\Q^ [February, 
Oreshius castaneiis, n. sp. 
Castaneus, vel rufo-brunneus ; caput antice et metathorax nigra. 
Antennse 25-articulat8e, articulis 3 et 4 seqtialibus, rufo-brunnese ; ar- 
ticulus ultimus apice fuscus. Corpus totum griseo-pilosum. Pedes 
cum coxis trochanteribusque rufo-brunnei. Mas incognitus. 
$ Long, (terebra exclusa) 2-3| lin. 
Two specimens, differing much in size, were taken by me under 
stones at tbe top of Garbbavel or " Grayvel," near Loch Rannocb, in 
July last. The species may be suspected of being a parasite of Nebria, 
Patrohus, or OtiorliyncTius maurus. These are about the only insects 
occurring at that elevation (some 3,500 ft.) capable of maintaining such 
a creature. No spider of sufficient size was to be found. 
Note. — At page 191 of this vol. I stated inadvertently that 
Eorster had changed Gravenhorst's Brachypterus into Pterocormus 
without assigning a reason. He does assign a reason, and a good one. 
Kugellan's genus Brachypterus (Goleopt.) has the priority by several 
years, and Gravenhorst's name cannot stand. 
A MONOGRAPH OF THE BEITISH PSOCID^. 
BY B. m'lACHLAN, F.L.S. 
{Continued from P. 181.) 
Genus Clothilla, Westwood (1841). 
Termes p. Linne ; Lepinotus, Hey den (?) ; Paradoxides and Paradoxenus 
(Coleopterd) Motschulsky. 
Tarsi 3-jointed ; femora only slightly dilated. Head sub-cordate ; 
eyes small. AntennsD multi-articulate, the two basal joints stouter than 
the others. Pro-thorax forming a narrow collar. Meso- and meta- 
thorax separated. Abdomen ovate. Anterior wings represented by 
small, coriaceous, hairy, convex scales. 
According to Hagen, Lepinotus of Von Heydeu (Stett. Zeit., 1850) 
is identical with Clothilla. I append a mark of doubt against the 
name, because Lepinotus is described as possessing three closely-placed 
ocelli (" Stirne mit dx'ei geniiherten Nebenaiigen ") : probably a mistake 
has occurred in the original description. 
1. — Clothilla pulsatoma, Linne. (Plate 2, fig. 2.) 
Termes pulsatoriiim, Linn. Faun. Suec. p. 474, 1937 (1761) ; Syst. Nat. 
p. 1015, 2; T. Ugnaria, De Geer, Mem. t. 7, p. 41, tab. 4, fig. 1 (1778). 
