255 



sutural marking encroaches upon it, so that there appears a 

 blackish spot obscurely separated from the acute black tip. 

 The medio-basal elevation of the pronotum is always con- 

 spicuous, and has the same curious broken-off appearance as 

 in cucullata and semipunctata. The length varies from 4 to 

 9 mm. It was recorded originally from New Holland ; speci- 

 mens in the Museum are from South Australia (Monarto, 

 Oodnadatta, and Ooldea) and Western Australia (Cue and 

 Geraldton). 



Emenadia tricolor, Gerst. 



Two females before me agree well with the original 

 description of this species, except that the femora and tibiae 

 are entirely reddish, and that on one of them the hind coxae 

 are blackish, the irregular pale fascia covers about half the 

 length of the elytra, and the interruptions at suture and 

 sides are but slight; the second joint of the hind tarsi is 

 longer than wide, and less conspicuously three-sided than on 

 most species of the genus. Another female agrees well with 

 Waterhouse's description of the colour of the male, except 

 that less of the legs are reddish ; still another female has 

 more of the legs red, and the whole of the base (narrowly) 

 and sides of prothorax dark red. All these specimens (as 

 were also those of Waterhouse's) are from the Swan River; 

 the type was from New Holland. Waterhouse considered the 

 differences in colour to be sexual, but the specimens before 

 me indicate that they are individual, and I believe he was 

 quite right in associating the specimens he described with 

 tricolor, although Blackburn (who had never seen a specimen 

 of tricolor) thought to the contrary. 



Three other females also appear to belong to the species, 

 but are considerably smaller (4^-5| mm.), one of them has 

 the head entirely red, with the black parts of the elytra 

 consisting of a narrow basal edging, and an obscure stripe 

 from the middle to the apex ; the second specimen has the 

 upper part of the head black, the basal edging of the elytra 

 conspicuous, but the lateral markings reduced to an infuscate 

 median blotch ; the third specimen has the upper part of the 

 head black, and the elytral markings reduced to a narrow 

 basal edging, narrowly continued along the sides to the basal 

 third ; the first specimen has the hind coxae entirely pale, 

 the second and third have them partly dark. 



Emenadia maculicollis, Boh. 



There are seven specimens before me (five from Sydney, 

 one from New South Wales, and one from Victoria) that 

 appear to belong to this species ; of these three are females 

 and have the medio-basal lobe of the pronotum lightly but 



