229 
Genus Megarhinus. 
prothoracic projection, below this densely covered with silvery scales; 
metanotum brown, naked. Halteres ochre-yellow. Abdomen about 
twice the length of, but narrower than the thorax, flat, deep metallic blue, 
except the first segment, the latter green with a yellow patch on each 
side; fifth segment showing some golden-yellow laterally, sixth and 
eighth segments ornamented with a strong tuft of golden hair laterally, 
the seventh with black tufts; all the segments slightly bordered with 
golden hairs laterally; the first to third and fifth to seventh segments 
golden-yellow beneath with a metallic blue longitudinal stripe down the 
centre, fourth entirely metallic blue, and the terminal one brilliant pale 
green. Coxae clothed with silvery scales. Femora and tibiae metallic 
violet, the former golden-yellow beneath. In the intermediate and fore 
legs (the hind legs wanting below the tibiae in the specimen before me), 
the first joint of the tarsi white except at the base, and the second also 
except at the apex; the rest metallic violet. Wings longer than the 
abdomen, with a pale brownish tint anteriorly and along the fifth longi¬ 
tudinal vein, veins pale brown, cilia pale and short; weak reflections. 
Auxiliary vein joining the costa almost opposite but somewhat beyond 
the posterior branch of the fifth longitudinal; sub-costal cross-vein 
distinct, situated about mid-way between the origin of the anterior 
branch of the fifth longitudinal vein and the origin of the second 
longitudinal; fork of -the latter very small, the tips of the branches 
slightly bent anteriorly ; supernumerary cross-vein equal in length to the 
middle cross-vein; posterior cross-vein more than twice the length of the 
latter, rather sinuose, tip of the anterior branch of the fifth longitudinal 
vein joining the margin opposite the middle of the second posterior cell, 
a very prominent wing-fold running close to the posterior side of the fifth 
longitudinal for the whole of its length, and another on the anterior side 
in the anal cell. 
Habitat .—Port Denison, Queensland (Masters). 
Observations .—The above is taken from a single 6 specimen whose 
hind legs are lost beyond the tibiae, and whose thorax is'perhaps partly 
denuded. There is also a $ specimen in the Macleay collection taken by 
Mr. Masters about twenty years ago near Sydney; it seems to me to 
belong to this species, but it is too abraded to satisfactorily decide. I do 
not know of any other captures of specimens of this genus in Australia, 
and I have never yet had the fortune to see a living example of these 
evidently scarce and extremely magnificent insects.” 
Note. —Specimens of this species have been received from 
Dr. Bancroft from Queensland, but in too damaged a condition 
to make use of. Three other specimens, two ^’s and one 9 ? 
have also been received from Mackay, Queensland, from Mr. Gr. 
Turner, all in poor condition, but enabling me to complete 
Skuse’s description of the hind legs. 
The legs are, I find, ornamented as follows : the fore legs 
