OF CERAM, CELEBES, TERNATE, AND GILOLO. 51 
_ Female. Length 4 lines. Rufo-ferrugmous; the head black, the abdo- 
men with three black fascize, very smooth and ahuing s ; the mandibles, 
clypeus, and antenne ferruginous. (PI. I. fig. 5. 9.) 
Hab. Celebes (Tondano). 
This very beautiful insect may probably be a very large, highly coloured 
form of M. insularis, described in a previous paper; but not having any 
intermediate in size, I have thought it advisable to describe it as a distinct 
species. 
Fam, THYNNIDA, Erich. 
Gen. THYNNTS. 
1. Tuynnus atratus. T. niger, punctulatus ; alis anticis fusco-nigris, 
apice hyalinis, posticis hyalinis, basi late fusco-nigris. 
Female. Length 12 lines. Black and closely punctured ; the head and 
thorax slightly shining, the thorax very shining, and not so strongly 
and closely punctured as the thorax; the anterior margin of the 
clypeus widely and slightly emarginate. The wings very dark brown, 
shining, and with their apical margins, and the posterior margin of 
the hind wings hyaline; the legs black with short cimereous pubes- 
cence within, 
Hab. Gilolo. 
This fine species of Thynnus is of the same form, and about the same 
size, as Guérin’s T. Shuckardi ; it is the second species that has to my know- 
ledge been captured in the Eastern Archipelago; the first species was 
described in the paper descriptive of the insects of Bachian, &c., published 
in the supplement to the fifth volume of the ‘ Proceedings.’ 
2. Tuynnus (AGRIoMYIA) vAGANS. T. niger, capite thoraceque 
flavo variegatus, abdominis segmentis maculis duabus flavis; alis sub- 
hyalinis. 
Male. Length 61 lines. Black, the head and thorax subopake, the 
abdomen shining; the mandibles, clypeus and a V-shaped mark above 
yellow ; the base of the clypeus and an anchor-shaped mark in the 
middle black. Thorax, the collar, posterior margin of the prothorax, 
a spot on the tegule, two beneath the wings, a minute one on the 
~ mesothorax, three on the scutellum, and one on each side of the meta- 
thorax yellow; the anterior tibiz and the intermediate pair in front 
ferruginous ; the wings subhyaline, the nervures black. The abdomen 
has an oblong yellow spot at the sides of all the segments except the 
two apical ones. ; 
Female. Length'4 lines. Apterous; black, the head small, transverse 
in front, much narrowed behind, with a deep longitudinal sulcation on 
each side close to the margin of the eyes. The thorax narrow and 
oblong. Abdomen oblong-ovate, very large, with four deep transverse 
grooves on the second segment. (Pl. I. fig. 1 3, 29.) 
Hab. Gilolo. 
a: 
