274 [May, 
Genus Elipsocus, Hagen (186G). 
JPsocus, p. auctorum. 
Tarsi 3-jointed. Neuration as in Gcecilius. 
1. — Elipsocus unipunctatus, Miiller. 
Semerohius imvpunctatus, Miill. Eaun. Eridrichs. p. 66, 580 (1764) 5 
Prodr. p. 146 1690. K. apUdioides, Sclik. En. Ins. Aust. p. 314, 629 
(1781). Psocusimmunis,^ie^]\. 111. p. 121, 16 (1836) ; Hag. Ent. Ann. 
1861, p. 23, 4. P. longicornis, Stepli. 111. p. 121, 15, nee Eab. P. 
ohliteratus, Zett. Insect. Lapp. col. 1052, 4 (1840). P. naso, Eamb. 
Nevrop. p. 320, 5 (1842). Ccecilius vitri])ennis, Curt. B. E., pi. 648, 28 
(1837). 
Antennai about the length of the wings, scarcely pilose in $ , black, the two basal 
joints yellowish. Head, yellowish with blackish spots on the crown (varying to all 
brown) ; nasus with numerous blackish convergent streaks. Thorax black or brown, 
with the divisions of the lobes, and elevated radiating lines, yellowish. AhdLoynen 
brown or black, varied with yellow. Legs pale yellow, the tips of the tibise and the 
tarsi black, tibiee with very minute blackish points. Wings hyaline with brown 
veins; pterostigma very narrow, elongate, its lower edge cui-ved, pitchy-brown, 
which colour extends slightly below the vein forming the stigma ; free marginal 
cellule large, sub-triangular, the apex rounded and nearly touching the vein 
above it. Length of body 1^-2'" ; expanse of fore-wings 5-5 J."' 
A common species. 
2. — Elipsocus Westwoodii, McLachlan, n. sp. 
Psocus '^-maculatus, Westwood, Introd. vol. 2, p. 19., fig. 59, 8-9, nee. 
Latreille (noticed). 
Fuscus ; a/ntennis alis irevioribus ; Ms vix elongatis, hyalinis ; anticis fascia 
media flexuosa, maculis dniaius, ima pterostigmaticali, altera cellulam ellvpticam 
circwnscrihenti, plus minus intense fuscis ; venis suh-ciliatis, nigricantibus. 
Long. carp. 1-1^'" ; exp. alar. 3^-31"'. 
Antennx shorter than the wings, brown. Head and thorax more or less intensely 
brown. Abdomen and legs brown. Wings hyaline ; anterior wings rather elongate, 
a fascous zig-zag transverse fascia (sometimes nearly absent) follows the course of 
the veins in the middle, often uniting with the pterostigma ; the latter is elongate, 
much dilated beyond its middle, the dilated portion occupied by a more or less 
intense fuscous spot ; the free posterior cellule large and elliptical, and usually 
margined with fuscous ; veins blackish, slightly ciliated. 
Not uncommon on tree-trunks : not in Stephens' collection. 
This is (according to the types) the species considered by West- 
wood as P. 'k-maculatus, Latreille. The latter species, however, is a 
true Psocus in the restricted sense, and I believe identical with P. 
maculipennis, Stephens. The large specimens mentioned by Westwood 
(loc. cit.), and supposed by him to be the females, are P. bifasciatus. 
