398 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



Spllomicrus atriclavus. n]i. nov. 



9 . Iieii};tli,3 Polislicil, l)liuk,imimintiin'(l, iiiul a;i:reoiiifj closely 



with -i.^(r//j<f^rv but (litltTS as follows: tlir live tcrniiiial joints of aii- 

 tt'iinn' are black, anil more abruptly separated fnnn tlie fmiicle, the 

 tirst four beiiij; traiisverse-«iua(lrate, about twice as broad as lonj;; the 

 scapula' are without a ;;roove«l line; then' is a row of <i small punc- 

 tuK'8 at apex of scutclbiMi; the wiufjs are subfuscous, while the le^s 

 are more distinctly rufous. 



IIAHITAT. — Ottawa, Can jula. 



Type in <'oll. Ashmead. 



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

 Harrington. 



Spilomicrua flavicornis, »]». uov. 

 ( I'l. XVI, Fijj. 7 a, S aiitt-niui. ) 



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



antero posteriorly, the cheeks obliciue. Mandibles and palpi pale. An- 

 tenna* ll-jointed, honey -yellow, about as long as the body; scape as 

 long as the anterior femora, excluding tlie trochanters; pedicel longer 

 than thick; first and second liagellar Joints equal, longer than any of 

 the following; joints beyond to the last mouilifoim, only slightly longer 

 than thick, the last joint very little longer than the peuultinmte. Thorax 

 smooth, with distinct but delicate mesonotal furrows. Proiujlum with 

 an imi)ressi(m at sides just in front of the teguhe. Hcutellum with the 

 fovea at base sejKirated into two jtarts by a delicate carina. Metapleura 

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

 pubescent, ciliated, the veins yellowish. Legs, including coxa', 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 imbesceut. 



Habitat. — Arlingtcui, Va. 



Types in National Museum and Coll. Ashnu'ad. 



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

 Spilomicrus atropetiolatus A^hiii. 

 iHmarit.i atropetioJatuH AhIuu., Bull. No. 1 Col. Biol. Assoc, p. 11. 



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

 giayish 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 fourth joints 

 of about an equal length, the fifth joint and joints beycmd slightly shorter 

 than the third, and all narrowed at base and of about an equal length. 

 Thorax snuK)th, without grooves. Mesopleura smooth, bare, with a 

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



