224 G. E. J. NIXON 



Hy pomicr ogaster semele sp. n. 



$. Very like fomes, from which it differs by little more than the characters given in the key. 

 Although the thorax is much more reddened, tergite i is darker than in fomes and is blackened 

 almost all over. The hind tibia is slightly more infuscate at apex and the segments of the hind 

 tarsus are a little more obviously marked with yellow at base. 



Antenna slightly longer and not of such weak build. Areolet virtually triangular ; hair fringe 

 of the vannal lobe slightly more distinct. Propodeal keel weak and somewhat obscured by 

 irregular rugosities. Ovipositor sheath fully as long as the hind tibia. 



Morocco : Rabat, 3 $$, one the TYPE, bred from Simaethis nemorana. 

 Type in the British Museum (Nat. Hist.). 



Host : Simaethis nemorana Hubner (Glyphipterigidae). 



This species and fomes are closely related and need to be carefully distinguished. 



Hy pomicr ogaster vacillatrix (Wilkinson) comb. n. 



Microgaster vacillatrix Wilkinson, 1930a : 155. 



$. Thorax extensively pale-marked, the propodeum being as yellowish as the posterior part 

 of the mesoscutum. Gaster reddish-yellow except for medial infuscation on tergites (2 + 3)-6. 

 Hind coxa and hind femur entirely reddish yellow. 



Face shiny, virtually impunctate. Antenna weak, a little shorter than the body, tapered 

 distally and with the preapical segment about one and one third times longer than wide. 

 Posterior transverse tangent to the anterior ocellus hardly touching the posterior pair ; pos- 

 terior ocelli separated by a distance clearly greater than the diameter of the anterior ocellus. 



Mesoscutum with faint satin-like sheen and fairly sharply punctate all over. The two fields of 

 the propodeum smooth and polished. Vannal lobe beyond its widest part with distinct hair- 

 fringe. 



Tergite 1 shiny and with only faint rugosity on posterior part. Ovipositor sheath as long as 

 the hind tibia. 



Uganda : Kampala (type locality). 

 Type in the British Museum (Nat. Hist.). 



Host : Filodes productalis Hampson (Pyraustidae). 



Hy pomicr ogaster apollion sp. n. 



$. This species is extremely like vacillatrix. Colour altogether darker, the dark and light 

 areas of the mesoscutum being more sharply contrasted ; propodeum blackened ; whole of 

 upper surface of gaster darkened. 



Face considerably roughened towards the clypeus. Clypeus more transverse than in vacillatrix 

 Thorax less broad than in vacillatrix and hence appearing narrower in proportion to the width of 

 head. Punctation of the mesoscutum finer, less sharp and less distinct. 



Length: ca. 2*8 mm. without ovipositor. 



S. Africa : Pondoland, Port St. John, 1 — n.vi.1923, 1 $, the TYPE, (R. E. 

 Turner) . 



Type in the British Museum (Nat. Hist.). 



