305 
which I submitted to him were certainly not iridipennii^. The 
real identity of iridi pennis cannot be settled finally without 
examination of Germar's type : owing to the deficiency of 
Germar's description, and Burmeister's statement that Ger- 
mar's measurement is seriously incorrect, it is possible that 
iridipentn-'< is my f/racllijjes, or my rar/cfps, or the species that 
I regard as nigrinus, Germ. : but as my xene.r agrees best on 
the whole with Germar's description, and is certainly the most 
plentiful in the locality where Germar's types were collected, 
the evidence is certainly in favour of my xene.r being the true 
ir/dijjefnn's. At any rate, it is now clear that Macleay's re- 
descriptio^n of iridipru/ils depicts a species that does not exist. 
L. firacUipes, Blackb. This species is abundantly distinct 
from sene-r, Blackb, but it is, as stated above, not certain that 
it may not be the true iridipefi nis, Gern^. Burmeister's ir/(/i- 
jiennis is, I think, certainly not r/rari/ipf^s, as the basal joint 
of the hind tarsi of the latter is in both sexes a trifle shorter 
than the second joint. Compared with iridrpentns, Germ. 
(sene-r, Blackb.), this species is very similarly coloured, ex- 
cept that the hairs fringing the pronotum laterally are much 
darker ("dark brown," however, would characterise them bet- 
ter than '"black," the word I used in the original description), 
and the iridescence of the surface is less pronounced ; the 
tarsi are less robust in botli sexes ; the clypeus is notably less 
produced in both sexes and less evidently tridentate (male) 
or sinuate (female), although there is some variability in this 
respect, some females of both having the clypeus not very 
far from evenly truncate : the propygidium is very differently 
sculptured, having the hind part in both sexes more strongly 
punctulate and impressed witli two more or less distinct longi- 
tudinal foveae (these, in some examples, arched so as to meet 
at both ends and form a ring), between which the surface is 
more or less gibbous, and the front part abruptly devoid of 
punctures and highly nitid [in iridipennis (sener, mihi) the 
propygidium is in front opaque, with fine, very close punctu- 
ration, which becomes continuously stronger and less close 
hindward, and its surface is even]. In the male of gracilijies 
the middle part of the basal two ventral segments is occupied 
by a very dense tuft of erect, soft, whitish hairs, which is 
wanting in its ally. 
L. simillimus, Mad. In the Macleay Museum two speci- 
mens (one of them presumably the type) are pinned into the 
label bearing this name. Unfortunately, their sex cannot be 
confidently determined, as they have both lost their front 
tarsi, but, judging by the form of the abdomen, I t-ake them 
to be males, and T think thev are males of ahnornird/s, Macl. 
