DAVID I. CARTWRIGHT 
Key to Victorian species of Chimarra Stephens 
Larvae 
1. Frontoclypeal notch V-shaped (Fig. 8, \); projection on inner margin of 
basal half of both mandibles (Fig. 9, \) .... C. monticola Kimmins 
— Frontoclypeal notch with flattened base (Fig. 10, \); projection on inner 
margin of basal half of left mandible only (Fig. 11, \) . 
. C. australica (Ulmer) 
Pupae 
1. Hook plates on segment 3 and 4 with 4-6 large teeth (Fig. 13) . 
. C. monticola Kimmins 
— Hook plates on segments 3 and 4 with 2 or 3 large teeth (Fig. 15) 
. C. australica (Ulmer) 
Adult females 
1. Ninth sternite with 2 triangular sclerites (Fig. 17) . 
..C*. monticola Kimmins 
— Ninth sternite with 2 sub-trapezoidal sclerites (Fig. 18) . 
. ... .C. australica (Ulmer) 
Adult males 
1. Apices of parameres forming upturned hook on each side of penis 
(Mosely & Kimmins 1953, fig. 274; Neboiss 1986: 105) . 
.. C. australica (Ulmer) 
— Apices of parameres triangular, not hooked (Mosely & Kimmins 1953, 
fig. 275; Neboiss 1986: 105) . C. monticola Kimmins 
posterior wings with forks 2, 3 and 5 present; 
discoidal cell present in both wings. Female 
abdomen terminates bluntly, segments 9 and 10 
short. 
Chimarra monticola Kimmins 
Figs 1-9, 12, 13, 17 
Chimarra monticola Kimmins in Mosely & 
Kimmins 1953: 402-403, fig. 275. 
Diagnosis 
Final instar lan'a. (Figs 1-9.) Length 8.3-11.7 
mm(x= 10.1, n= 12). Head length about 1.5x 
width (Fig. 6). Frontoclypeal notch V-shaped 
Left margin of frontoclypeus projecting farther 
than right (Fig. 8). Both mandibles with small 
projection on inner margin mesially (Fig. 9). 
Pupa. (Figs 12,13.) Length 6.3-8.2 mm (x> 7.2 
mm, n = 3). Mandibles with short, bifid sub- 
apical process (Fig. 12), slightly less conspicuous 
than in C. australica. Anterior hook plates on 
abdominal segment 3 usually with 4 teeth, seg¬ 
ment 4 with 5 or 6 teeth (Fig. 13 ); generally with 
more teeth on each hook plate than on corres¬ 
ponding plate on C. australica. 
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Fig$ 19-22. 19, distribution of Chimarra monticola Kimmins in Victoria. 20, distribution of Chimarra (lus¬ 
tra ita( L lmer) in Victoria. 2 ], distribution of Chimarra in the Yarra River system 50 km east of Melbourne:* = 
C. monticola Kimmins recorded, o = C. australica (Ulmer) recorded, o = both Chimarra species recorded 11 
seasonal abundance of instars of Chimarra australica (Ulmer) in the Yarra River. Peninsula Road, 1979-80: 
sea e- 100 individuals for open histograms, 420 individuals for cross-hatched histogram; N = number of speci¬ 
mens collected on each sampling trip; P = prepupae and pupae recorded; A = adults collected; all Chimarfl 
instars 1 and 2 have been included in the figure although a small proportion may have been C. monticola. 
