STUDIES IN THE FOSSORIAL WASPS. 713 



Elis (Mesa) ametalla Turn. 



Elis {Mesa) ametalla Turn. Ann. & Mag. Kat. Hist. (8) vii. 

 p. 305(1911), <S. 

 Hah. S. Nyasalancl. 

 Almost certainly the male of innolata. 



Elis (Mesa) nodosa Guer. 



Myzine nodosa Guer, Diet. pitt. hist, n^t. v. p. 584 (1837), S ; 

 Sauss. in Grandidier Hist. Madagascar, xx. p. 240 (1892), S • 

 Hah. Madagascar. 



*Elis (Mesa) ci<avata Sauss, 



Myzine clavata Sauss, in Qraiididierj Hist, Madagascar, xx. 

 p. 242 (1892), S. 

 Hah. Transvaal, 



*Elis (Mesa) carbonaria Cam. 



Plesia carbonaria 0am, Rec. Albany Mus. i, p, 317 (J 905), cf • 



Hah. Dunbrody, Oape Colony, 



*Elis (Mesa) beticuiiAta Cam. 



Plesia reticulata Cam, Rec, Albany Mus, i. p, 300 (1905), ^ , 



Hah. Bra.k Kloof, Cape Colony, 



*Elis (Mesa) rufo-pemdrata Cam, 



Plesia rufo-femorata Cam, Rec, Albany Mus. i.p. 298 (1905), c? , 



Hah. O'okiep, Cape Colony. 



*Elis (Mesa) incisa Cam, 



Plesia incisa Cam. Rec. Albany Mus. i, p, 320 (1905), S . 



Hah. Dunbrody, Cape Colony, 



Ilcj/ to the Oriental S'jjecies o/'Elis (Mesa). 



Peonales. 



1. Sixtli doi'sal segment longitvidinally striated 2. 



Sixth dorsal segment punctured 8. 



2. Abdomen more or less ferruginous 3, 



Abdomen wholly black 4. 



3. Clj'peus with a median carina ; two apical abdominal 



segments and the apex of the fourth black E. dimidiata Guer. 



Clj'peus without a distinct carina; apical abdominal 



segment only black TS. mandalensis Magr. 



4. Median segment distinctly margined posteriorly U.fiiscipennis Sm. 



Median segment not distinctly margined posteriorly... 5. 



5. Wings fuscous 6. 



Wings subhyaline 7- 



6. Pronotum longitudinally rugose ; second abscissa of 



the radius as long as the third. Length 16 mm... JS. mandihulai'is Sm. 

 Pronotum coarsely punctured ; second abscissa of the 



radius much shorter than the third. Lei|gth 10 mu). E. peUolata Sra. 



Proc. Zool. Soc— 1912, No. XLVII. 47 



