704 MR, R. E. TURNER ON 



14. Wings subhj'aline ; head, pronotum, mesonotum, and 



scutelluni red ; vertex punctured JS. heterogamia Siiuss. 



Wings fusco- violaceous 16. 



15. Vertex punctured ; pronotum closely punctured; legs 



black JB. /jowffl Turn. 



Vertex smooth ; pronotum sparsely punctured ; legs 



red 16. 



16. Head red, thorax black E. ruficeps ruficeps Sm. 



Tiioi-ax more or less red E. ruficeps atopogamia 



[Sauss. 



Males. 



1. Apical dorsal segment not incised at the apex 2. 



Apicd dorsal segment more or less incised at the 



apex 4. 



2. Third dorsal segment of the abdomen measured 



from the transverse basal fuiTow distinctly shorter 

 than its basal width. Abdomen wholly without 



yellow markings E. incerta Turn. 



Third dorsal segment measured from the transverse 

 basal furrow distinctlj' longer than its basal 

 width. Abdomen with very small yellow 

 markings 3. 



3. Apical dorsal segment flattened, with raised margins 



and a median carina ; pronotum entirely black ... JS: astnarensis Turn. 

 Apical dorsal segment convex, the margins not raised, 

 without a distinct median carina ; pronotum with 

 a yellow band On th6 posterior margin . ; JE?. diiietalla Turn. 



4. Abdomen entirely black, sometimes with blue sheen , 5. 

 Abdomen banded with yellow ....;; 6. 



5. Wings more or less shaded with fuscous or viola- 



ceous ; incision of the apical segment half as deep 



as its apical width. Length 15-18 mm E. ruficeps Sxa. 



Wings clear hyaline ; incision of apical segment 



much less than half as deep as its apical width. 



Length 13 mnl ■. E. nodosa Guer. 



C; Apical dorsal segment flattened with raised margins ; 



head large, the cheeks more than half as broad as 



the eyes E: capitata Sm. 



Apical dorsal segment convex, with a median carina ; 



head small, the cheeks much less than half as 



brdad as tlie eyes . . : 7. 



7. Not very sleilder ; the apical dorsal segment with an 



incision nearly as deep as broad at the apex E. ^poliaid Turn. 



Very .slender ; incision df the apical dorsal segment 



ndt mdre thin half as deep as its dpital breadth ... E, loHgiveiitris Turn. 



Elis (Mesa) alici:^, sp. n-. (PI. LXXXI. fig. 12 ; P1-. LXXXII. 

 &g. 8 ; PI. LXXXIII. fig. 9.) 



5 i Nigra ; segmentis ahd'OTninulihus •quinto seMoqxie rufo- 

 ferrugineis ■; ^jecZi^ws alho'-pilosti,s, calcariis alhiilis ; alls nigro- 

 eceruleis: 



Long. 18 inm, 



2 . Head ailcl thor.lx coarsely punctbred-rugioSe, the punctures 

 (on the front finer than on the vertex ; clypeiiS very broadly 

 rounded at the apex, with two or three indistinct teeth on the 

 inai-gin •; sCape shining and sparsely punctured, clothed beneath 

 \vith long whitish hairs ; the nine apical joints of the flagellum 

 opaque. Front thinly clothed with white hairs, the interantennal 

 prominence well developed and feebly bilobed. Inner margin of 

 the eyes siightly sinuate ; posterior ocelli about twice as far from 



