2 PROCEEDINGS OF THE NATIONAL MUSEUM VOL.71 



Genus AMORPHOCOCCUS Green 



In 1919 Prof. G. F. Ferris transferred to this genus a species 

 which he believed represented Haskell's Sphxierococcus leptospermi. 

 As has been pointed out in discussing the true leptospermi in this 

 paper, Ferris's conclusions were based on a misidentification, and in 

 consequence the insect discussed by him remains without a nam^e. 

 The available material representing it is very unsatisfactory, largely 

 through injury by parasites, and the description given below is not 

 entirely adequate. Following Professor Ferris, the species is left 

 tentatively in the genus Amorphococcus, although there is a serious 

 question as to the correctness of such placing, and it seems probable 

 that the species will be found to be much more nearly related to the 

 o-enus Lecaniodiaspis. 



AMORPHOCOCCUS LEPTOSPERMI, new species 



Plate 1, figs. 1-10 



References.— Fvogg2.ti, N. S. Wales Dept. Agr., Sci. Bull. 19, 1921, 

 p. 11 (as Sphaerococcus leptospermi Maskell) .—Ferns, Can. Ent., 

 vol. 50, 1919, p. 250 (as Amorphococcus leptospermi (Maskell)). 



Adult female.— Fovming a swollen twig gall as described and 

 figured by Froggatt; exact shape and size of body uncertain, prob- 

 ably about 2.5 mm. long to 3 mm. long and stout elliptical; derm 

 membranous to somewhat chitinized; antennae reduced to short 

 2-segmented stubs (Ferris says 3 to 4 segments), bearing several 

 stout setae at tip of apical one; legs wanting; beak stout conical, 

 1-segmented; spiracles small, with bar enlarged at inner end, with 

 a cluster of quinquelocular disk pores at opening, this continued as a 

 loose band to another cluster at body margin, this last normally ac- 

 companied by two stout spiracular spines in the case of the anterior 

 spisacles, one of these large, about 28/. long, one small, about lOp. 

 long, these wanting with the posterior pair of spiracles; pores o± 

 posterior spiracular band not cleft to form two diverging arms; 

 body, so far as can be determined, without definitely differentiated 

 marginal setae; with some small setae dorsally and ventrally, no 

 certSn details of number, size, and arrangement determinable from 

 the material examined ; with some larger setae at posterior apex of 

 body, including one pair of definitely differentiated apical ones; 

 dorsum with small, but not minute, 8-shaped pores, with elongate 

 tubular ducts and with minute circular simple pores scattered, ap- 

 parently rather uniformly, but nowhere thickly, over the dorsal 

 surface; with multilocular disk pores, normally with 10 loculi, m an 

 uncertain number of transverse bands or rows in the posterior ventral 

 abdominal area; with two longitudinal rows of tiny, irregularly 

 rounded, cribriform plates, including from six to seven in each row; 



