Sphaeniscus and Euphranta — HARDY 
81 
the basal brown spot on the costal margin 
occupies only the subcostal cell and does not 
extend through cell R 2 to vein R 3 as it does 
in maxima. The thorax is predominantly yel- 
low, not yellow-brown, and the paler mark- 
ings of the thorax, described by Hering as 
"hellgelben,” are whitish, just faintly yel- 
lowed. The front is yellow in skinneri , with a 
faint brownish discoloration in the middle; 
not with a velvety black spot as in maxima. 
The whitish median stripe on the mesonotum 
ends before the suture in skinneri , in maxima 
it extends beyond the suture, halfway be- 
tween the presutural and the scapular bristles. 
The first abdominal tergum is rufous medially 
in skinneri and is all black in maxima. In the 
female of skinneri the dark brown to black 
stripes which extend down the sides of the 
dorsum converge on tergum five and extend 
as a median line to the apex of the sixth 
tergum. In maxima the side stripes extend to 
the middle of the fifth tergum and the sixth 
is entirely yellow-brown. 
Dr. Hering in correspondence, has supplied 
the following corrections to his description 
of maxima. He says that the second antennal 
segment, not the third, is dark brown, not 
black. He also says that the oviscapt in 
maxima is longer than the remainder of the 
abdomen, not equal to it (120:100). In 
skinneri the basal portion of the ovipositor is 
shorter than the abdomen (60:80). 
MALE 
Head: Almost all yellow with a tinge of 
brownish in the middle of the front. The 
front is broadest at the lower portion and is 
slightly narrowed near the ocelli, at the broad- 
est point it is equal in width to or slightly 
broader than one eye. Three pairs of inferior 
fronto-orbital and one pair of superior fronto- 
orbital bristles are present. Ocellar bristles are 
lacking; the post vertical bristles are small and 
converged (Fig. 3 d). The face is entirely clear 
yellow and slightly concave as seen in lateral 
view. The first antennal segment is small and 
inconspicuous and is largely hidden by the 
forward development of the head which cov- 
ers the bases of the antennae. The second 
antennal segment is almost one-half as long 
as the third. The first and second segments 
are densely covered with short, black bristles 
on the dorsal surface (Fig. $e). The basal 
segments are yellow to rufous. The third seg- 
ment is entirely yellow, is densely pubescent 
and obtusely pointed at apex (Fig. 3e). The 
arista is rather thickly plumose. The palpi are 
all yellow, are rather thickly covered with 
short, black bristles, especially on the ventral 
portion, and are just slightly larger than the 
third antennal segment. The occiput is all 
yellow. 
Thorax: Yellow except for four large pol- 
ished black spots on the mesonotum, except 
for the shining black metanotum, except for 
a large brown spot on each hypopleuron and 
for a narrow longitudinal stripe which extends 
through the middle portion of each meso- 
pleuron across the top edge of the proepi- 
meron. The black markings of the mesonotum 
are arranged as follows: covering the entire 
area, on each side, from the hind margin of 
the humerus to the suture; with a pair of 
broad postsutural submedian black vittae ex- 
tending to the scutellum and extending lat- 
erally to the bases of the inner supraalar 
bristles. Prescutellar bristles are lacking. Three 
pairs of supraalar and one pair of dorsocentral 
bristles are present. The dorsocentrals are 
situated in front of a line drawn between the 
inner supraalars but are much closer to the 
inner than to the anterior supraalars (Fig. 
3 c). The humeral bristles are well-developed. 
There is also a strong bristle on the upper 
portion of each sternopleuron. Four strong 
scutellar bristles are present. 
Legs: Almost entirely rufous, the front tibia 
is slightly discolored with brown. 
Wings: Predominantly hyaline, with a very 
faintly brownish tinge at the base; the stigma 
is yellow-brown, and a faint tinge of brown 
extends over the forking of the radial sector. 
A brown vitta extends transversely over the 
wing from the median portion of cell R 2 over 
the r-m crossvein and about halfway through 
