279 



the outer one on each side near the base) are entirely reddish, 

 but the interspaces between the first and fifth are blackish, or 

 at least deeply infuscated. This form varies towards rufi- 

 pennis on the pale side, and towards haemorrhoidalis on the 

 dark side ; some of the connecting forms have the black in 

 irregular blotches and partly occupying even the costae. A 

 typical male of this variety was taken on Bruni Island in cop. 

 with a typical female of haemorrhoidalis. Another specimen 

 of it was taken on Flinders Island in company with one of 

 haemorrhoidalis, and another of rufipennis. 



A A. Prothorax not entirely black. 



Var. marginatus, Guer. This variety was described as 

 the type of the genus (at least it was the first form referred 

 to Pseudolyeus, and the only one figured by Guerin), and 

 represents another very variable section of the species, differ- 

 ing from the first by the prothorax being of two colours 

 instead of uniformly black. It was described from Port Jack- 

 son, and the specimens before me were taken from Dorrigo 

 (New South Wales) to the Victorian Alps. In commenting 

 upon it Blackburn (39) said it was "a wider, more depressed, 

 and more fragile-looking species than either of the preceding 

 (haemorrhoidalis and luctuosus), but the only specimen in his 

 collection bearing his name-label marginatus ( 4 °) is structurally 

 like a rather thin form of haemorrhoidalis , and the original 

 figure represents a thin form. Structurally specimens of this 

 variety agree exactly with those of other varieties, and the 

 slight variations in the shape of the prothorax are exactly 

 paralleled in those varieties ; but the basal joint of the hind 

 tarsi appears to be invariably pale at the base. 



1. The typical form of the variety has from the middle of 

 the base of the pronotum a wide (often subtriangular) black 

 space, extending to the apex ; there is also a black space (some- 

 times in the form of an isolated spot) on each side ; there is 

 thus left a very irregular flavous, or reddish, vitta on each 

 side, extending from the base to the apex. On the elytra 

 the outer margins, apex, and suture (to a variable extent, I 

 have not seen it pale throughout) are also pale. Some speci- 

 mens of this form have elytra approaching those of 

 haemorrhoidalis . 



2. Two females are rather wider than usual, and with the 

 reddish parts of the elytra confined to the tips (but slightly 

 advanced along the elevated parts) and shoulders. 



(39)L.c, p. 86. 



(40) There was, however, an unusually wide female of Form 2 of 

 the variety in his collection, but without a label of any kind. 



