Structure of some Australian Lepidoptera Homoneura. 597 
The mandibles are easily seen in microscopical preparations, 
but I have not obtained any preparations showing satis- 
factorily the structure of the maxillae and labium. In 
Fig. 4 I have sketched the mandibles, the five-jointed 
maxillary palpi, and the very short three-jointed labial 
palpi, which bear some terminal bristles on the third 
segment. The antennae consist of short joints bearing 
2 
cane se 
NS 
Fra. 4.—Sabatinca calliplaca. Mandibles, 
labial palpi, and one maxillary palpus in situ. 
(Semi-diagrammatic. ) 
numerous bristles, and are closely similar to those of 
Micropteryx aruncella. In S. aurella the joints are longer, 
but otherwise their structure is the same. These antennae 
are primitive, inasmuch as there is no differentiation 
between dorsal and ventral surfaces, the bristles occurring 
in complete whorls. There are no fine cilia, and there 
appears to be no differentiation between the sexes. The 
posterior tibiae have two pairs of spurs, but the middle 
tibiae are without spurs; both are finely spinose, and in 
both some of the spines are apical. 
mr oe) 
Fic. 5.—a, Sabatinca calliplaca. Antennal segments, 
b, Sabatinca aurella. Antennal segments. 
Sabatinca must be referred to the Micropterygidae 
(sensu stricto). It is more primitive than Micropteryx in 
the branching of R1 of the fore-wing, and of Sc of the 
hind-wing, but is specialised in the fusion of RI of the 
hind-wing with Sc2 and partial or complete loss of its 
basal part. 
I have a second species of Sabatinca from Queensland, 
which appears to have exactly the same neuration as 
calliplaca, It is— 
