Mr. F. Walker on some new species of Chalcidites. 113 



9. Lamprotatus Venilia, mas. Viridis, abdomine nigro-cupreo, 

 antennis nigris,pedihusflavisfusco cinctis,femoribus basiviridibus, 

 alls limpidis. (Corp. long. lin. J ; alar. lin. Ij.) 



Body convex : head and thorax squameous : head dark green, 

 short, transverse, a little broader than the thorax : antennae 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 ; axillae 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 aeneous 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 ; coxae green, squameous ; thighs fuscous ; middle and hind 

 tibiae 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 |- lin. ; expansion of the wings \^ lin. 



Found by Dr. Greville in Northumberland. The black and com- 

 paratively stout antennae will distinguish this species from L. tarsa- 

 lis, annulipes, costalis, semiauratus, philochortoides, cyaneus, brevis, 

 contiguus, linearis 'dudJlUcornis. The very slender pale stigma se- 

 parates it from all the other species, having dark bands round their 

 middle legs. 



10. Psilonotus Hortensia(HalidayMSS.). Viridis, antenncelutea, 

 pedes flavi,femoribus basifuscis, alee limpidce. 



Male. — Head and thorax bright green, convex, shining, finely squa- 

 meous : head a little broader than the thorax : antennae 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 : axillae 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 



