180 =6Mr. F. Walker on some. new species of Chalcidites. 
joints unto the ninth small, successively increasing in breadth ; eighth 
and ninth joints yellow; club 3-jointed, fusiform, as long as the three 
preceding joints: thorax rounded in front, square behind, neous 
green, pale red on each side: prothorax transverse, short, convex in 
front, straight behind: scutum of the mesothorax broad; parapsides 
united to the scutum; axille large, triangular, complete or meeting 
together between the scutum and the scutellum ; scutellum cupreous, 
large, obconic: metathorax, propodeon and podeon very short and 
broad ; abdomen obconic, depressed, cupreous, smooth, shining, much 
shorter than the thorax; metapodeon, octoon, ennaton and decaton 
of moderate size; protelum, paratelum and telum short: legs yellow ; 
middle tibiz and tarsi dilated and the former armed with long spines ; 
a broad interrupted piceous band across each thigh and tibia: wings 
limpid; nervures fulvous; humerus rather less than half the length 
of the wing ; ulna extremely short ; radius very short; cubitus longer 
than the radius; stigma very small. 
England. From the collection of the Rev. G. T. Rudd. 
18. Encyrtus Genutius, fem. Véiridis, scutello cupreo, abdomine 
purpureo, antennis fulvis apice piceis, pedibus fulvis fusco cinctis, 
alis limpidis. (Corp. long. lin. 2; alar. lin. 13.) 
Body stout: head and thorax convex, dull green, pilose, finely 
squameous: head transverse, a little broader than the thorax ; vertex 
broad; front abruptly declining: eyes of moderate size, not promi- 
nent: ocelli forming a triangle on the vertex: antennz clavate, ful- 
vous, piceous toward the tips, inserted near the mouth; first joint 
long, stout; second long-cyathiform; third and following joints 
short, successively increasing in breadth until the ninth; club ellip- 
tical, piceous, broader than the ninth joint and more than thrice its 
length: thorax oblong-quadrate: prothorax transverse, very short : 
scutum of the mesothorax broad, nearly flat on the disc; parapsides 
united to the scutum; axille complete or meeting together on the 
dorsum; scutellum cupreous, obconic: propodeon transverse, short, 
declining: podeon extremely short: abdomen obconic, purple, de- 
pressed, smooth, shining, rather shorter and narrower than the tho- 
rax; metapodeon of moderate size; octoon and following segments 
short: oviduct subexserted: legs fulvous; mesotibie and mesotarsi 
dilated and the former armed with long spines; cox green; thighs 
and tibie and tips of the tarsi fuscous: wings limpid; nervures ful- 
vous; humerus much less than half the length of the wing; ulna 
fuscous, very short; radius extremely short; cubitus of moderate 
length, pointing towards the disc of the wing; stigma very small. 
England. From the collection of the Rev. G. T. Rudd. 
19. Encyrtus Mamertus, mas. Niger, antennis nigris, pedibus ful- 
vis, alis limpidis. (Corp. long. lin. $; alar. lin. 1.) 
Body black, stout, slightly pubescent: head and thorax convex, 
finely squameous: head transverse, very short, nearly as broad as 
the thorax ; vertex broad; front impressed, abruptly declining : eyes 
of moderate size, not prominent: ocelli near together in a triangle 
