438 
CHARLES T. BRUES 
Pleuræ with a series of several bristles above the fore coxa, a macro - 
chæta above the spiracle and several along the edge of the mesonotnm. 
Scutellum evenly arcuate behind, three times as wide as long; with 
two marginal bristles and a fine bristly hair to the side of each bristle. 
Abdomen opaque, bare ; second segment elongated, without any bristles 
laterally. Ovipositor pale yellow, clothed with long bristly hairs. Legs 
long, the posterior femora only slightly broadened. Anterior tibiæ with 
a series of four equidistant bristles, each as long as the thickness of 
the tibia, along its outer side ; middle tibiæ each with a pair of macro- 
chætæ at the base ; hind tibiæ bare except that the pubescence is a 
little more bristly along the outer edge at the base. Wings hyaline, 
faintly yellowish ; distinctly infuscated at their tips ; veins brown, costal 
vein slightly extending beyond the middle of the wing, its bristles, very 
fine, short and closely placed; first vein ending at four-fifths the dis¬ 
tance from the humeral cross-vein to the tip of the third vein; third 
vein lying very close to the first to near its furcation which is opposite 
the tip of the first vein; fourth vein evenly curved, almost straight, 
ending as close to the wing tip as the fifth which is nearly straight ; 
6 th vein straight ; seventh obsolete. Halteres pale yellow. 
One female from San Bernardino, Paraguay, February or March, 
1906 (Babarczy). 
This species approaches the West Indian Ph. divaricata Aldrich, 
but seems to be quite distinct. As previously noted it is related to 
Ph. paraguayana, but lacks the bristles upon the hind tibiæ and the 
wings have a much shorter costal vein and less strongly curved fourth vein. 
Hypocera Lioy. 
There is one undescribed species from San Bernardino which falls 
in the group hitherto known from only Europe and Nort America, in 
which the vertex is semicircularly elevated with a sharp rim above. 
I had thought at first that there were two species, so greatly do the 
sexes differ in the color and form of the antennæ, but as I can dis¬ 
cover no characters aside from such as are probably only sexual diffe¬ 
rences, believe that the specimens before me represent but a single 
species. The following are the differences : 
Male. Antennæ black; third joint much elongated, sharply pointed 
and thickly clothed with piceous pubescence ; palpi black. 
Female. Antennæ orange-yellow; third joint short-ovate, nearly 
bare ; palpi orange-yellow. 
