1238 
GAEA. By B. Zukowsky. 
fraxini. 
comes. 
emphytifor- 
mis. 
soliluda. 
arizonensis. 
palmi. 
The pupation also takes place in these passages near the bark, of which a very thin cuticle remains. After a 
three weeks pupal stage the imago emerges in June, July. 
P. fraxini Lugger (177 g). Head black, face dingy whitish. Palpi dull orange mixed with black hairs. 
Collar red in front, yellow behind. Antennae reddish. Thorax blackish, edged with yellow laterally and be¬ 
hind. Abdomen black with posterior yellow segmental margins, the 4 last segments may occasionally be quite 
yellow, darker orange on the sides. Forewing yellowish brown, transparent at the base, where it is now and 
then spotted red, golden yellow beneath. Hindwing transparent, margin and veins yellowish brown, yellowish 
beneath. 25—35 mm. Montana, Dakota, Minnesota. Larvae in ashes or lilac, like the syringae. 
P. comes Heinr. Antennae above black, nut-brown inside, rather densely scaled yellow outwards, 
basal joint whitish yellow. Palpi black, yellowish white above. Head black, collar yellow above, white and 
black laterally. Thorax black, yellow laterally below, patagia feebly yellow, a yellow triangular spot on each 
side of the metathorax. Forewing transparent, costa black with little orange, discoidal vein orange, the veins 
black with little orange, distal area orange, striped black along the veins, fringe black. Hindwing transparent, 
veins black, costa orange, especially beneath, fringe black. Abdomen black, the segments 2, 3, 5, 6 and 7 with 
a narrow yellow band, of which only the fourth extends also beneath. Anal tuft black and yellow. Legs bluish 
black, anterior coxae laterally yellow, the insides of the tibiae and tarsi with white and yellow scales, the spurs 
of the hind tibiae white. The $ has only 4 yellow abdominal bands, the anal tuft above quite yellow, laterally 
black. 16—19 mm. Brush Corral. Arizona. Lai’va in wood-galls on white oak. 
7. Genus: Gaea Beut. 
Palpi rather short, stretched, scarcely rising, thickly covered with short hair, the last third bare. Male 
antennae not very long pectinated, female antennae not pectinated. Hind tibiae above with short hair. Fore¬ 
wing with 11 veins, 7 and 8 stalked. Hindwing little rounded, almost triangular, cross-vein very oblique, vein 2 
from the cell, 4 and 5 from the angle of the cell. Tongue stunted. Abdomen cylindrical with a smooth straight 
anal tuft. Type: G. solituda Hy. Edw. 
G. emphytiformis Wkr. (176 g). head in front whitish. Palpi and collar orange. Thorax purple 
brown with a yellow shoulder-spot, abdomen blackish brown with a yellow ring on each segment. Anal tuft 
black with few yellow hairs. Lags red with yellow traces, femora black, tibiae with black stripes. Wings 
purple copper-coloured. Forewing yellow, partly red in the disc, interrupted by the discal spot. Hindwing 
slightly mixed with red, transparent near the base. $: head in front dingy white, palpi and collar orange. 
Antennae dull orange with blackish tips. Abdomen behind with yellow bands on the 2nd, 4th and 6th segments 
and traces on the 5th segment ; the 4th extends down to the under surface, anal tuft orange, black beneath 
and laterally. Legs orange, femora blackish. Forewing purple brown with a red spot in the cell and a few 
streaks of the same colour above the discal spot between the veins, some red being also at the base of the 
inner margin. Hindwing purple brown, transparent from the base to the middle, red at the inner margin, 
especially towards the base and at the costa. Under surface dusted reddish. $ 21 mm, $ 18 mm. United 
States; habitat not mentioned. 
G. solituda Hy. Edw. (176 g). Head and thorax brownish, with yellow lateral stripes. Collar, face and 
palpi dull yellow. Antennae dingy brown, orange in the middle. Forelegs and middle legs yellow and orange. 
Hindlegs orange with a broad yellow margin at the tibiae. Abdomen brownish with 6 broad pale yellow orange 
bands, the 4th extending around the abdomen. Anal tuft black, yellow in the middle. Forewing dark brown 
with a red and yellow shadow from the base along the inner margin, another shadow above it to the cell, the 
discal mark remains dark, the distal area is lighter again, though the veins remain dark here. Hindwing trans¬ 
parent at the base, the distal parts of the wing are yellow and orange with dark veins, all the fringes brown. 
All the wings beneath brighter yellow and orange with dark veins. 28 mm, $ 32 mm. Texas and Kansas. 
G. arizonensis Beut. Forewing yellowish orange red, brownish between the veins, all the veins dark 
brown, discal mark dark brown, edged with reddish orange. Hindwing transparent, veins brown, distal margin 
reddish orange, fringe brown; forewing beneath with still more extensive orange. Head black, palpi yellow. 
Antennae reddish orange, brownish towards the ends. Abdomen brownish black with a broad yellow band on 
the posterior margin of each segment, except the 4th. the posterior 3 bands broader than the anterior ones. 
Anal tuft lemon-coloured. AJ1 the segments beneath with yellow bands. Forelegs yellow, joints and femora 
black, the other legs are absent. 25 mm. Only 1 $. Pinal Mts., Arizona. 
G. palmi B. & McD. ($ = [Synanthedon] palmii Beut.). <$: antennae strongly serrated. Palpi rather 
long and pointed, white beneath, the 3rd joint reddish. Head white mixed with ochreous. Thorax black 
with a pale ochreous central stripe and two lateral stripes. Abdomen greyish ochreous, anal tuft black, late¬ 
rally ochreous. Legs dingy ochreous, coxae blackish. Forewing smoke-coloured with an orange shade, a thick 
black discal spot follows upon an orange spot which may also occur splash like beyond the discal spot, fringe 
dark, hindwing orange at the base, broadly dusted smoky outside, a narrow discal spot and the fringe dark. 
