CAMERON—HYMBENOPTERA, 85 
29. Tolbia scevole, sp. nov. 
Rufo-testaceous, the abdomen paler, the sides and base of mesonotum infuseated ; the 
head, pro- and mesothorax smooth and shining; the metanotum aciculated, with some 
indications of reticulations at the base; the abdomen aciculated, the apical segments 
smoother, more shining, and banded broadly with black. Legs covered with white 
pubescence. Wings hyaline, very iridescent, the stigma and nervures black. @, 
Length 2 mm. 
Localities, Chagos, Salomon Atoll (Isle de la Passe) in July. Bred from mines in 
Seevola. As the group to which the species belongs are known to be parasites on 
Dipterous leaf-miners, doubtless the Scevola miner is a dipteron, 
Evaniide. 
30. Lvania appendigaster, Linn. 
Schletterer, Ann. d. k.-k. Hofmus. iv. 136. 
Localities. A cosmopolitian parasite of the cockroach. Chagos, Diego Garcia (28rd 
July), Egmont Islands, Peros Banhos. Seychelles, Coetivy, Mahé (JZ. P. Thomasset). 
Chalcidide. EUCHARINA. 
31. Stibula insularis, sp. nov. 
Green, largely variegated with blue, brassy, and purple tints; the antennz testaceous, 
darker at the base; the legs paler, yellower, tinged with fulvous; the abdominal petiole 
pale fuscous, the apex pale yellow, the rest blackish purple. Wings hyaline, tinged with 
fulvous at the base, the nervures dark fuscous. <o. 
Length 3 mm. 
Localities. Chagos, Egmont Island, in July. 
Head bare, shining; the face closely covered with roundly curved strie, which become 
weaker below; there is a smooth line or keel down its centre. Clypeus bordered 
laterally by deep oblique furrows. Malar space with weak curved striz. Palpi and 
apex of mandibles yellowish testaceous, the base of the latter blackish. Antenne 
thickly covered with stiff fuscous hair. Pro- and mesothorax rugosely reticulated, 
punctured, with variegated tints; the middle lobe of mesonotum clearly defined by 
furrews, triangular. Scutellar process thick and broad at the base; the spines narrowed 
towards the apex, longer than thick, oblique. Median segment irregularly reticulated, 
not closely or strongly, the keels not strong. Abdominal petiole not quite so long as the 
rest of the abdomen, smooth and shining. 
The Eucharine, to which S¢:bula belongs, so far as their habits are known, are 
parasites on ants. 
