374 Annals Entomological Society of America [Vol. IV, 



Poriclistus californicus Ashm. 



Periclistus californicus, Ashmead, Tr. Am. Ent. Soc, vol. 23 (1896). p. 188. 



"Male and female. Length 2-2.4 mm. Similar to P. smilaeis, the 

 punctuation finer, the pubescence denser, antenna? dark brown. Legs 

 reddish yellow, sometimes obfuscated, the middle and posterior coxa? 

 black, shining. The parapsidal grooves are only distinct on the pos- 

 terior half of the mesonotum, entirely wanting anteriorly, and there is 

 no distinct grooved line on the shoulders, while the short anterior median 

 grooves are wanting; scutellum rugose, fovea? large, distinct, oblique; 

 mesopleura smooth, highly polished. Wings hyaline, pubescent, 

 iridescent, veins brown, the areolet large, cubital and marginal cells 

 closed. Abdomen densely black, highly polished. 



"Described from nine specimens, labelled No. 12."), reared during 

 July, 1886, by Air. Albert Koebelc, from Rhodites polita Ashm. and 

 numerous other specimens labelled No. 3839, reared at the Department 

 during January and February, 1886, from the same gall collected in 

 Wyoming and Colorado," (W. H. Ashmead). 



I have not seen examples of this species. Doubtfully 

 Calif ornian. 



Periclistus obliquus Prov. 



Periclistus obliquus, Provancher, Addit. Hym. Quebec (1888), p. 397. 



"9 Long. .1(1 pec. D'un jaune sale avec une tache au metathorax, 



ambes posterieures, surtout a 1' cxtremite, et 1' abdomen en plus 

 ou moins i partie, noir. La face non striee. Les sillons parapsi- 



daux obliques, se rapprochant en arriere. La radiale ouverte en avant, 

 le radius atteignant le bord costal. 1' areolc incomplete. Abdomen 

 presque entierement noir; la tariere saillante, l' ecaille ventrale terminee 

 en pointe fine. Los Angeles (Coquillett). " (L. Provancher). 



I have not seen examples of this species. 



Periclistus piceus n. sp. 

 Female. Piceous black, mandibles, tegulae, femora, tibiae, tarsi 

 (except at tips), ovipositor and ovipositor sheath brown or brownish. 

 Head microscopically coriaceo-rcticulate and pubescent, densely 

 pubescent on face below antennas and cheeks, antenna? 12-segmented, 

 filiform, 1st segment obconic, 2nd subglobose, stout, 3rd segment as 

 long as 1 and 2 together. 3rd-6th subequal, following segments progres- 

 sively shorter, except the last, which is more than twice as long as penul- 

 timate. Pronotum and mesonotum faintly rugose, thickly clothed 

 with appressed, whitish hairs, pronotum wide in the middle, parapsidal 

 grooves on mesonotum incomplete, reaching less than half-way to 

 anterior margin, median longitudinal lines and lines over base of wings 

 inconspicuous, mesopleura smooth and shining, pubescent above and 

 beneath, scutellum deeply rugose, pubescent, basal fovea? small, cir- 

 cular, shallow, with smooth bottom, contiguous, separated by a carina, 

 metanotum pubescent. Abdomen smooth and shining, 2nd tergite 

 covering the greater part of the abdomen, following tergites very narrow, 

 posterior margin pubescent, ventral valve conspicuous, tuberculate, 



