JOURNAL 



Jlf\a JBopfe €in)^omoIogirHl HoriFtg, 



V^ol. XIT. SEPTEMBER, 1904. No. 3 



Class I, HEXAPODA. 



Order I, HYMENOPTERA. 

 THE PHILANTHID.E OF NEW MEXICO.— II. 



By H. L. VlERECK AND- T. D. A. COCKERELL. 



New Haven, Conn. Colorado Springs, Col. 



Genus CERCERIS Latreille. 



Tai'.le of Species. 



Species red, yellow and black or yellow the predominating color on abdomen, i. 

 Species black and yellow or black the predominating color on abdomen 8. 



1. Large species, 14 mm. and more 2. 



Smaller species, 11 mm. and less 3. 



2. Females, produced portion of clypeus broadly emarginate, forming a low ridge, 



lateral points broad and short fidelis. 



Produced portion of clypeus extending beyond the face a greater distance than 



the length of the scape, broader than long nasica. 



longer than broad morata . 



Males, metathcrax with large contiguous punctures, enclosure with smaller con- 

 tiguous punctures and a central longitudinal, impunctate area which is impressed 

 and highly polished macrosticta 



3. Abdomen with narrow black bands 4 



Abdomen with broad black bands ; first segment red 5 



4. Female, produced portion of clypeus little longer than broad platyrhina 



Males, petiole of abdomen distinctly longer than broad, metathorax largely red 



ferruginior 

 Males, petiole not distinctly longer than broad, metathorax without red..garciana 



5. Metathorax black 6 



Metathorax (except enclosure) red 7 



6. Larger ; enclosure of metathorax smooth and shining ; scutellum not spotted. 



populorum. 

 129 



