June, '09] ENTOMOLOGICAL NEWS. 245 



A New Euceros. 



BY P. H. HERTZOG, Bucknell University, Lewisburg, Pa. 

 EUCEROS Gravenhorst (EUMESIUS West wood). 



TABLE FOR DETERMINATION OF SPECIES. 

 Posterior tibiae black or dusky, yellow at base. 



Coxae, femora and abdomen rufous frigidus Cress. 



Coxae black to yellow. 



Abdomen, except basal segment, rufous couperii Cress. 



Abdomen black, with apical half of all the segments yellow, stigma 

 black ; scutellum at base and most of hind coxae yellow. 



obesa Davis. 

 Abdomen varied ; stigma rufous. 



Black and yellow and always with a more or less distinct median 

 longitudinal yellow stripe ; hind coxae and scutellum at base 



mostly black canadensis Cress. 



Brown, almost black along margin ; yellowish stripe on segments 



1-4 not distinct vicrccki n. sp. 



Posterior tibiae rufous, sometimes yellow at base. 



Hind tarsi rufous, with median segments yellow; wing very daik at 



apex sanguineus Davis. 



Hind tarsi unicolorous, wings faintly dusky at apex. 

 Sternum lemon yellow. 



Notum black and yellow thoracicus Cress. 



Notum and abdomen dark rufous facieus Davis. 



Sternum color of the remainder of thorax. 

 Abdomen fulvous, with more or less distinct, transverse yellow 



spots ; thoracic vittae yellow . medialis Cress. 



Abdomen and thorax uniform bleached fulvous . ilavescens Cress. 



Euceros vierecki n. sp. 



$ differs from Euceros canadensis Cress., as described on page 254 

 Trans. Am. Ent. Soc. XXIV, by Mr. G. C. Davis, in having the hind 

 coxae uniformly black underneath and inner portion as well as above; 

 sternum black; pleura black with distinct yellow markings; antennae 

 black, fulvous at apex and are only slightly enlarged in middle; median 

 yellowish stripe on segments 1-4 not distinct; there are no black cross 

 bands on the abdomen. The general color of the abdomen is brown, 

 almost black along the margin and yellowish median stripe. Length, 10 

 mm. ; wing, 9 mm. 



Type Locality. Harrisburg, Pa., June 13, 1908 (P. H. 

 Hertzog). 



Type will be deposited in the collection of the American 

 Entomological Society, Philadelphia, Pa. 



