398 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



Spilomicrus atriclavus, isp. nov. 



9 . Leiigtli, 3""". Polished, black, impunetxired, and agreeing closely 

 with A. rt>'>»^^/?/.v but diflfers as follows: the five tenninal Joints of an- 

 tennnB are l)lack, and more abriii)tly separated from the fiinicle, the 

 first four being transverse-quadrate, about twice as broad as long; the 

 scapuhe are without a grooved line; there is a row of (5 small punc- 

 tures at apex of scutcllum; the wings are subfuscous, while the legs 

 are more distinctly rufous. 



Habitat. — Ottawa, Canada. 



Type in Coll. Ashmead. 



Described from a single specimen received from Mr. W. Hague 

 Harrington. 



Spilomicrus flavicornis, sp. uov. 



(PI. XVI, Fig. 7 a, $ anteuiia. ) 



$ . Length, 1.4""". Polished black ; head twice as wide as thick through 

 antero-posteriorly, the cheeks oblique. Mandibles and palpi pale. Au- 

 tennie 14-Jointed, honey-yellow, about as long as the body; scape as 

 long as the anterior femora, excluding the trochanters: pedicel longer 

 than thick; first and second tiagellar joints equal, longer than any of 

 tWe following; joints beyond to the last moniliform, only slightly longer 

 than thick, the last joint very little Ion ger thiin the penultimate. Thorax 

 smooth, with distinct but delicate mesonotal furrows. Pronotum with 

 an imjjression at sides just in front of the teguhie. Scutellum with the 

 fovea at base separated into two parts by a delicate carina. Metapleura 

 finely rugose, scarcely pubescent. Teguhe rufous. Wings hyaline, 

 pubescent, ciliated, the veins yellowish. Legs, including- coxae, honey- 

 yellow. Abdomen oval, polished, the petiole nearly thrice as long as 

 thick, finely sculptured, with a longitudinal furrow above toward the 

 sides, and very finely, sparsely pubescent. 



Habitat. — Arlington, Va. 



Types in National Museum and Coll. Ashmead. 



Described from specinuMis taken by Mr. Theo. Pergande, July 13, 1884. 

 Spilomicrus atropetiolatus Asbiii. 

 Ismants afropetiolatiis Aslim., Bull. No. 1 Col. Biol. As.soc, p. 11. 



9 . Length, 2'"'". Black polished, with some long, scattered, sparse, 

 grayish pubescence, the face, as well as the metapleura and petiole, 

 more densely pubescent. Face prominent. Eyes bare. Antenna' 13- 

 jointed, black, pubescent, the scape very long, slender, a little more 

 than twice as long as the third joint; the pedicel short, much less than 

 half as long- as the third, narrowed at base, the third and fourtli joints 

 of about an e(|ual liMigth, the littli joint and joints beyond slightly shorter 

 than tlie tliird, and all narrowed at base and of about an equal length. 

 Thorax smooth, without grooves. Mesojdeura smooth, bare, with a 

 slight furrow a little below the middle, more distinct anteriorly and 



