1869.] 263 
at the apex, the latter piceoua ; 2nd, the knee on the nnder-sido blackish or 
piceous, a ring a little way from the base, a second in the middle, and a third 
about its own width from the apex ; 3rd, the rings placed as in the 2nd pair, 
the 1st ring generally continued to the base as a hne on the undcr-sidc ; 
upper-side with one or two pale spots. Tarsi piceous, 2nd joint yellowish. 
Claws brown. 
Abdomen — Underneath black, with a broad green central streak. 
? paler than the <? . Length 2| — 3 linos. 
This insect is very nearly allied to P. tilicG and duhius, but it is 
most likely to be mistaken for the former. Its general darker appear- 
ance may serve to distinguish it from that insect and from P. duhiics 
by its unicolorous head and black base of the 1st joint of the antenna?. 
A few examples have been taken on palings at Bl ackheath, in 
Bexley Eoad, and round Lewisham, between the end of July and 
end of August. 
EaMILT 6. — LlTOSOMID^. 
Genus 1. — Litosoma. 
Species 6a. — Litosoma obsolettjs. 
Oethotyltjs obsoletus, Pict. and Mey., Pieb., Europ. Hem., 289, 4*. 
Elongate, somewhat parallel. Greyish or yellowish-green, thickly 
clothed with short depressed white hairs, intermixed with longer, erect 
black ones. Cells of the membrane pale golden yeUow. 
Head — Posterior margin keeled. AntenncB pale yellow, 3rd and 4th joints brownish. 
Eyes pitchy-black. Rostrum pale yellow, apex piceous. 
Thorax — Pronotum, callosities prominent, the transverse channel behind them deep. 
Ehjtra — Membrane very pale fuscous ; cell nerves yellow. Cells pale golden 
yellow. Legs pale greenish-yellow. Thighs clothed with short, depressed, 
white hairs. TibicB pale yellowish. Tarsi yellowish, 4th joint and claws brown. 
4.b(Zomeri— Underneath fuscous-green. Length 2^ lines. 
This insect may be distinguished from L. concolor, to which it is 
jlosely related, by its larger size and didler appearance {concolor being 
jf a deep, somewhat bluish-green colour, and having a much darker 
membrane'), and its unicolorous cell nerves. 
"We have only seen a single example which we can refer with any 
certainty to this species. It was taken in Bexley Eoad, Kent, on the 
3th August, and was probably beaten out of sallow. 
Family 12. — Psallid^. 
Genus 3. — Psallus. 
Species 8a. — Psallus Whitei, n. sp. 
Eed or reddish-yellow, clothed with short, depressed, yellow and 
black hairs intermixed, the latter sub-erect. Elytra with a distinct 
trapeziform blackish patch. 
