ART. 15«. REVISION OF SUBFAMILY PLATYGASTERIKAE FOUTS. 49 



joint six, as long as joints five and six or three and four united; three 

 and four equally wide, narrower than two; three a little shorter than 

 four; five and six subequal, a little longer than wide, wider than six; 

 ten as long and as wide as the pedicel, conical, pointed apically; 

 flagellum longer than the thorax; thorax two-thirds as wide as long, 

 convex above, higher than wide; pronotum finely shagreen ed later- 

 ally; mesonotum polished, finely shagreened anteriorly; notauli com- 

 plete, the median lode narrowly rounded posteriorly; scutellum 

 circular, polished, finely shagreened on the sides, sparsely pubescent ; 

 abdomen the length of the last two segments longer than the head 

 and thorax united, broadly elliptical, wider than the thorax, twice as 

 long as wide; median area on first tergite quadrate, without sculpture, 

 the ridges high and sharp; second tergite slightly longer than wide; 

 narrowed anteriorly, the sides curved, not striate basally ; foveae short, 

 not distinctly striate; between the foveae not sculptured; tergites three 

 to six unsculptured, united three-fifths the length of the second; six 

 as wide as long, sharply pointed apically; wings brownish as in fusci- 

 pennis Fonts, extending the length of the last four segments united 

 past the apex of the abdomen. Body entirel;^ dull rufous, the tarsi 

 lighter. 



Male. — Length 1.28 mm. Pedicel twice as long as wide, as wide as 

 joint five, but longer, as long as ten; three a little longer than wide, 

 less than half as wide as the pedicel, closely joined to four which 

 is wider and shorter than the pedicel, widened apically, the sides 

 curved, not emarginate; joints five to nine a little longer than wide, 

 the ends rounded; pronotum not so extensively shagreened as in the 

 female; abdomen long, egg-shaped, as long as the head and thorax 

 united, as wide as the thorax, not quite twice as long as wide, convex 

 above and below; segments three to seven united one-third as long as 

 the second ; wings brownish, extending two-thirds the length of the sec- 

 ond tergite past the apex of the abdomen. Legs somewhat lighter 

 colored than in the female. 



Type locality. — Martinez, California. 



Type, and Allotype. —Cat. No. 25433, U.S.N.M. Paratype in Col- 

 lection Fouts. 



Described from two females and one male from Martinez, Cali- 

 fornia, reared by Mr. H. W. Turner, January 6-23, 1863, from flower 

 bud galls of Isosoma {?) on Baccharis pilvlaris. 



The specimens are labled in T. Pergande's handwriting and the 

 following is an extract from the notes on his cage 2964: 



Jan. 2, '83 Rec. to-day from H. W. Turner, Martinez, Calif., a lot of galls, which 

 are the deformation of flower buds of Baccharis pilularis, produced as it seems by a 

 apecie.« of Isosoma, as no Cecid. larvae were found in all which were examined; how- 

 ever, they may prove to be only parasites. Several of the single galls are mostly grown 



