446 Mr. Cameron on 



31. S. VITRIPENNIS, Sm. 



Mygnimia vitripennis, Smith, Ann. Mag. Nat. Hist.y 



1873, 257.^ 

 Hab. Sumatra.^ 

 To this section is probably referrable : — 



Pepsis Diselene, Smith, Cat. Eym., III., 200, 51. 

 Hab. India, Singapore. 



Salius (Mygnimia) excelsus. Cam. 



Has the typical Hemipepsis wing. Head slightly convex 

 in front and behind. Eyes not arcuate at top, parallel or 

 nearly so ; ocelli in a curve ; the posterior separated from 

 each other by a distinctly greater distance than they are 

 from the eyes ; the ocellar region raised, a depression on 

 either side of it. Clypeus convex, the apex depressed, 

 waved inwardly in the centre. Pronotum a little shorter 

 than the head, the sides rounded, narrowed towards the 

 base ; the apex roundly concave. Pronotum short, sharply 

 oblique from base to apex, there being no break in the 

 surface from the base to the apex ; the lateral tubercles 

 distinct. Abdomen subsessile ; the apex with a thick tuft 

 of hair. The third cubital cellule at the top is a little 

 longer, at bottom considerably shorter than the second ; 

 the second recurrent nervure received a little before the 

 middle — a little less than the length of the second transverse 

 cubital nervure ; the anal nervure in hind wings interstitial. 

 ^The long spur of the hind tibiae reaches beyond the middle 

 of the metatarsus. 



There is another larger species (22 mm.) which resembles 

 excelsus in colouration, except that the body has a bluish 

 tinge, and the wings have a deep purple iridescence. This 

 is probably vitripennis, Sm., from Sumatra. From excelsus 

 it is easily known by the median segment having an oblique 

 slope to the apex, when it curves down obliquely ; the 

 anal nervure in hind wing is received beyond the cubital — 

 the ocelli are larger. 



