20G 



[ September, 



.A 



antennae, I have not the least hesitation in placing it in this genus. 

 The characters of the genus must, therefore, be extended to include 

 species having eight joints to the antennae ; a very common variation 

 of character in the $ Lecaniidce. 



Lecanopsis foemicaeum, n. sp. 

 ? adult, naked, dusky yellow or reddisli-yellow, with two broad interrupted 

 subdorsal stripes, meeting at the anal dorsal lobes, disappearing 

 on the thoracic segment, but appearing again near the margin 

 in front as two distinct spots, which might easily be mistaken 

 for eyes. Form elongate, narrowed in front from the middle ; 

 eyes very small, nearly black, situate on the margins, anterior 

 of the two spots ; antennae (fig. 1) of eight tapering joints — 

 1st very wide, with a blunt spine at apex beneath ; 2nd as long 

 as the 1st ; the rest in length about equal, all with a few hairs ; 

 8th with several at apex ; rostrum uniarticulate, short, obtuse, 

 furnished at apex with three hairs, and on either side at base 

 with one ; unexpanded filaments very little longer than rostrum ; 

 legs (fig. 2) long and stout, about three times the length of the 



antennae ; femur suddenly pointed at apex, 



and apparently grooved, attached to the groove 



is a delicate connective membrane, which ex- 

 tends to the tibiae ; tarsi short, less than half 



the length of the tibiae, with the faintest trace 



of a groove at apex (fig. 3j ; trochanter with 



one long and one short hair ; digitules to tarsi 



and claw ordinary ; dermis with many circular 



discs surmounted with short, stiff spines; parts 



of the surface rugose ; the rugosities viewed 



dorsally beautifully labyrinthiform — a very 



unusual character. Anal dorsal lobes large, 



angular, each furnished at apex with a delicate 



spine. Anal ring without hairs? (of this I 



cannot be quite certain). Anal cleft deep. 

 Long., 5 — 5§ mm. ; wide, 2 — 2^ mm. 



Hah. : in nest of Formica nigra, at Chesil Beach. Received from 

 Mr. C. W. Dale, April 15th. 



Mr. Dale vpas only able to find two specimens, although, at my 

 suggestion, he searched a second time for them. He remarks — " I 

 have seen similar insects in the nests of F. flava and F congerens 

 before now^, but mistook them for larvae of beetles." Its colour 

 pattern is very like that of Signoretia IuzuIcb, L. Dufour, and it is one 

 of the largest of our British Coccids, and a clearly distinct species. 



May Uth, 1893. 



