108 ILLUSTRATIONS OF SOME SPECIES OF 
and immaculate; antenne, black and slender; the abdomen is 
glossy black, depressed, and slightly punctured, with gray pubescence; 
the second, third, and fourth segments have on each side a small, 
slender, whitish lunule, diminishing in size. The second and third 
segments have also a whitish lunule on each side beneath, and the 
fourth and fifth a whitish dot. The abdomen is entire at its extre- 
mity, not pointed, but on each side, near the tip, is a small pointed, 
and another clavate setose exserted appendage, with a thin pencil of 
recurved hairs (fig. 5 a). The fore legs are red, and the four hind 
ones pitchy-red; the middle femora with a black streak behind, 
and the hind femora black. The fore wings are yellowish-smoky, 
with black veins; and the hind wings hyaline. 
The female has the head, thorax, and base of the first segment 
of the abdomen black; and very much punctured; the abdomen is 
shining and setose at the sides; the extremity of the first seg- 
ment, the whole of the second, the basal half of the third, and the 
extreme base of the fourth segments, as well as the apical appendage, 
are red; the remainder of the abdomen is black. The second 
segment has a carinated transverse line at a short distance from 
the hinder margin, the preceding portion being rudely punctured, 
and beyond it the segment is glossy and impunctate. The basal 
half of the third, fourth, and fifth segments are also glossy and 
impunctate, and the apical portion of these segments punctured. 
The antenne are pitchy-red, with the basal joint black; and the 
legs are red. 
THYNNUS (THYNNOIDES) FUMIPENNIS, Westw. 
(Plate 75, fig. 1. ¢ 2. 9) 
& T. subeneo niger luteo-setosus et sublente tenuissime punctatus clypeo fulvo, macula 
mediana alterisque duabus lateralibus obscuris; alis fumosis, pedibus obscure piceo-rufis. 
Long. corp. lin. 8. Expans. alar. lin. 14. 
2 nigra subnitida capite pedibusque fulvis. Long. corp. lin. 5. 
Habitat, Port Philip. In Mus. Saunders et nostr. 
The male of this species is very closely allied to T. obscurus, 
Klug, and T. rufipes, Guer. (from both of which it differs in its 
smaller size), and also to T. rubripes, from which it differs in the 
yellow markings of the clypeus, the colour of the wings and legs, and 
the pilosity of the abdomen, and from Th. labiatus, Klug, it differs 
in the colour of its wings and legs. It is black, with an zneous 
tinge, which seems rather produced by the very short close luteous 
pubescence ; and under a lens it is thickly and finely punctured ; 
