Mr. F. Walker on some new species of Chalcidites. 118 
9. Lamprotatus Venilia, mas. Viridis, abdomine nigro-cupreo, 
antennis nigris, pedibus flavis fusco cinctis, femoribus basi viridibus, 
alis limpidis. (Corp. long. lin. }; alar. lin. 13.) 
Body convex: head and thorax squameous: head dark green, 
short, transverse, a little broader than the thorax: antennz black, 
stout, slightly increasing in breadth towards their tips, rather longer 
than the thorax ; first joint long, slender; second cyathiform ; third 
and fourth very minute ; fifth and following joints to the tenth suc- 
cessively decreasing in length; club fusiform, twice the length of 
the tenth joint: thorax oval, dark green: prothorax transverse, 
short, narrower in front: scutum of the mesothorax large ; sutures 
of the parapsides distinct, approaching each other ; axille large, tri- 
angular, not conniving ; scutellum truncate-conic, having a channel 
at the tip but none at the base: metathorax large, obconic, decum- 
bent: podeon squameous, stout, very short, not longer than one- 
sixth of the abdomen: abdomen nearly linear, smooth, flat, dark 
purple, shorter and narrower than the thorax ; metapodeon conical, 
concave, mostly zneous green, occupying nearly half the dorsum; 
the following segments from the octoon to the protelum short, trans- 
verse, nearly equal in size; paratelum and telum very short: legs 
yellow ; coxe green, squameous ; thighs fuscous; middle and hind 
tibize having two fuscous stripes across each ; protarsi fulvous ; me- 
sotarsi fuscous ; metatarsi pale yellow, fuscous at their tips: wings 
limpid ; nervures fuscous ; humerus less than half the length of the 
wing ; ulna about half the length of the humerus ; radius very much 
longer than the ulna; cubitus rather more than half the length of 
the ulna ; stigma very small, emitting a short branch towards the ra- 
dius. Length of the body 2 lin. ; expansion of the wings 1} lin. 
Found by Dr. Greville in Northumberland. ‘The black and com- 
paratively stout antennz will distinguish this species from L. tarsa- 
lis, annulipes, costalis, semiauratus, philochortoides, cyaneus, brevis, 
contiguus, linearis and filicornis. 'The very slender pale stigma se- 
parates it from all the other species, having dark bands round their 
middle legs. 
10. Psilonotus Hortensia (Haliday MSS.). Viridis, antenne lutee, 
pedes flavi, femoribus basi fuscis, ale limpide. 
Male.—Head and thorax bright green, convex, shining, finely squa- 
meous: head a little broader than the thorax : antenne inserted near 
the mouth, luteous, slightly clavate, shorter than the thorax; first 
joint long, slender, slightly curved; second cyathiform; third and 
fourth very minute; fifth and following short and very small; club 
fusiform, more than twice the length of the tenth joint: thorax oval : 
prothorax short, narrower in front: scutum of the mesothorax broad ; 
sutures of the parapsides hardly visible : axille rather large, not con- 
niving ; scutellum truncate-conical: metathorax large, obconic, de- 
clining: podeon very short, so that the abdomen appears sessile : 
abdomen dark purple, smooth, depressed, nearly linear, narrower and 
much shorter than the thorax ; metapodeon large, green towards the 
base, covering at least one-third of the dorsum; octoon, ennaton 
