13 
Two Osmylinae and one Psocid were 
also captured. 
HYM ENOPTKRA.—Over one hundred 
specimens taken. 
One typical specimen of Genus Ophion 
is the most noteworthy of the lenneu- 
mous, and is the second only that I have 
taken in Tasmania (apparently only one 
species of this genus has been described 
from Australia). Many Bracons, five speci¬ 
mens of an Evan id, Ruby wasps, a few 
common Thynnids or flower-wasps, seve¬ 
ral bees, and various families of Fos- 
sorial wasps, formed the remainder of the 
captures. 
Mr. Rowland Turner records taking 
specimens of Apheletoma tasmanica at 
Englehnwk Xe(k on dead eucalyptus logs 
in which old beetle holes were numerous, 
and, although of smaller size, the wasp 
bears considerable resemblance to ants of 
the Genus Myrmccia (the common jack- 
ant, or jack-jumper, is the one evidently 
referred to). The account goes on to 
state Halt when alarmed the wasp often 
picks up a fragment of dead stick or leaf, 
which it carries in its mandibles, thus 
increasing the resemblance to the ant. I 
took a specimen of this genus larger than 
the Jack-ant, and which also shows 
characteristic differences from tasmanen- 
sis, the only species recorded from Tas¬ 
mania. This will probably prove a new 
species. 
As the wasp has no popular name, and 
is of general interest, the name .laek- 
wasp might be adopted for the genus 
Aphelotoma, after its model, the Jack- 
ant. 
Two ruby-wasps were obtained. The 
name "ruby-wasp” applied to Tasmanian 
specimens, is certainly a misnomer, for 
all l have yet taken are green, and ap¬ 
parently no rod, or ruby, specimens occur 
in the island. 
COLBOl’T'ERA. 22 specimens, belong¬ 
ing to 9 families, were taken. Beetles 
afford but poor material to the hunter of 
new species. They have received so 
much attention that there are apparently 
nothing but minute species left to be 
found in the island, together with very 
occasional prizes of large species to the 
most diligent hard worker. 
LEPIDOPTERA.—The same remark 
can be made about butterflies and moths 
as that passed about beetles. Only one 
specimen was taken, belonging to the 
Hepialidne, or Swifts, more usually 
known in Australia as wood-moths. 
DIPTERiA.—-103 specimens of flies were 
taken, amongst which there were many 
excellent specimens. Six specimens of a 
Robber-fly known as Brachyrrhopala 
nitidus, which hitherto 1 have found very 
scarce, formed the largest catch, both in 
size and qualify. A new Mock-bee (fam¬ 
ily Syrphidae) formed perhaps the most 
interesting species taken. II is an ex¬ 
cellent imitation of one of our various 
red and black bees, such as the common 
Kxoneura bicolor. I have often seen the 
bee enter beetle holes in fallen logs. The 
fly was taken when about to enter such 
a hole, so it appears at first sight as if 
the mock-hep had adapted the colouration 
for protective purposes, Tasmania is full 
of these apparent cases of mimicry, but 
owing to so little field investigation hav¬ 
ing been done to solve the problems of 
mimicry, and apparent mimicry, it is 
impossible to state definitely which are 
true cases of mimicry. The family 
Syrphidae contains numerous species of 
mock-bees and mock-wasps that do not 
mitnic any particular wasp or bee. but in 
this case the mimic is remarkable even 
to the slightly yellowish tinge of the 
wi ngs. 
A species of parasitic fly of the rare 
family Hippoboseidae (parasitic on birds, 
and animals) was taken on the wing, a 
rare occurrence for this family. The- 
species is not determined. 
REMITTER A. -Five specimens, belong¬ 
ing to two families, were taken. 
GEOLOGICAL NOTES 
By W. H. Clemes, B.A., B.Sc. 
The geology of Eaglehawk Neck is ex¬ 
tremely sinlple, and can be very briefly 
described 1 . The main features of interest 
are connected with the pernio-carboni¬ 
ferous mudstones, which are well deve¬ 
loped along the coast. They present the 
usual bold vertical faces, reaching in 
parts to fully 1,000ft. in height. The 
bedding planes are nearly horizontal, or 
dip slightly to the south-east. The rock 
appears to have suffered very little de¬ 
formation, though numerous faults are 
noticeable. The regular jointing lias led 
to the formation of picturesque sculp¬ 
turing, comparable to some ancient castle 
structure. The lower beds are the usual 
