210 SPHEGIDiE. 



a golden-yellow tint ; bands on the abdomen pure silvery ; wings 

 hyaline and iridescent. 



Hah. Celebes ; Tenasserim ; Barrackpore ; Sikhim. $ . Length 

 9-11; exp. 15-18 mm. 



401. Lyroda venusta, n. sp. 



5 . Closely resembles L. formosa, Smith, and like that species 

 is black, with dense silvery pile on the front, the clypeus, cheeks, 

 pronotum, sides and apex of the mesonotum, sides and apex of 

 the median segment, and the posterior margins of the lst-4th 

 abdominal segments above ; but the median segment is somewhat 

 coarsely reticulate, not finely rugose, and the abdomen has not the 

 two basal segments red, but is entirely black. This species is also 

 slighter and smaller than L. formosa. 



Hah. Tenasserim. $ . Lencjth 7-8 ; exp. 12-15 mm. 6 . Length 

 6-7 ; exp. 12 mm. 



Genus PIAGETIA. 

 Piagetia, Bits. Ent. Month. Mag. ix, p. 121 (1872). 



Type, P. ritsemce, Kits. 



Eange. Ethiopian and Oriental regions. 



Head a little broader than the thorax ; mandibles incised on their 

 outer margin ; eyes moderately con- 

 vergent towards the vertex ; anterior 

 ocellus complete, round, normal ; 

 posterior ocelli flat and indistinctly 

 formed as in Tachytes, Tachysphex, 

 &c. ; pronotum depressed below the 

 level of the mesonotum, lengthened 

 into a collar anteriorly ; middle seg- 

 ment about as lougasthe mesonotum, 

 or a little shorter, narrowed pos- 

 ' teriorly and roundly truncate; fore 



Piagetia fascSiipennis,S. I- wing with one radial and three 



cubital cells, the radial cell broad and 

 broadly truncate at apex, appendiculate ; 1st cubital cell as long 

 as the 2nd and 3rd united ; the 2nd trapeziform, receiving both 

 recurrent ner.vures ; legs with tibiae and tarsi spinose, the front 

 tarsi ciliated, the cilia short and feeble ; intermediate tibiae with 

 one apical spur ; posterior femora in the male with a strong curved 

 spine or hook on the underside, in the female merely thickened, 

 sometimes with an indication of a curved spine ; abdomen with 

 the basal segment clavate, slightly curved; the anal segment 

 with a well-marked pygidial area, in the female triangular and 



nearly flat. 



Nothinty is on record as to the habits of the species of 

 this genus, of which, so far as I know, only five have been 



