1888.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 651 

 Dacnusa flavocincta n. sp. 



Male.— Length, 2 mm . Polished black ; legs reddish-yellow ; tarsi and 

 posterior tibire, dusky; the 2d abdominal segment above, except the 

 extreme apical margin, brownish yellow, the following segments piceo- 

 black. The antennae are entirely black, nearly twice the length of the 

 insect, 36-joiuted ; the 1st joint of the flagellum is two-thirds longer than 

 the 2d, the following joints about twice as long as wide; thorax ovoid, 

 perfectly smooth and without grooves; mesopleura smooth; metatho- 

 rax minutely rugose, pubescent; abdomen ovate, the 1st segment aci- 

 culated and with a longitudinal keel down the center. Wings hyaline ; 

 stigma and veins brown; the venation is exactly as in D.confusa, only 

 the stigma is slightly narrower, and the 1st branch of the radius is as 

 long as the transverse cubital nervure. 



Habitat. — Anderson ville, Tennessee. 



Described from a single specimen, labeled No. 3084 01 , reared from a 

 dipterous leaf-miner on wheat. Sent to the Department by Mr. J. K. P. 

 Wallace. 



SYNALDIS Forster. 

 Synaldis ulmicola n. sp. 



Female. — Length, l-f mm . Black, polished; legs, including the coxae, 

 flavotestaceous ; the 1st abdominal segment and venter, piceous. The 

 head is transverse, broader than the thorax, face hairy; antennas 15- 

 jointed, moniliform beyond the 1st joint of the flagellum, the 1st flagel- 

 lar joint cylindrical and much thinner than the following joints; thorax 

 ovoid, smooth, polished, without grooves and with some sparse long 

 hairs on the disk; mesopleura with a large crenulate fovea across the 

 disk; metathorax minutely rugose; abdomen ovate, subsessile, de- 

 pressed above, subcompressed below, the 1st segment aciculated ; ovi- 

 positor very slightly exserted, black. Wings hyaline, iridescent ; veins 

 pale brown ; the 1st submarginal cell is very large, nearly three times 

 as long as the 1st discoidai, the 1st branch of the radius being nearly 

 twice as long as the basal nervure; other characters as in Dacnusa. 



Habitat. — St. Louis, Missouri. 



Described from a single specimen, labeled No. 1007P , reared Octo- 

 ber 14, 1878, from a dipterous larva found on elm. Collection C. V. 

 Riley. 



This Forsterian genus is not included in Mr. Marshall's Monograph 

 of British Braeonidse, but it appears to me to be a valid one, readily 

 separated from Dacnusa by the shape of the 2nd submarginal cell and 

 the autennal characters. 



CCELINIUS Nees. 

 Ccelinius longulus n. sp. 



Tlffl/e.— Length, 5 mm . Black, smooth, polished; palpi dusky; the an- 

 tenna?,, except the scape and 2d joint beneath, black ; legs testaceous, 

 the coxa? and the 1st joint of the trochanters, piceous black ; all tarsi, 



