48 U.S. NATIONAL MUSEUM BULLETIN 2 68 



small spots on the enclosure near the apex, a patch on the pleuron 

 and a spot on the tegulae, all of which are creamy white; tegulae 

 normal; enclosm'e with a deep medial groove and heavily ridged 

 subparallel to the base; mesosternal tubercles absent; legs ferruginous 

 with light yellow patches of variable sizes on all coxae, all trochanter, 

 the fore and mid femora and the fore and mid tibiae; wings subhyaline 

 with a dark area near the apical end of the stigma and a second dark 

 area near the apex of the fore wing; second submarginal cell not 

 petiolate. 



Abdomen black except for a broad band on tergum 1, a broad band 

 enclosing a dark area in the depression on tergum 2, narrow bands 

 broadening laterally on terga 3, 4, and 5, narrow band on tergum 6, 

 spot on sternum 1, bands somewhat emarginate on sterna 2, 3, and 4, 

 and small lateral spots on sternum 5, all of which are creamy white; 

 wide prominent rows of bristles are on the apical margins of sterna 

 3 and 4; pygidium as illustrated (fig. 29). 



The subspecies E. morula albarenae Scullen differs from the nominate 

 subspecies as follows: 



E. morula morula Scullen E. morula albarenae Scullen 



Female 



Two patches on the scutellum. Complete band on scutellum. 



A divided band or two patches on tergum Emarginate band on tergum 1. 



1. 



All parts of body black with creamy white Terga 1 and 2 and all sterna more 



marks. or less infused with ferruginous. 



Male 



Yellow of face not closed above the an- Yellow of the face closed above the 

 tennae (i.e., vittae of the face fuse with antennae (i.e., vittae of the face 

 the black of the vertex) . do not extend to the vertex) . (In- 



termediate conditions are found.) 



Evanescent spots may appear on the en- No evanescent spots on the pro- 

 closure and small evanescent spots may podeum or the enclosure. 

 appear on the propodeum near the apex 

 of the enclosure. In rare cases these 

 latter spots may be joined to the larger 

 lateral patches of the propodeum giving 

 an inverted "C" shaped patch. 



Band on tergum 1 broad and uninter- Band on tergum 1 divided or deeply 

 rupted. emarginate. 



Types. — The type 9 and allotype cf of E. morula albarenae 

 Scullen were taken 31 mi. NE. of Las Cruces, Otero County, N. Mex. 

 (near the White Sands^National Monument), Sept. 9, 1962, at 4,000 

 ft. elev. on Sartwellia mexicana (H. A. Scullen). They are at the U.S. 

 National Museum, no. 69228. 



