THE GENUS MONODONTOMERUS — GAHAN 477 



about twice as broad as long; club 3-joiuted, ovate, not broader than 

 funicle and a little longer than two preceding joints combined. Sur- 

 face of head nearly uniformly shagreened but with a smooth area 

 along posterior orbit at lower extremity of eye. 



Thorax about twice as long as broad, sculptured about like the liead; 

 scutellum longer than broad, its surface behind transverse furrow 

 nearly smooth medially but distinctly though weakly aciculately 

 sculptured laterally; punctate groove setting off marginal frenum on 

 scutellum not interrupted; postscutellum with a weak median carina; 

 median depression on propodeum triangular, area between median 

 depression and spiracular sulcus distinctly though not strongly reticu- 

 lated. Tooth on posterior femur short, broad at base, and located at 

 approximately apical one-fifth of femur. Anterior wing extending 

 beyond apex of abdomen; submarginal, marginal, postmarginal, 

 and stigmal veins in approximately the proportions of 35, 16, 8, and 5, 

 respectively. 



Abdomen about as long as head and thorax, rather strongl}^ com- 

 pressed; distinctly reticulated on sides, more weakly sculptured dor- 

 sally; first tergite perfectly smooth dorsally, comprising approxi- 

 mately one-third length of abdomen; second dorsally about half as 

 long as first and weakly aciculated ; third deeply triangularly emargi- 

 nate at middle, sculptured about like second; fourth sculptured hke 

 second, not emarginatc medially, and about as long as second; fifth 

 tergite shorter and practically smooth dorsally; sixth as long as fifth, 

 distinctly sculptured and completely clothed with suberect hairs; 

 ovipositor about as long as abdomen. 



Male unknown. 



Type locality. — Radium, Colo. 



Type.—V.^.^M. No. 54267. 



Described from one female said to have been reared from the nest 

 of a leaf-cutter bee {IMegachile) collected in an aspen log in 1922 by 

 E. Bethel. 



The type is a slightly broken but apparently normal specimen 

 greatly resembling the new species hakeri described in tliis paper. 

 Besides having the third tergite emarginate, it differs from hakeri 

 by having the malar space somewhat shorter, the ocelli less distant 

 from the eye margin, the cloud in the fore wing at the stigma larger 

 and darker, and the dorsum of the thorax not purplish except to a 

 slight extent on the pronotum. 



12. MONODONTOMERUS DENTIPES (Dalman) 



Torymus dentipes Dalma\, Svenska Vet.-Akad. Handl., vol. 41, pp. 173, 178, 

 p\. 7, figs. 23-25, 1820.— BoHEMAN, Svenska Vet.-Akad. Handl., vol. 44, p. 

 335, 1833. 



Monodontomerus dentipes (Dalman) Walkek. Ann. Mag. Nat. Hist., vol. 19, p. 

 227, 1847. 



