22 Mr. F. Walker on some undescrlhed Species of the Genus Leiicospis. 



nigris, femoribus posticis tibiisque nigro vittatis ; alas cinerese^ apud 

 costam fuscfe. 



Female. Blackish metallic gi'een, thickly and minutely pimctured. 

 Head, metathorax and pectus bright metallic green. Antennae black, 

 reddish towards the base; scape yellow beneath. Prothorax with a 

 yellow short transverse line in front, bordered with yellow behind and 

 on each side, where the yellow part is triangidar. Abdomen com- 

 pressed, sessile, about twice the length of the thorax, bright golden 

 towards the tip ; first segment dark red, with metallic green reflexions, 

 very little narrower than the other part, which is fusiform and keeled. 

 Oviduct recurved to the metathorax. Legs yellow ; anterior femora, 

 except towards the tips, and anterior coxae black ; tibiae striped with 

 black; hind coxae very large, green, striped with yellow; hind femora 

 dilated, striped with black, ^\'ith one obtuse and with about eight 

 minute teeth. Wings cinereous, brown along the costa. Length of 

 the body 6 lines ; of the wings 10 lines. 



Ega. Discovered by Mr. Bates. In the British Museimi. 



Leucospis ignota. 3Ias, Nigra; caput postice cupreum; antennse 

 basi obscure rufescentes, scapo subtus flavo ; prothorax flavo bifasciatus ; 

 scutum flavo marginatum ; scutellum flavo bimacidatum ; abdomen 

 subpetiolatum, basi apice et segmentorum marginibus aeneis ; pedes 

 femoribus tibiisque posticis femoribusque anticis flavo "vittatis, tarsis 

 rufescentibus ; alae cinereae, apice nigricantes. 



Male. Black, thickly and minutely punctured. Head cupreous 

 hindward. Antennae dark reddish towards the base ; scape yellow 

 beneath. Prothorax bordered with yellow in front and behind. Meso- 

 thorax with the border of the scutum and a spot on each side of the 

 scutellum yellow. Metathorax dull reddish. Abdomen subpetiolated, 

 bright aeneous towards the base and towards the tip and on the hind 

 borders of the segments ; first segment cylindrical, hardly half the 

 breadth of the following part, which is fusiform. Knees yellow ; tarsi 

 reddish ; fore femora, hind femora and hind tibiae striped above with 

 yellow ; hind femora moderately dilated, striped beneath with yellow 

 towards the base, armed with one lai-ge and with several very minute 

 teeth. Wings cinereous ; fore wings blackish at the tips. Length of 

 the body 3 lines ; of the wings 5 lines. 

 Hah. ? In the British Museum. 



PoLiSTOMOBPHA SPHEGOiDES. Foem. Piceo-nigTa ; antennae rufae, basi 

 nigrae ; prothorax linea postica transversa brevi pallide fidva ; nieso- 

 thorax lineis duabus pallide fulvis postice approximatis ; abdomen 

 cinereo-pubescens, fulvo imifasciatum ; pedes tibiis tarsisque anteriori- 

 bus fidvis, femoribus posticis fulvo pallidissimo vittatis ; alae luridoe. 



Female. Piceous-black, very thickly and minutely punctured. Head 

 in front and mouth much prolonged. Antennae red, black towards the 

 base. Prothorax with a short pale tawny transverse line on the hind 

 border, Mesothorax with two pale tawny lines which converge hind- 



