of the face is yellowish, the abdomen 
is less dilated than is figured, the wings are only slightly clouded with brownish. 
The antenne are shorter than in the preceding species, and the lamella is consid- 
erably dilated. The hind tibiz are without spurs. 
DOLICHOGASTER. 
Dolichogaster ioptera Wiedemann (brevicornis Wied.) Three specimens, 
Brazil. They agree well with Wiedemann’s description, but the generic charac- 
ters given by Gerstaecker are faulty. In none of these specimens do the branches 
of the forked cell unite before joining the first vein. In one specimen there is a 
marginal cross-vein present. 
EcrypuHus. 
Ectyphus limbatus Williston. This species was described from a female spec- 
imen, which seemed to show all the generic characters of Hctyphus Gerst.; that 
is, the presence of a circlet of spines at the tip of the abdomen and the absence of 
spurs on the hind tibiw. A male specimen which I believe belongs with this 
species, notwithstanding the very marked difference of color, has a spur on the 
hind tibize and a prominent, free hypopygium. ZH. pinguis Gerst., the type of 
the genus, from Africa, has the hypopygium concealed. I can find no other ge- 
neric distinction, however, and the erection of a new genus upon that one character 
would seem of doubtful propriety. The genus is nearest related to Leptomydas, 
which has the hypopygium in some species partly disengaged. Here is another 
character, if more be needed, proving the relationship to the Apioceridze. Baron 
Osten Sacken, notwithstanding all the evidence that has been brought to contro- 
vert his views, stands yet quite alone in placing the Apioceridw among the Asili- 
