Parasitic ITymenoptera from Borneo. 167 



eyes extending to the edge of the occiput, which is transverse. 

 Eyes large, parallel, not converging. Parapsidal furrows 

 distinct. Metatliorax spiued, with one (the basal) trans- 

 verse keel. Abdominal petiole broadly dilated at the apex. 

 Metapleural keel obsolete. Thorax three times longer than 

 wide. First joint of Hagellum slightly longer than the 

 second. Ovipositor short. Hind legs stout, not greatly 

 lengthened. Claws long. The spiracles on first abdominal 

 segment are wider from each other than they are from the 

 apex. Head not wider than the thorax. 



The second transverse cubital nervure is faint ; the trans- 

 verse median nervure is received shortly behind the transverse 

 basal ; the transverse median nervure in hind wings is 

 angularly broken below the middle. Scutellum roundly 

 convex, the sides not margined. Metathoracic spiracles 

 small, oval, not much longer than wide. 



Of the Oriental genera of Mesostenini the present most 

 resembles Melcha, which may be known from it by the longer 

 and thinner abdominal petiole, which is not abruptly dilated 

 at the apex and whose spiracles are nearer to each other than 

 to the apex, by there being a complete metapleural keel and 

 one above it, and by the longer median segment Avith two 

 transverse keels. The Oriental genus Skeatia, Cam., has 

 some affinity with Loiada ; but it may be known by the 

 longer, narrowed, not square areolet, by the long, linear 

 metathoracic spiracles, by the head being distinctly wider 

 than the thorax, and by the scutellum being clearly longer 

 than wide, which is not the case with the present genus, in 

 which it is, if anything, wider than long. 



Loiada macidiceps, sp. n. 



Black, clypeus, mandibles, palpi, an interrupted line on 

 the inner orbits, malar space, a line on the pronotum, 

 tegulse, tubercles, scutellar keels, scutellum, sides of median 

 segment, apex of basal two abdominal segments broadly, of 

 the fourth more narrowly, and the whole of the apical two, 

 yellow. Legs fulvous red ; the four front coxce and tro- 

 chanters pale yellow ; the base of hind tibiie narrowly, the 

 apex more broadly, and apex of tarsi, black. Wings hyaline, 

 the stigma black. Antennae with a broad white band. ? . 



Length 8 mm. ; ovipositor 1 mm, 



Kuching {R. She/ford, M.A.). 



Face strongly, closely, rugosely punctured; upper part of 

 front closely, finely, obliquely striated. Mesonotum minutely 

 punctured-aciculated, the sides finely closely striated. 



