1909] Brues, Prel. List Proctotrypoid Eymenoptera of Wash. 115 



verse, barely twice as wide as thick, its surface smooth and polished 

 except for a faint punctulation on the face. Front between the anten- 

 nae, with a short median carina which extends tor a slight distance down 

 the front. Eyes oval, bare ; ocelli in a broad, transverse triangle. An- 

 tennae 13-jointed, entirely black; distinctly longer than the head and 

 thorax. Scape twice as long as thick, shorter than the first flagellar 

 joint; second a little shorter than the first; following subequal but 

 very gradually shortening; apical joint longer. First five flagellar 

 joints dentate above, also sometimes less distinctly so to the sixth and 

 seventh. Mandibles piceous, palpi fuscous. Mesonotum shining, with 

 sparse pale grayish pubescence. Scutellum sharply convex, with a 

 transverse depression at its base. Metathorax finely rugose reticu- 

 late, with a median carina extending entirely to the tip; above with 

 a smoother space, but without any lateral carinae. Metathorax, viewed 

 from the side, about one-half longer than high and evenly arcuate 

 above. Pro and mesopleurae smooth and shining. Tegulse ferruginous. 

 Abdomen shining black ; petiole a little broader than long, longitudin- 

 ally fluted; second segment with a few coarse striae at the base, 

 longer medially. Spines at tip of abdomen black. Legs, including 

 coxae, black or piceous; bases and tips of femora and tibiae, except 

 darkened spot medially, honey-yellow. Wings hyaline, without trace 

 of any discoidal veins; stigma and nervures piceous, marginal cell 



petiolated, one-third the length of the stigma. 



Described from two males collected on the islands in Puget 



Sound, Wash., one on the slope of Mount Constitution on Orcas 



Island. 



This species is most closely related to the following species, 



from which it may be most easily separated by the different color 



of the legs. 



Proctotrypes serricornis sp. nov. 



Male. Length 4.5 mm. Entirely black; legs, except coxae, fer- 

 ruginous. Head transverse, not quite twice as broad as thick, quite 

 strongly narrowed on the temples behind the eyes. Front with a slight 

 median carina between the antennae. Surface of the head smooth, ex- 

 cept the face which is punctulate and furnished with a median longi- 

 tudinally convex central elevation, on each side of which at the base 

 of clypeus are two unusually well pronounced foveae. Mandibles and 

 palpi piceous. Eyes bare, oval, separated by less than their diameter 



