122 t''""*' 



spines on the anal lobes ( fig. 4, /) are still larger. The relative sizes of 

 these spines may he perceived by a comparison of the sockets from which 

 they spring (see fig. 4, y, h, i, and J). There is a well-defined chitinised 

 area on the ventral side of the anal lobes (see fig. 4, d). 



Pseudococcus icalJceri Newst. 



I found adult females of this species, sitting exposed on meadow 

 grasses, in rushy fields outside Bournemouth, in the month of August ; 

 and Mr. Donisthorpe has sent me examples of the same insect, taken in 

 a sweeping-net, at Goring, in Jul}'. 



Ripersia tomlini and R. suhtervanea Newst. 



Amongst some Coccidae collected by Mr. Tomlin in Guernsey are 

 many examples of Rijyersia tomlini. Newstead describes this species 

 as having 7-jointed antennae ; but many of the present specimens (in 

 fact, most of them), though fully mature and containing embryos, have 

 six joints only, the reduction being brought about by a partial or com- 

 plete fusion of the 2nd and 3rd joints. Newstead gives Portland as 

 "at present, the only known habitat for this species in Great Britain." 

 I have, however, in my collection, examples from Sandown, Isle of 

 Wight ; from Box Hill, Surrey ; from Bletchingdon, near Oxford ; 

 from Whitsand Bay, Cornwall ; all collected by Mr. Donisthorpe in 

 nests of Lasius niger. 



On reviewing my material of Ripersia, I find that this i-eduction 

 of antennal joints has, in several instances, led to erroneous determina- 

 tion, several gatherings of tomlini having been wrongly determined 

 as suhterranea. The latter species has smaller and proportionately 

 stouter antennae, in which the 3rd joint is approximately equal to 

 the 2nd. In the 6-jointed form of tomlini, the 3rd joint is elon- 

 gated and approximately one and a half times as long as the 2nd. 

 Newstead records " the raised shingle beach at Ingoldisthorpe, near 

 King's L^ain, Norfolk " as the only known locality for this species 

 (subferranea). My collection contains examples from Tenby, Wales, 

 in nest of Lasius alienus ; from Whitsand Bay, in nests of Tetra- 

 ■inorium caespitum and Lasius ni(/er ; from Dartmouth, in nest of 

 Lasius niger; from St. Isay, in nest oi Lasius JI aims ; from Caswell 

 Bay, Glamorganshire ; from Lundy Island, Devon, in nest of Lasius 

 alienus ; and from the Is. of May, near Edinburgh, in nest of Lasius 

 Jiavus. 



