Lea — On Australian Coleoptera 293 



Ilah. New »S()u11i Wales: Sydney (Dr. E. W. Ferguson). Type (inii(iue), 

 I. 12005. 



About tlie size of T. macleaiji, and with somewhat simihir markings, except 

 that each shoukler is black, but the lateral gutters of the prothorax are much 

 nearer the nmrgins. The pubescence is almost iuvisible from above, and even 

 from the sides could be easily overlooked. 



THALLIS TRICOLOR sp. nov. 



Plate iv, fig. 9. 



Black; an orange-yellow spot on forehead, prothorax orange-yellow, a large 

 subovate spot on each side of middle, touching the base at its narrower end ; elytra 

 flavous with black markings, the tips orange-yellow; prosternum (except for 

 some infuscations about coxae) and two apical segments orange-yellow, the three 

 basal segments more or less infuscated or black. Upper-surface glabrous. 



Head with not very dense and rather small but sharply defined punctures, 

 becoming dense on clypeus. Antennae with third joint about once and one-half 

 the length of the adjacent ones, ninth and tenth each at apex twice as wide as 

 the median length, eleventh about as long as wide. Apical joint of each palpus 

 subconical. Prothorax not twice as Avide as long, widest close to apex, obtusely 

 notched on each side of apex, lateral striae extremely close to margins ; punctures 

 small and not very dense, but mostly sharply defined. Elytra distinctly wider 

 than prothorax, parallel-sided to near apex; with regular rows of punctures of 

 moderate size, becoming small posteriorly ; interstices with scarcely visible punc- 

 tures. Prosternum in parts impunctate ; intercoxal process rather narrow, pro- 

 duced to an obtuse point posteriorly. Coxal lines of abdomen not distinct beyond 

 middle of the basal segment. Front femora ridged on under-surface and dentate 

 in male, simple in female. Length, 6-7 mm. 



Hah. New South Wales: Dorrigo (H. J. Carter, W. Heron, and R. J. 

 Tillyard). Type, I. 11773. 



An elongate, beautiful species, with the three colours of Episcaphula picti- 

 pennis and E. nigronotata, but with the palpi and prosternum of a ThaUis. On 

 several specimens the legs (except for the claws), antennae, and scutellum are 

 entirely deep black, but on others they are more or less reddish in parts; the 

 black parts of the elytra are the margins and epipleurae (except about apex), a 

 large spot about scutellum, and a spot on each shoulder, a submedian fascia 

 (usually narrowly interrupted at the suture), and three spots (sometimes con- 

 lU'cted) at the apical third; of these the median spot is larger than the others, 

 and has a fairly Avide sutural extension almost to the apex. On several specimens 

 parts of the head are obliquely strigose, or with punctures exhibiting a tendency 

 to become confluent. 



