Coccidse from Australia. 451 



hairs. Posterior extremity of body with a pair of long 

 caudal seta3, not springing from the anal plates. 



Having only a single species with which to deal, it is 

 difficult and inadvisable to define the generic characters very 

 minutely. 



I have still further difficulty in determining the proper 

 systematic position of the new genus. It has some characters 

 (stigmatic spines, anal cleft, &c.) which associate it with the 

 Lecaniinaa, others which suggest Dactylopiinas, but not such 

 •as would warrant its inclusion in the intermediate family 

 Hemicoccinre, where the larva? are Dactylopiinid and the 

 adults Lecaniinid. I think that the Lecanoid characters 

 have here the predominance, the principal differences being 

 the non-valvular anal plates and the marginal position of the 

 caudal setas. 



The name of the genus is taken from that of the locality 

 in which the specimens were collected. 



Birchippia anomala, sp. n. (PI. XI. figs. 3-3 d.) 



Test of adult female corneous, semitransparent, fulvous, 

 more or less obscured by a fragmentary coating of brownish 

 waxy matter. The dark body of the dead insect can be 

 distinguished through the test at the anterior extremity. 

 Broadly oval to oblong-oval according to position. Strongly 

 convex above, smooth. A small circular opening at the 

 posterior extremity. 



Length 3-4 millim. ; breadth 2 millim. 



Male puparium whitish, opaque. Rather broadly oval, 

 with a circular valve-like opening at posterior extremity. 

 Moderately convex above, more so above the abdominal area. 

 Surface marked by numerous transverse depressed lines and 

 usually four longitudinal furrows ; the area between the two 

 median furrows standing up as a rounded ridge. The general 

 character of the puparium is strongly suggestive of that of a 

 male Lecaniodiaspid. 



Length T25 millim. ; breadth 0*75 millim. 



Adult female (fig. 3) shrivelling to anterior part of test, 

 subcircular (after maceration). Posterior extremity cleft. 

 Mentum monomerous. Antenna (fig. 3 a) atrophied, varying 

 in development in different individuals. In some examples a 

 distinct basal and a compound terminal joint only can be 

 distinguished. In others at least three distinct joints are 

 present, the median as long as the other two combined. The 

 terminal joint has two or more imperfect divisions and bears 

 six or seven stout bristles at its extremity. On the margin, 



