o4 
N. longicollis, Blackb. The puncturation of the disc of the 
prothorax in this species (especially in the female) is notably 
closer and stronger than in any other Natalis known to me 
except porcata, Fab. (in which, however, it is still more closely 
punctured). In fact I have some hesitation as to whether in the 
tabulation it ought not to be placed with porcata rather than 
with the species having the disc less closely punctured. It seems 
to be somewhat intermediate. In the male the close sexual 
puncturation begins on the third ventral segment. 
N. inconspicua, Blackb. I am afraid this name must drop, as 
the insect on which it was founded is certainly, I think, only a 
variety of porcata, Fab., with the prothoracic puncturation 
abnormally feeble. I have seen several specimens from Tasmania 
apparently taken in company with typical porcata presenting the 
same peculiarity. In my former tabulation I distinguished 
inconspicua from porcata, Fab. (which is called by its synonym 
“eribicollis, Spin.”), by its being clothed with long erect hairs, 
but this is not a satisfactory distinction, as these hairs are very 
easily rubbed off, and, as a fact, they are present in fresh 
specimens of porcata, although the specimen of that insect before 
me at the time I wrote my former paper on Watalis was without 
them. 
LYMEXYLONID. 
LYMEXYLON. 
L. Adelaide, sp. nov. Piceum, capite prothoraceque rufescenti- 
bus, pedibus sordide testaceis; capite brevi, confertim sub- 
tilius punctulato; prothorace quam latiori ut 5 ad 4 longiori, 
antice vix angustato, profunde canaliculato, crebre subtilius 
(quam JL. australis, Er., minus crebre minus subtiliter) 
punctulato, lateribus leviter arcuatis, angulis posticis sat 
rectis ; elytris confertim subtilissime punctulatis, lineis 4 
subelevatis instructis; abdomine nitido subtiliter minus 
crebre (quam JL. australis, Er., multo minus crebre) punc- 
tulato. Long., 6 1.; lat., 141. 
The principal differences between this species and L. australe, 
Er., are referred to above, this species being larger, more strongly 
and less closely punctulate, with the prothoracic channel much 
stronger, and the shape of the prothorax different. In 
L. australe the sides of that segment (viewed from above) are 
very straight (even tending to be slightly inewrved in front of 
the middle), while in ZL. Adelaide the sides form a continuous 
gentle curve from base to apex. The difference in puncturation 
is quite noticeable on all parts except the elytra, on which how- 
ever, the slightly elevated lines are evidently better defined in 
L. Adelaide, and are four in number, there being no trace of 
more than three on any example that I have seen of Z. australe. 
