258 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 45. 



SYMPIESIS MASSASSOIT, new species. 



Female. — ^Length about 3 mm. Dark blue, with some greenish 

 reflections; antennae dark brown, the pedicel very short; first joint 

 of funicle hardly longer than second; the third and fourth, succes- 

 sively slightly shorter, the fourth distinctly longer than broad; 

 mesonotum, including axillae, reticulately rugose, in part so fine as to 

 almost resemble thimbleUke punctures; metanotum medially punc- 

 tured; propodeum with a median longitudinal carina; lateral carinae 

 indicated at rear; spiracles small; prepectus and anterior half of 

 mesopleurae with thimblelike punctures; wings hyaUne; coxae and 

 femora aeneous, with bluish tinges; knees, tibiae at bases and apices, 

 and tarsi, testaceous ; tibiae medially brown ; abdomen distinctly longer 

 than the head and thorax together. 



Male. — Length about 1.5 mm. Similar in sculpture to the female; 

 the funicle of the antennae four jointed, simple, the joints almost sub- 

 equal in length. 



Habitat. — Auburndale, Massachusetts. 



Specimens with the record from mines of Lithocolletes hamadryella 

 Clemens in swamp white oak leaves. 



This species resembles S. nigrifemora Ashmead, but in that species 

 the tibiae are entirely light colored. 



Tijpe.— Cat. No. 15096, U.S.N.M. 



SYMPIESIS MACULIPES, new species. 



Female. — Length about 2.25 mm. Dark blue green, scape testa- 

 ceous, rest of antennae brown; pedicel less than hali as long as first 

 joint of funicle; following joints of funicle successively decreasing in 

 length, the last only slightly longer than broad; mesonotum coarsely 

 reticulated, the axillae finely reticulately lineolated ; metanotum with 

 a median carinae and a few rugulae ; propodeum with a median carina, 

 a transverse and lateral ones, making it areolated; wings hyaline; 

 prepectus almost smooth, the lower part and margins somewhat rugu- 

 lose; coxae dark, the posterior ones greenish, femora except apices 

 black, rest of legs testaceous, the tibiae slightly more brownish ; abdo- 

 men not longer than head and thorax together. 



Male. — Length about 2 mm. Similar in structure to the female; 

 hind tibiae shghtly more brownish; funicle 4-jointed, the first three 

 branched, the branches reaching almost to tips of antennae; first 

 three joints of funicle short, successively slightly increasing in length, 

 the fourth fully as long as the first three combined; club shghtly 

 shorter than fourth joint of funicle. 



Habitat. — Auburndale, Massachusetts. 



Reared from mines of Lithocolletes hamadryella Clemens in leaves of 

 swamp white oak together with S. massassoit and ^S'. metacomet and 

 other parasites. 



