56 SYNOPSIS OF MIDASID 4. 
Genus APIOCERA, Westw. 
(Lond. and Edinb. Phil. Mag. June, 1835.) 
The head is transverse, the antennze (see plate 14, fig. 6*) shorter 
than the head; the first joint thick, the second minute, both clothed 
with long rigid setee; the third, rather small, pear-shaped ; the 
fourth, minute and stylate ; the proboscis is exserted, as long as the 
head, terminated by two large lips, and furnished with two broad 
spatulated palpi. The thorax is oblong, the scutellum produced, 
the abdomen conical, smallest in the male, but terminated in that 
sex by a thick exserted appendage. The legs are moderately long 
and slender, the hind thighs small, the hind tibiz bicalearated, and 
the tarsi bipulvillate. The wing-veins are arranged nearly as in 
Midas; the fourth longitudinal vein is however straight, and is 
considerably elongated before it becomes fureate, the upper branch 
of this fureation not emitting the short spur-like appendiculated 
vein found in most of the preceding insects, but wanting in those 
from Egypt. The discoidal cell beyond the middle of ‘the wing is 
dilated at its apex, and emits a vein which runs to the hind margin, 
so that in conjunction with the minute transverse vein emitted by 
the adjacent cell, as in most species of Midas, (but which cell is 
greatly reduced in size,) there are four cells along the hind margin 
of the wing. The sides of the thorax, scutellum, and legs are 
armed with long black bristles. 
Species L. (XLVIII.)—Apiocera merens, Westw. n. sp. (Pl. 14, fig. 6). Obscure nigra, facie 
corporeque subtus pilis cinereo-albis valde obsitis, thorace vitta angusta media aliisque 
tribus utrinque in medio disci abbreviatis cinereo-albis, abdominis segmentis 2, 3, et 4 
lateribus et maculis duabus triangularibus ad marginem posticum magnitudine decrescen- 
tibus, Stoque maculis duabus basalibus, cinereo-albis, alis hyalinis, venis nigris 9. Long. 
corp. lin. 10. Expans. alar. lin. 14. 
Habitat in Nova Hollandia. Mus. Newman. 
Species I]. (XLIX.)—Apiocera asilica, Westw. (Lond. and Edinb. Phil. Mag. June 1835.) 
Nigra, vertice et thoracis lateribus piceis, palpis albidis, alarum venis nigris 9. Long. 
corp. lin. 103. Expans. alar. Jin. 17. 
Habitat in Nova Hollandia. Mus. nostr. 
Species III. (L.)— Apiocera fuscicollis, Westw. (Op. cit.) Obscure fusca, thorace 
cinereo subyittato, palpis albidis, alarum venis internis pallidis, corpore subtus albido 
villoso. Expans. alar. lin. 17. 
Habitat in Nova Hollandia? Mus. Hope. 
Obs.—I am by no means satisfied of the specific diversity of 
these three insects; my specimen of A. asilica beg in a very 
mutilated state. 
Obs.—Mydas bilineata, Fabr., Ent. Syst. 4, p. 253, a native of 
New Zealand, described from the Banksian Cabinet, and now in 
the collection of the Linnzean Society, isa large species of Thereva. 
The orchidaceous plant figured in Plate 14, is the Australian 
Thelymitra Ixiodes, Swartz ; all the insects on this plate being 
natives of New Holland. x 
