VICTORIAN SPECIES OF CHIMARRA 
17 
TAXONOMY 
Chimarra Stephens 
Figs 1-18 
anterior margin. Spinules about 1 pm apart (Fig. 
5). Dorsal surface of forecoxa with a seta 
mesially, sclerotized process bearing a terminal 
seta distally (Fig. 2). 
Final instar larva (Figs 1-11) 
Pupa (Figs 12-16) 
Diagnosis. (Modified after Ross 1944: 48-51, 
Lepneva 1970: 421-422, Wiggins 1977: 312- 
313.) Length 8-12 mm (x = 9.7 mm, n = 24). 
Larvae campodeiform. Head and pronotum 
sclerotized, orange-brown in colour. Mesono- 
tum and metanotum not sclerotized. Abdomen 
white or yellow, abdominal gilts absent (Fig. 1). 
Labrum membranous, brushlike, anterior mar¬ 
gin broader than posterior margin. Frontocly- 
peal apotome narrow, constricted in posterior 
half. Anterior margin of frontoclypeal apotome 
with prominent asymmetrical notch (Figs 6, 8, 
10). Ventral surface of head with seta number 18 
located on anterior third of head capsule, trans¬ 
verse sulcus or ridge adjacent to occipital margin 
(Fig. 7). Thoracic legs simple, tarsus approxi¬ 
mately same length as tibia, tarsal claw short and 
stout (Figs 2, 3,4). Tarsus of foreleg with ventral 
row of setae, each seta with fringe of spinules on 
Diagnosis. (Modified after Lepneva 1970: 421— 
422.) Length 5.6-8.2 mm (x = 6.7 mm, n = 5). 
Labrum broadly rounded. Mandibles dark red¬ 
dish-brown, curved near base, apices pointed 
with prominent bifid subapical tooth-like pro¬ 
cess (Figs 12, 14). Tibial spurs 1:4:4. Anterior 
hook plates present on abdominal segments 3-8, 
posterior hook plates present on segment 5 only 
(Figs 13, 15). Abdomen without gills or lateral 
fringe of setae. Apex of abdomen wit hout paired 
anal processes (Fig. 16). 
Female (Figs 17, 18) 
Diagnosis. (Modified after Mosely & Kimmins 
1953, Kimmins 1957, Schmid 1982.) Ocelli pre¬ 
sent. Maxillary palpi five- segmented, segment 5 
long and flexible. Spurs 1:4:4. Anterior wings 
with R1 simple, apical forks 1,2,3 and 5 present; 
Figs 12-18. Pupae and females of Chimarra Stephens. 12, 13, Chimarra monticola Kimmins pupa. 12, man¬ 
dibles and labrum, dorsal view, scale = 0.2 mm. 13, hook plates, dorsal view, scale = 0.05 mm. 14-16, Chimarra 
australica (Ulmer) pupa. 14, mandibles and labrum, dorsal view, scale = 0.2 mm. 15, hook plates, dorsal view, 
scale = 0.05 mm. 16, tip of abdomen, dorsal view, scale = 0.1 mm. 17, Chimarra monticola Kimmins, female 
genitalia, ventral view, scale = 0.1 mm. 18, Chimarra australica (Ulmer), female genitalia, ventral view, scale = 
0.1 mm. 
