1232 
SYNANTHEDON. By B. Zukowsky. 
semiprae- 
stans. 
behrensi. 
autremonti. 
scythropa. 
iineosphecia. 
dimorpha. 
with red traces. Abdomen bronze-coloured, the 4th and the two last segments red above, the sides of the ab¬ 
domen striped red. Anal tuft red. bluish black above on each side. Femora bronze-coloured, tibiae red, bronze 
at the ends, tarsi bronze, slightly red on one side. Forewing with broad margins and a broad cross-vein metallic 
green, so that few transparent places are left, inner margin broadly red from the base to the cross-vein, beneath 
the red is still more extensive. Hindwing transparent, red along the inner margin, distal margin brownish bronze. 
$: forewing quite metallic green or blue. Inner margin reddish orange, thus lighter than in the <$, sometimes 
a narrow transparent streak in the cell and two or three between the veins in the distal area. Hindwing before 
the blackish brown fringe partly broad orange, cross-vein the same, so that only about half remains transparent. 
Anal tuft quite red. 15—22 mm. Nevada. Utah, Colorado. Unfortunately there is neither anything known 
of the life-liistory of this beautiful species. — var. semipraestans Cock. The orange colouring corresponds to 
praestans Hy. Echo ., but the colour of the legs and the shape are of fragariae. The colour of the abdomen (blackish 
bronze, the 4th segment quite red, the last two segments narrowly red) resembles again more praestans than fraga¬ 
riae 24 mm. Florissant, Colorado, 2300 m; June. It flies very swiftly over dry sterile soil. Cockerell is unde¬ 
cided whether semipraestans is a variation, of fragariae or even perhaps a distinct species. 
S„ behrensi Hy. Edw. (= elda Hy. Ediv., helianthi Hy. Ediv.) (178 a). <$: head black, face white with 
a violet reflection. Palpi and collar orange. Antennae black. Thorax metallic bluish or greenish black wit 1 1 
a red stripe on the patagia and red spots beneath. Legs red, femora black, tarsi red and black. Abdomen 
metallic greenish or bluish black, the last 4 segments red, and red stripes along the sides of the first 3 segments, 
with red bands beneath. Anal tuft red, laterally bluish or greenish black. Forewing metallic bluish or greenish 
black with a red stripe at the inner margin, dull brownish black beneath; basal area, costal and inner margins 
red. Hindwing transparent, distal margin violettish brown, the inner margin and base red. head in front 
with a tuft of red hair. Abdomen: the 3 last segments above, all beneath and the anal tuft red. Hindwing quite 
scarlet, distal margin and fringe brown. 18—22 mm. This excellent species has so far only been found in 
California. 
S. autremonti Le Cerf (176 f). C- face blackish blue. Palpi black, yellowish white outside on the 2nd 
joint. Antennae black. Collar and thorax blackish green, tegulae with traces of red, pectus beneath spotted 
red. Abdomen blackish green with miniate sides of the 2nd, 3rd and 4th segments, anal tuft red. Beneath 
blackish blue from the base to the 3rd segment, the 4th grey, the others whitish yellow. Anterior hips whitish 
yellow, spotted red outside, femora blackish blue, tibiae black, slightly mixed with yellow, middle and posterior 
hips yellowish white, middle and posterior femora blackish blue, tibiae of the same colour, terminated by whitish 
yellow hairs, spurs white, tarsi of all the legs blackish blue, curled white. Forewing greenish black, broadly 
whitish yellow beneath from the base to beyond the middle along the costa. Hindwing blackish bronze, a trilobate 
hyaline spot at the base, occupying almost half the wing. Fringes of all the wings greyish black. $: similar to 
C, but with an orange red abdomen beneath and a black anal tuft. Forewing beneath not yellowish white but 
orange as extensively as in the <$. The hyaline part of the hindwing broader. 15 mm. Brazil, Minas Geraes; 
$ from Araraquara. 
S. scythropa sp. n. (176 f) is very closely allied to autremonti Le Cerf , but it lias all the parts black ex¬ 
cept the thoracal disc, the anterior pectoral sides and the two first palpal joints beneath, which are yellow. 
Wings like those of autremonti. 14 mm. Brazil, Itat-iaya. 1 $ leg. Prof. Seitz; type: Senckenberg Museum. 
S. tineospliecia sp. n. (180 h) is very closely allied to S. autremonti, infuscata and scythropa which, to¬ 
gether with a few more, would be best comprised under the genus Trichocerata Hmps .; tineospliecia might even 
be entitled to a separate genus, since the antennae of the are longer than usual (as long as the foreudngs) and 
exhibit a thickened area of appressed hair-scales in the centre above. Antennae, head, thorax and abdomen 
blackish brown, somewhat glossy, the antennae behind the thickening white for some distance, the tips again 
black. Legs lighter, the coxae silvery, abdomen beneath silvery white. Forewing rounded at the apex, densely 
scaled blackish brown. Hindwing: the costal region and a broad apical area semihyaline, scaled lighter greyish 
black, the rest purely hyaline, margins thin, fringe long, blackish brown. Under surface somewhat lighter. 
The 4 $ evidently belonging to it has the same scheme and colouring on the wings, very long pointed palpi semi- 
circularly bent upward, the first two joints orange, the tips brown. Antennae blackish brown. Abdomen blackish 
brown, glossy, two parallel dorsal lines in a beautiful opalescent purple red, anal tuft brown. Abdomen beneath 
and anal tuft reddish orange. Middle legs blackish brown, coxae yellowish white, anterior and posterior legs 
absent. 14-15 mm. Brazil. Itaituba, types in the Berlin Zool. Museum. 
S. dimorpha Le Cerf (176 g). face black, white before the eyes. Palpi black, strewn with yellow 
scales. Antennae reddish yellow, black at the base and tips. Collar black, glossy. Thorax and abdomen blackish 
blue. Anal tuft blackish blue, laterally with a few yellow scales, ventral side black, segments 4—7 broadly 
margined with yellow, the last segment black at the base. Anterior hips blackish blue, partly covered with pale 
yellow scales, the femora and tibiae are likewise blackish blue, terminated by yellowish, middle tibiae partly. 
