166 
M. Peterson 
and C. cicatricosus (ASI: S, 47-54; 9, 47-53) by its 
more colourful and strongly defined vestiture, and 
further differs from C. albisparsus by having more 
adventitious corbellar setae (9-15 vs 2-10) and 
from C. cicatricosus by the following: details of 
ovipositor structure (see Thompson, 1968:440); 
median rostral carina parallel to frons vs arched; 
posterior dorsal spines set less caudad (PSI: 52-62 
vs 59-66) on elytra, in both sexes; strongly vs 
weakly sexually dimorphic PSI. Catasarcus inilitaris 
appears to have a more northern distribution than 
these three species and all four taxa are apparently 
allopatric (Figure 3). 
It has been suggested (anonymous referee's 
comments) that C. militaris may be related to C. 
intermedins Pascoe, 1870, with which it shares 
similarly placed dorsal elytral spines (the two 
species have the highest ASI values among 
described species in the genus) and multisetose 
corbels. Catasarcus militaris may be differentiated 
from C. intermedius (prothorax length to width 
ratio, 10 : 16.3-17.9; PSI: 9 63.7-70.4, 6 58.0-63.0; 
IPSB/TW: 9 30.4-35.7, 6 28.6-32.7) as follows: 
prothorax narrower; posterior dorsal spines set less 
Figure 3 Collection localities for five Western 
Australian Catasarcus species mentioned in 
text. 
caudad on elytra (non-overlapping ranges of PSI 
for 9, minimal overlap for <J); IPSB/TW higher 
(non-overlapping ranges for both sexes; apparently 
due to a more gracile general form); less numerous 
corbellar setae; elytral pattern more colourful, 
bolder and longitudinally aligned (vs white/pearly 
scales only, less densely distributed and forming 
an indistinct oblique white/pale line (from post- 
humeral spine to just anterior of anterior dorsal 
spine) on each elytron); apparently allopatric 
distributions (Figure 3). 
I collected the three northern C. militaris types, at 
1345-1445 hrs (Western Standard Time), on the 
topmost leaves (1-2.5 metres above ground) of 
mature non-flowering Grevillea catxdelabroides 
Gardner growing on the swale and crest of a red 
sandridge. The sandridge was well vegetated with 
Grevillea, Hakea, Banksia, Eucalyptus (mallee), 
Calothamnus and Plectrachne species. Conditions 
were hot (circa 40° C) with no wind, and the 
weevils were active, though evidence of feeding 
was not found. They were found sympatric, but 
not syntopic, with only one other Catasarcus 
species, C. carbo Pascoe, 1870 (northern form). The 
Carrollgouda Well specimens of C. militaris are 
without associated ecological data. However, C. 
carbo (northern form) has also been recorded from 
the latter locality, suggesting a possible ecological/ 
distributional association between these two taxa. 
Catasarcus carbo, a quadrispinate species, is 
distinguished from C. militaris by its larger size, 
squamose corbels, rugose pronotal disc, weak to 
obsolete postocular lobes, more convex eyes and 
anterior dorsal spines set less caudad on elytra 
(ASI: 43-54) in both sexes, with the "northern 
form" also possessing less distinct, more sparsely 
distributed setae and an elytral pattern of metallic 
golden scale patches (covered in bright yellow 
powdery exudate in live specimens) forming an 
oblique (not longitudinal) marking/tract (from 
post-humeral spine to anterior dorsal spine) on 
each elytron. 
Etymology 
The specific epithet, Latin for military, alludes to 
the vestiture pattern and coloration of this 
attractive taxon, which approximates that of many 
early (18th and 19th century) military uniforms. 
Additional Material Examined 
C. albisparsus: Australia: Western Australia: 1 9, 
Burma Road Reserve, 30 km E. of Walkaway, 4 
September 1987, R.P. McMillan (WAM); 1 9, 
Watheroo Nat. Park (30°12'S, 115°50'E), 16-17 May 
1981, B. Hanich and T.F. Houston 384 a-b (WAM). 
C. cicatricosus: Australia: Western Australia: 1 9, 
16 km NW. of Eneabba (29°49’S, 115°16’E), 9-12 
September 1987, T.F. Houston 652 (WAM); 6 2,3 
