308 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



Polygnotus striaticeps, sj). nov. 



S 9. Length, O.GO to 1.20""". Bhu-k, shining; liea.i transverse, a 

 little more than twiee us wide as thick anteroposteriorly, and angnlarly 

 prodmed over the eye; vertex iminessed at the middle witli strong 

 transverse stria' ocenpyiiig the whoh; occiput and extending forward as 

 far as the front o<'elhis; face smooth. ]\Iandibh's black. Antenuit 10- 

 jointed, black; pcdii-d about as long as the lirst and second funiclar 

 joints united; joint 1 of lunicle very small, li and .'> equal, very slightly 

 longer than thick, 4 ;vs long as thick at tij), narrowed toward base; 

 club 4-jointed, the j<)ints, except the last, a little longer than thick, the 

 last slightly longer than tlu' preceding, cone-shajied; in ^ the second 

 fuuiclar joint is curved, dilated and truncate at tip; the club 0-jointed, 

 slightly thickened towards the tip, the joints oval nioniliform, hairy, 

 slightly pedicellate, the last joint nearly twice as long as the preced- 

 ing. Thorax ovoid, highly polished, the mesonotal furrows distinct for 

 nearly half the length of the mesonotum posteriorly. Scutellum high, 

 transversely, (convex. Metanotum Avith 2 carinas on the disk; meta- 

 pleurr bare, aciculated in the $ , sericeous in S . Tegulic black. Wings 

 hyaline. Legs black, the anterior and middle tarsi white. Abdomen 

 in 9 as Imig as the head and thorax together, shoi-ter in the 6 , the 

 petiole striated, the second segment striated at base, the stria; extend- 

 ing along the sides to the middle of the segnuMit. 



Habitat. — !San Diego and Los Angeles County, Cal. ■ 



Tyi)es in National Museum. 



Described fiom several specimens, reared in July, 188<5, by A. Koebele, 

 from aCecidomyiid gall on an evergreen shrub [Bigehvia or Artemima 

 sp.) taken at Xewhall, Los Angeles County, Cal.; also one female, 

 labeled as having been reared from AHpUliotua on Biydovia^ by the 

 same observer at ^an Diego, Cal. 



It is scarcely necessary for me to state that this latter statement is 

 erroneous, as we know positively no Platygasterid is parasitic ou 

 Coccids. * 



Polygnotus atriplicis, sj). uov. 



$ 9. Length, 1 to 1.40"'. Black, polished; vertex posteriorly 

 transversely aciculated, the face smooth. Mandibles ]nceous. Anteu- 

 nse lOjointed, black; pedicel as h)ng as the first and second funiclar 

 joints together, a little pale at tip;firstfuni(!lar joint small, pale; second 

 and third cylindric, the third shorter than, the second; club r»-jointed, 

 the first joint a little narrt)wer than the following, contracted toward 

 the base, the other joints to the last longer than thick, cup-shaped, out- 

 wardly at tips subserrate, the last cone-shaped, longer than the pre- 

 ceding. Thorax ovoid, ]>o]ished, the mesonotal furrows indicated pos- 

 teriorly for more than half the length of the mesonotum. Scutellum 

 transversely high, slightly pubescent i)osteriorly. Metapleura seri- 



