314 



U. S. NATIONAL MUSEUM BULLETIN 216 



PAKT 3 



Figures 168-171. — Localities: 168 (left), Joppidium arizonicum; 169 (center, left), J. 

 densum; 170 (center, right), /. discolor; 171 (right), /. ruhriceps. 



that of type but somewhat darker and with more extensive brown 

 areas. 



Female: Unknown. 



The type and paratype belong to different color races. Whether 

 or not they should be considered separate subspecies should be decided 

 after more specimens are available. The type has the kind of colora- 

 tion characteristic of a number of Hymenoptera in southern Colorado 

 and northern Arizona and New Mexico, including Labena grallator 

 ochreata, Polistes canadensis navajoe, Mischocyttarus Jlavitarsis navajo, 

 and Trogus jlavipennis. The paratype has a coloration more normal 

 for the genus Joppidium. 



Type: cf, Springerville, Ai-iz., Aug. 24, 1935, T. H. and G. G. 

 Hubbell (Ann Arbor). 



Paratype: d^, Santa Kita Mts., Ariz., Aug. 18, 1935, E. I. Beamer 

 (Lawrence). 



6. Joppidium rubriceps Cresson 



Joppidium ruhriceps Cresson, 1872, Trans. Amer. Ent. Soc, vol. 4, p. 160; d^, 9 . 

 Lectotype: 9, Bosque Co., Tex. (Philadelphia). 



Front wing 9.5 to 12.5 mm. long; mesopleurum with about 70% of 

 its area covered with rather fine wrinldes of irregular strength, mostly 

 somewhat oblique, the rest of mesopleurum with moderate sized 

 punctures that are rather strong and close, but irregular in both 

 strength and spacing; metapleurum with coarse strong punctures, 

 separated by about 0.6 their diameter in male, by about 0.3 their 

 diameter in female, the hind half of metapleurum with weak, irregular 

 wrinkling between the punctures; basal carina of propodeum complete 

 and sharp; propodeum beyond basal carina with irregular wrinkling. 



