408 THE CANADIAN ENTOMOLOGIST 



THE NORTH AMERICAN SPECIES OF DIBRACHYS (IN 

 THE NORTH AMERICAN SENSE— CCELOP I STIIOIDEA 

 GAHAN) WITH A NOTE ON URI ELLA ASHMEAD. 



BY A. A. GIRAULT, GLENNDALE, MD. 



The genus Dibrachys. 



Antenna? inserted a little above the ventral ends of the eyes 

 but distinctly below the middle of the face. Mandibles 4-dentate. 

 Pedicel longer than funicle 1. Propodcum with little or no neck. 

 Abdomen conic-ovate, pointed. Postmarginal and stigmal veins 

 subequal, short. Segment 2 of abdomen largest, not long. 

 Propodeum tricarinate. Clypeus somewhat produced, somewhat 

 sinuate at apex, striate. 

 Spiracular sulcus absent. 



Coxae and femora and the antenna? except the scape, con- 

 colorous; funicle joints very short, all wider than 

 long, . 1 smallest; second ring-joint twice the size 

 of the first. Postmarginal vein slightly shorter 



than the stigmal apatelcB Ashmead. 



( =pimplcB Ashmead.) 

 Coxa* and the flagcllum except much of the pedicel, con- 

 colorous; funicle 1 quadrate or somewhat longer 

 than wide, longest, the ring-joints very unequal. 

 Postmarginal v^ein usually slightly longer than the 

 stigmal; propodeal spiracle reniform. Segment 2 

 of abdomen only slightly notched at meson caudad 

 as in apatelcE. Male antenna? entirely yellow, (com- 

 pare houcheanus Ratzeburg) clisiocampcB Fitch. 



{ = nigrocyaneus Norton; =chionobcB Howard ; = 

 nematicida Packard •, = gelechi(e Webster.) 

 The same but male flagellum 



black cladice Gahan . 



The species apatela and pimpla were described as Arthrolyliis; 

 clisiocampce Fitch as Semiotellus ; nigrocyaneus Norton as Cleonymus; 

 nematicida, chionobce and gelechice as Pteromaliis; and cladia as 

 Ccelopisthoidea. 



Uriella rufipes Ashmead. (Genotype) 

 Antennae inserted below the middle of the face but somewhat 



December, 1916 



