112 Bulletin Wisconsin Natural History Society. [Vol. 7, Nos. 3-4. 



Family PROCTOTRYPID.<E. 

 Proctotrypes Latreille. 



The seven species which are so far known from the state may 

 be separated by the aid of the following key : 



1. Head quadrate or longer than broad 2 



Head strongly transverse 3 



2. Head quadrate when seen from above f emoratus Ashm. 



Head considerably longer than wide angusticeps sp. nov. 



3. Antennae of male with simple joints, not dentate or toothed.. 6 

 Antennae of male with some of the basal flagellar joints 



toothed or dentate above 4 



4. First five, six or seven joints of male flagellum dentate 5 



First joint of male flagellum simple ; cylindrical ; joints 2-8 



dentate placidus sp nov. 



5. Legs ferruginous ; tooth on first flagellar joint conspicuous. 



serricornis sp. nov. 

 Legs much inf uscated ; tooth on first flagellar joint not promi- 

 nent, but nevertheless present obscuripes sp. nov. 



6. ■ Body entirely black simplicior sp. nov. 



Second abdominal segment almost entirely red. 



terminalis Ashm. 



Proctotrypes femoratus Ashm. 



Ashmead, Bull. U. S. Nat. Mus., No. 45, p. 344 (1893). 



I have seen two specimens, both from Orcas Island, San 

 Juan Co., one collected on the slope of Mount Constitution. The 

 species was originally described from Wyoming. 



Proctotrypes terminalis Ashm. 



Ashmead, Bull. U. S. Nat. Mus., No. 45, p. 377 (1893). 

 Kieffer, Berliner Entom. Zeitschr., Vol. 50, p. 276 (1905). 



Several years ago I received a specimen of this species from 

 Mr. H. L. Viereck bearing the label "Washington Territory, 

 A. E. S. Collection." 



Proctotrypes angusticeps sp. nov. 



Female. Length 2.5 mm. Shining black, the legs and base of an- 

 tennae pale yellowish brown. Head very long antero-posteriorly, over 



