]\Ir. F. Walker on some undescribed Ceylon Insects. 309 



the outer side of the stigma black. Length of the body If line, 

 of the wings Z\ lines. 



MiCROGASTER SUBDUCTUS. Mds. Niger, obscurus, confertissime 

 punctatus, antennis gracilibus corpore non longioribiis, abdomine 

 glabro angusto, tibiis tarsisque anterioribus testaceis, femoribus 

 tibiisque posticis subdilatatis, tibiis posterioribns basi testaceis, alis 

 venisque albidis, vena costali extus nigra, stigmate pallide lurido. 

 Male. Allied to M. xanthostigma. Black, opake, very closely 

 and finely punctured. Antennaj slender, as long as the body. 

 Abdomen smooth, shining, narrower than the thorax. Fore tibice, 

 fore tarsi, and tips of fore femora testaceous ; posterior tibiae testa- 

 ceous towards the base ; hind femora and hind tibire slightly 

 dilated. Wings and veins whitish ; costal vein black exteriorly ; 

 stigma pale lurid, bordered by piceous veinlets. Length of the 

 body l^ line ; of the wings 3 lines. 



Spathius bisignatus. Mas. Rufus, glaber, cylindricus, capite 

 globoso, antennis pallide rufis apice nigris corpore non brevioribus, 

 abdomine fusiformi, pedibus piceis, tarsis testaceis, alis anticis 

 nigris perangustis albo quinque-notatis apice cinereis. Fcem. Niger, 

 antennis corpore longioribus, abdomine clavato. 



Male. Red, smooth, shining, cylindrical. Head globose. An- 

 tennae pale red, filiform, slender, black towards the tips, as long 

 as the body. xVbdomen convex, fusiform, much longer than the 

 thorax. Legs piceous ; tai'si testaceous. Wings very narrow. 

 Forewings black, with a white band near the base, and with four 

 ■white dots, two on the costa, one in the interior part of the disk, 

 and one on the hind border opposite the first on the costa ; tips 

 cinereous. Hind wings limpid. Female. Body black. Antennae 

 a little longer than the body. Abdomen clavate. Ovipositor as 

 long as the abdomen. Length of the body 2-2| lines ; of the 

 wings 3 lines. 



This species in structure comes between Spathius and Heca- 

 bolus, differing slightly from both genera. 



Spathius sigxipennis. Ffjem. Rufus, gracilis, scitissime punctatus, 

 capite transverso pallide luteo, antennis pallide luteis corpore paulo 

 longioribus apice nigris, abdomine piceo subclavato, oviductu 

 brevi, pedibus pallidissime flavis, alis albidis, venis nigris, stigmate 

 flavo longissimo. 



Female. Red, slender, hardly shining, very finely punctured. 

 Head transverse, pale luteous. Antennae jjale luteous, slender, 

 filiform, a little longer than the body, black towards the tips. 

 Abdomen piceous, subclavatc, })ale beneath, a little longer than 

 the thorax. Ovipositor less than half the length of the abdomen. 

 Legs very pale yellow. Wings whitish. Fore wings moderately 

 broad ; veins black ; veinlet between the subcostal and praebrachial 

 veins very strongly marked ; stigma yellow, very long. Length of 

 the body 1 J line ; of the wings 3 lines. 



This species differs from the preceding one and from Spathius 



