— 511 — ■ 



l»l;ick, hroadesl on llie fore fcniora, narrowcst ou llic liind Icniora; libiat; 

 light brown, tlie bases and lips darker brown; A\ing-s grevish subhvab'ne, 

 tbe base and the coslal région yellow ; abdomen yelloAv wilh a velvely l)lack 

 subterminal ring. 



Fcmale. — Leugl abonl i5,5 mm.: wiug, i3 mm. 



Frontal prolongation of ihc hcad dull yellow; palpi liglil brown, llio 

 terminal segments darker broAvn ; moutbpnrts brown. Antenuae liglil 

 yellow, only the distal flagellai' segments brownisb. llead eutirely yellow ; 

 occiput witbout a shiny area. 



Pronotura light yellow. Mesonolal praescutum liglit yellow with tliree 

 broad, shiny black stripcs, the iulerspaces and outer ends of the latéral 

 slripes opaque velvety black so ail the stripcs appear conilueut; scutnni 

 yellow, tbe lobes shiny black, margincd with opacpie velvely black con- 

 nected across the suture Avith the black area on the praescutum ; remaiuder 

 of the mesonotum light jellow. Pleura yellow . Hallcres yellow. Legs AAith 

 the coxac and trochanters yellow; femora yellow, the tips black, tliose 

 of the foi'c femora broad (4,3 mm.) including about the distal half, the 

 middle and hiud femora with narrow tips, narrowest (i,5 mm.) on the 

 liind femora, a little broader (2 mm.) on the middle femora; tibiae pale 

 broAvn, Ihe exti-eme bases and the rallier broad tips dark broAxnish black; 

 larsi dark broAvnish black. ^Aings greyisli subhyaline, the Aving-base and 

 the costal and subcostal cells bright yellow ; stigma dark brown, oval, 

 scarcely hairy; Aving-tip, indistinctly darkened; a narrow, brown seam 

 along the cord to ihe fork of 1/; veins dark broAvn, those in the yellow 

 areas e little more jellowish. Venalion : Bs dislinctly shorler thi»n R2 + 3; 

 cell ^1/1 rather narrowly sessile; fusion of .1/ and the basai defleclion 

 of Cu\ punctiform. 



Abdomen bright yellow with a deep velvety black ring, this including 

 segments six to eight. Ovipositor dark horn color. 



Habitat. — Madagascar. 



Flolotype, 9. Imerina, Foret d'Andrangoloaka, 1891 (A. Ciraudidicr). 



Type in the Collection of the Paris Muséum. 



;<'i 



