REVISION OF GENUS EUCERCEEIS CRESSON 



43 



Thorax black except for a line on the pronotum, the metanotum, 

 a patch on the propodeum and a small spot on the pleuron, all of 

 which are yellow; tegulae low and smooth; enclosure with a deep 

 medial groove and heavily ridged subparallel to the base; mesosternal 

 tubercles absent; legs dark fuscous basally to near the apical end of 

 the femori beyond which they are fulvous; wings subhyaline but 

 clouded with fulvous, darker along the anterior part, second 

 submarginal cell petiolate. 



Abdomen black except for a deeply emarginate band on tergum 

 1, a narrow posterior band on tergum 2, a broken anterior line on 

 tergum 3, a divided band on terga 4 and 5, tergum 6 exclusive of 

 the pygidium, and broad but emarginate semidivided bands on 

 sterna 3, 4, and 5, all of which are yellow; pygidium with sides slightly 

 convex converging to a narrow rounded apex, 



Male. — Unknown. 



Figure 25. Mexican Gulf Coast. E. menkei, new species 



E. menkei Scullen is approximately the same size and has about 

 the same color pattern as E. stangei Scullen being described from the 

 state of Oaxaca. The clypeal structures of the females are very dif- 

 ferent. The very unusual position of the mandibular denticles shows 

 a close relationship to E. sinuata Scullen. E. menkei Scullen is known 

 only from the unique female which is very different from any other 

 known species. The color pattern would indicate it could prove to 

 be the female of E. melanosa Scullen. 



Type. — The holotype female of E. menkei Scullen was taken 10 

 mi, N.W. of Tamazulapam, Oax., Mexico, Aug. 22, 1959 (L. A. 

 Stange and A. S. Menke). Deposited at the California Academy of 

 Sciences. 



Distribution. — Known only from the type locality of Tama- 

 zulapam, Oaxaca, Mex. 



Prey record, — None. 



Plant record. — None. 



274-514—68- 



