230 
REPORT ON ZOOLOGY, MDCCCXLII : 
(where the wings and antennae show many variations, the wings are : 
a. Constricted at the base, as in macrocerus, Burm., with the antennae 
longer than the wings, and a new species in which they are scarcely so 
long as the wings : h. Simple, as in MacLeayanus senex, Burm., ^-punc- 
tatus, Burm., Jlavipes, Leach and others : c. The hind wings dilated and 
more or less repand at the inner margin, as in versicolor, with the an- 
tennae longer; and surinamensis, F., and others, with the antennae of the 
same length, or shorter than the wings.) Finally, the genus Puer {niger, 
Borkh.), differing by a very wide net-work on the wings. 
However much the profoundness of this division may be acknowledged, 
yet I cannot withhold my objection, that a part, which like the male 
anal-nipper, is differently formed in almost every species, should be used 
primarily for founding genera, the very nomenclature of which is also, 
for the most part, objectionable. 
A new Mantispa, apicalis, from Rhodes, has been described by Loew 
(Germ. Zeitschr. iv. p. 433). A new genus, Psychopsis, Newman (En- 
tomol. p. 415), has the following diagnosis : — “ Generi Chrysopa affinis, 
at alarum nervuris aliter dispositis.” The species, Ps. mimica, from 
Adelaide, in South Australia, is certainly very distinctly represented on 
the title-page, yet not so that the generic characters can be made out 
from it. 
Lastly, I may mention here an insect, described by Westwood as 
inhabiting the Spongilla Jluviatilis (Trans. Ent. Soc. iii. p. 105, t. 8). 
It may be best compared with the larva of Hemerohius ; the antennas 
are long and setaceous, four bristles project from the mouth as far as 
the antennae, approximating in pairs, one stronger and one finer, they 
represent mandibles and maxillae ; the palpi, upper lip, and tongue are 
wanting. The first seven segments of the abdomen have, on the 
under side, each a pair of jointed flat appendages, which are evidently 
branchiae, as two vessels are easily observed in each of them. He is 
in doubt to which order this insect may belong ; he is most inclined 
to suppose it a neuropterous larva ; however, there is a possibility that 
it may be the larva of Acentropus. From its very near alliance to the 
larva of Hemerohius, I have no doubt that it belongs to an insect of this 
family ; the chief distinctions of the species are, indeed, conditional on 
their abode in the water. Similar organs of respiration are also found 
in Sialis, but this larva stands much nearer Hemerohius, and so I may 
conjecture, that it is that of Sisyra, Burm. Westwood, on the sup- 
position that it is a perfect insect, has given it the name of Branchio- 
toma spongillce. (See a paper by Grube, in the Arch. Naturgesch. 
1843, i. p. 331, t. 10.) 
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