Miscellaneous. 351 
third segment is somewhat constricted. The second segment 
is ornamented by a narrow yellow half-ring dorsally and 
laterally, excluding the oreillettes. The third and fourth 
segments bear on each side a subtrigonal yellow spot, the two 
succeeding segmenfs being unornamented. The seventh 
segment bears at its basal third a yellow semicircle; the 
following segments are unornamented, the seventh and eighth 
of equal length. The ninth segment has a short spine at its 
hinder margin above. The tenth segment is provided dor- 
sally with an acute retroverted horn, sparsely haired and with 
a minute obconic plate attached to its base. This horn is 
equal in height to the length of the tenth segment. There 
are small crenatures on the hinder margins of the last three 
segments. The appendages are black: the superior sub- 
cylindric, approached until their terminal third, where they 
become divaricate; they are slightly curved upwards and 
forwards seen in profile; the apices are obtuse; they are 
sparsely haired and are of the length of the eighth segment. 
The interior appendages are somewhat shorter, conical, bifid 
at the tip, and with a deep conical groove basally, the apex 
pointing outwards; they are much thickened at the base, 
and seen in profile the extremities curve slightly upwards : 
like the superiors, they are slightly hairy. 
The wing-expanse is 384 inches and the length 2 inches 
9 lines. 
The affinities of this species are curious. It has an un- 
doubted affinity to Ceratogomphus in its general facies and 
the abdominal dorsal spine, but the anal appendages ( C. pictus) 
are widely different; no lateral plates occur, as in Cerato- 
gomphus pictus. Again, it approaches Anormogomphus in 
the oreillettes, whilst the Corduliine character of the position 
of the nodus of the upper wings is peculiar. 
The female is unknown, as likewise the exact habitat of 
the described male. I believe, however, it is a Cameroon 
species. One specimen in my own collection. 
MISCELLANEOUS. 
Note on Rhysota Armiti. By Enear A. Suitn. 
In the August number of these ‘ Annals’ some observations 
appeared from the pen of Mr. C. Hedley upon the identity of this 
species with the 2. flyensis of that author. Ifin &. Armiti I have 
redescribed Mr. Hedley’s species (which at present seems very 
doubtful), I must lay the blame either upon his description and 
