1226 
SYNANTHEDON. By B. Zukowsky. 
arizonae. 
morula. 
novaroensis. 
brunneri. 
I a eta. 
hemigymna. 
rubrofascia. 
and below. Thorax black with two broad lateral stripes, golden yellow behind. Coxae of forelegs white, middle 
and hindlegs violettish black with white rings and spurs. Forewing transparent, costa, the broad apical margin 
and the broad discal vein black, fringe dull black. Hindwing transparent, veins, fringe black, whitish at the 
base. Abdomen black, the 2nd, 3rd, 4th, 6th and 7th segments narrowly yellow. Anal tuft steel-blue, laterally 
white. The 1st and 2nd segments beneath with white scales, a narrow band on the 4th and 5th, and lateral 
spots on the 7th. 14 15 mm. $: antennae black, the tips more rarely white. Palpi golden yellow above, pale 
yellow below. The middle and hind legs golden yellow with violettish black markings. Forewing like that of 
the but marked yellow in the apical area, the discal mark outside also yellow. Hindwing like that of the 8- 
yellowish at the base. Abdomen violettish black with narrow yellow rings on all the segments, except on the 
5 th and 7 th which are quite yellow. Beneath intensely scaled yellow. Anal tuft golden yellow with a black 
base and black sides. 12—21 mm. Arizona; August. 
S. arizonae Bent. (177 b). Head black, orbita white. Palpi yellow. Collar edged with yellow. Antennae 
black. Thorax black with a yellow streak on each side and a strong posterior transverse streak, beneath like¬ 
wise yellow on each side. Abdomen black with narrow yellow bands on the 1st, 2nd, 3rd, 5th and 6th segments, 
the 4th very broadly yellow. Anal tuft yellow, laterally black. Legs yellow, tibiae with black bands. Fore wing 
transparent, the costal margin and fringe blackish, the inner margin, cross-vein and distal margin beautifully 
golden orange, veins black. The under surface with still more orange. Hindwing transparent with a narrow 
margin, partly orange at the apex, fringe brown. 23 mm. Arizona, Texas. Only are known so far. the 8S 
and the early stages are unknown. 
S. morula Hy. Edw. (177 b). Head and antennae black. Palpi dingy white. Thorax brownish black 
with a very narrow white lateral line. Abdomen deep brownish black with a narrow dingy white band on the 
2nd, 4th. and the two last segments. Anal tuft black, impurely white beneath. Legs black, spurs, and tarsi 
beneath white. Forewing, veins and cross-vein broadly black, the transparent places slightly scaled white, 
white beneath, the rest black. Hindwing transparent with a narrow black margin. 20 mm. Texas. 
S. novaroensis Hy. Edw. (177 c). Head, palpi and collar beautifully reddish orange, antennae black. 
Thorax black, patagia and a round spot at the anal margin beautifully reddish orange, thorax beneath quite 
orange. Legs orange with black bands. Forewing transparent with bluish black margins and a strong cross¬ 
vein. beneath orange at, the base. Hindwing transparent with narrow bluish black margins. 30—35 mm. This 
pretty species has been found so far only in California and Washington. 
S. brunneri Basok, is very closely allied with S. novaroensis (177 c), but distinguished by the somewhat 
more slender shape, the blue ground-colour and less red on the abdomen. Palpi reddish orange with a broad 
black exterior streak. Face dark metallic blue. Head black, antennae bluish black. Thorax bluish black, 
speckled red in front, patagia dark reddish orange. Forewing transparent in both sexes with broad purple blue 
margins and a broad transverse streak at the end of the cell, a narrow orange costal margin, the apical and 
especially the costal margins beneath strewn with reddish orange. Hindwing transparent with narrow blackish 
blue margins and veins, the costal margin here also red. especially beneath. Abdomen dark metallic blue with 
distinct red transverse streaks on the 2nd and 4th segments and sometimes with red traces on the other seg¬ 
ments. Anal tuft black in the middle, brick-red laterally and below. Legs dark blue with red bands and spots, 
tarsi blue. 24—27 mm. The larva lives in Pinus pondorosa. Camas, Montana. 
S. laeta Wkr. (176 e). Deep black. Palpi strong. Antennae plain, almost twice as long as the thorax, 
with black tips, before them almost to the middle white. Thorax with white lateral stripes, pectus white. iVb- 
domen red with black dorsal spots occupying the whole surface towards the base, each of them containing a 
white spot. Legs white, femora and tibial tips bluish black. Wings transparent with short black fringes. Fore¬ 
wing with a coppery black distal area and a black streak across to the end of the discal vein. 20—22 mm. 
S. hemigymna sp. n. (176 e). Antennae terminating pointed, scarcely thickened before the ends, black. 
Head and thorax black, the anterior edge dusted dull yellow'. Abdomen delicate and narrow, thinnest in the 
middle, the 1st, 2nd 3rd segments black, the 4th laterally yellow, the following segments greyish yellow. Anal 
tuft strong, bluish violet above in the middle, the margins and especially the sides and below' deep reddish orange, 
which colour is slightly continued beneath on the 6th and 5th segments. The rest of the under surface whitish, 
the 3rd segment darker. Femora black, tibiae bright yellow, the posterior ones black before the end, tarsi black. 
All the wings brownish yellow hyaline, the costal margin intensely brownish, the forewing with a brown discal 
vein, brown narrow margins and veins, a black base, slightly yellow behind it. A very beautiful species, apparently 
allied with 8. laeta Wkr. 29 mm. Brazil. Itatiaya. 1 flying in the sunshine on a forest-glade. Type: Coll. 
Marten. 
S. rubrofascia Hy. Edw. (177 c). Head, palpi, antennae and thorax black, with a metallic gloss. Ab¬ 
domen black, the 4th and 5th segments quite red. Anal tuft black. Legs black, tarsi dingy white. Forewing 
transparent, the costal and inner margins and the cross-vein narrowly, the distal margin very broadly black. 
The cross-vein is remarkably long, widening at its termination into the costa. Hindwing transparent with very 
narrow" purple brow T n margins. 20 mm. Only known from Georgia. 
