1 22 HEREA; EUMBNOGASTER. By Dr. M. Drattdt. 
76. Genus: Herea Wkr. 
The differences from the preceding genus are to be found in the abdomen being suddenly expanded 
behind the rather considerable strangulation, and exhibiting lateral tubercles at the base. On the hindwings 
the discocellar is very short, the subcostal and first radial vein are on a joint pedicle, all the rest as in 
S yntrichura. 
meta- H. metaxanthus Wkr. (19 f). The body is black; beginning from the 4th ring, the abdomen is orange- 
xanthus. yellow with a black median stripe; anal hairing and lateral lines on the penultimate ring black. Wings hyaline 
with fine black veins and margins; the proximal margin of the forewing and costal part of the hindwing more 
grey. Expanse of wings: 28 mm. Amazon (Para). 
prittwitzi. H. prittwitzi Moschl. (= xanthogaster Druce) (19 f). This small species has a black body with 
an orange-yellow venter and lateral stripes on the abdomen; the palpi are anteriorly whitish, of the same colour 
the middle of the anal hairing underneath. French Guiana, Bolivia. 
ruficeps. H. ruficeps Wkr. (= collaris H.-Schaff.) (19 f) is easily recognized by the orange-brown head and 
collar, the rest of the body being black; the orange colouring may be extended to the prothorax and the base 
of the shoulder-covers. Tips of antennae, forehead and the first ventral segments are white. In the $ the 
black discal spot on the forewing is usually more developed. Distributed from Guiana to the Amazon. 
77. Genus: Kumeiiogaster H.-Schaff. 
Most of the species of this genus greatly resemble Pseudosphex from which, however, they are imme¬ 
diately distinguishable by the well developed neuration of the hindwings. They are characterized by their 
long-haired palpi, roughly and long-haired thorax and legs. The first abdominal ring exhibits lateral tubercles, 
followed by a great strangulation; the last segments have lateral hair-tufts. On the forewings the lower radial 
is present and rises, with the middle radial, from the lower cell-angle, while on the hindwings it is absent; the 
two median veins and the middle radial rise separately, the subcostal and first radial from the upper cell-angle. 
noiabilis. E. notabilis Wkr. (19 f) is easily recognized by the broad, brown proximal and distal margins of the 
faintly yellowish hyaline wings, the costal margin being striped red or orange, and between the transverse 
vein and apex there are scant black and red scales interspersed. The body is anteriorly blackish-brown, 
striped and spotted yellow, the abdomen red, posteriorly more brown, the strangulated rings black, in the 
caurensis. middle yellowish-white. From Guiana to the Amazon (Para). -— v. caurensis Klages from Venezuela differs 
but slightly by somewhat more pronounced yellow hair on the collar and shoulder-covers, white spots on the 
anterior and posterior hips, as well asat the extremest end of the anterior femora; the yellowish-white spots 
on the first abdominal rings are silvery white. 
pseudopoly- E. pseudopolybia Schrottky. Head black and yellow, antennae black, forehead metallic blue, palpi 
bia - with dark yellow hair. The black thorax, with a blue lustre, is marked yellow. Legs black, hips and tarsi yellow 
haired and scaled. Abdomen black, with a blue lustre, the 4 first rings with yellow bands, on the ventral side 
much broader and more extensive. Wings yellowish hyaline with dark brown veins and margins. Expanse 
of wings: 20 mm. Paraguay. 
pseudosphe- E. pseudosphecia Hmps. (19 g) has, like the following, scarlet antennae, but a reddish-brown abdomen, 
da- the 3rd segment exhibiting a whitish band. The anterior body is black, marked yellow, the forehead white. 
The costal-marginal half of the forewing is greatly darkened by brown scales. From the Amazon (Para; Teffe). 
affinis. E. affinis Eothsch. differs from pseudosphecia by its white forehead, light brown thorax, dark red-brown 
metathorax and base of abdomen; the other abdominal rings are black, not red-brown; the costal part of the 
forewing is dusted more scarlet. Venezuela. 
nigricauda. E. nigricauda Dogn. Head black, forehead white, vertex, collar, and palpi yellow; shaft of antennae 
scarlet, at the base yellow. Thorax marked black and yellow; the first 4 abdominal rings are ochreous-yellow, 
the following ones black. Underneath the 3rd and 4th rings are white, the 3 last ones black, the others yellow. 
Hips white, legs yellow with black ankles. Wings yellowish hyaline, in the costal half darker yellow; fringes 
and proximal margin above fine black, below yellow. Expanse of wings: 28 mm. French Guiana. 
