308 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



Polygnotus striaticeps, sj). nov. 



$ 9. Lenjith, 0.00 to 1.20""". Black, vsliiuiiig; liead transverse, a 

 little more than twice as Avide as thick aiitero-posteriorly, and any,ularly 

 produced over the eye; vertex impressed at the middle with strong- 

 transverse stritv occnpying the whole occi])utand extending forward as 

 far as the front ocellus; face smooth, ^landiblcs black. AntenmelO- 

 jointed, black; ix'dicel about as long- as the first and second fnniclar 

 joints united; joint 1 of fnnicle very small, 2 and 3 equal, very slightly 

 longer than thick, 4 as long as thick at tip, narrowed toward base; 

 club -A-jointed, the joints, except the last, a little longer than thick, the 

 last slightly longer than the preceding, cone-shai)ed; in <? the second 

 funiclar joint is curved, dilated and truncate at tip; the club G-joiuted, 

 slightly thickened towards the tip. the joints oval-moniliform, 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 tlie length of the mesonotnm posteriorly. Scutellum high, 

 transversely, convex. Metanotum -with 2 carina* on the disk; meta- 

 pleurabare, aciculated in the 9 , sericeous in i . Tegula' black. Wings 

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

 in 9 as Jong as the head and thorax togethei', shorter in the 6 , tlie 

 petiole striated, the second segment striated at base, the striae extend- 

 ing along the sides to the middle of tlie segment. 



Habitat. — San Diego and TiOs Angeles County, Cal. 



T^q^es in National Museum. 



Described from several sjiecimens, reared in July, 1880, by A. Koebele, 

 from a Cecidomyiid gall on an eveigreen shrub {liigelovid or Artcini.sia 

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

 labeled as having been reared from A.sjyidiotus on liUidocia, by the 

 same observer at San Diego, Cal. 



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

 erroneous, as -\ve know positively no Platygasterid is parasitic on 

 Coccids. 



Polygnotus atriplicis, sp. nov. 



$ 9. Length, 1 to 1.40""". Black, i)()lished; vertex posteriorly 

 transversely aciculated, the face smooth. Mandibles piceous. Anten- 

 na' 10 jointed, black; pedicel as long as the lirst and second funiclar 

 joints together, a little pah^ at tip; lirst i'uniclar joint small, pale; second 

 and third cylindric, the third shorter than the second ; club 5-jointed, 

 the lirst joint a little narroAver than the following, contracted toward 

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

 wardly at tips subserrate, tlie last cone-shaped, longer than th(^ pre- 

 ceding. Thorax ovoid, ])olished, the mesonotal furrows indicated pos- 

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

 transversely high, slightly pubescent posteriorly. MetaiJleura seri- 



