418 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



Tropidopria conica Fabr.. 



(PI. xviii, Fig. 1, 9.) 



Cynipa No. 33, GeofFr., Hist, des Ins., ii. 



Cynipa }>hragmitis Sclirank, En. No. 647; Vill. Ent., iil, p. 76, No. 21 (t). 



Ichneumon coniciis Fabr., Ent. Sys., ii, 188; Vill. Linn. Ent., iii, 212. 



Pailus conicus Jnr., Hymn., ]). 319; Spin. Ins. Lig. Fasc, iii, p. 166. 



Diapria conica Latr., Hist. Nat., xiii, 231; Gen. Crust, et Ins., iv, 37; ? j Nees, 

 Mon., II., 325, <? 2 ; »toph. 111. M., vii, Snppl. 10, PI. xi.vi, fig. 2, 

 $ ; Ratz., Ichn. d. Forst. Ins., in, 186 (Econ.); Thorns., Ofv., 1858, 

 p. 360, <? $ ; Marsh., Cat. Brit. Oxy., p. 112. 



S 9. Length, 2.5 to 3"'"'. Polished bhick; cheeks, collar, iiieta- 

 thorax and petiole woolly, the rest of the surface with some sparse 

 hairs; antennai, mandibles and legs rufous, the scape more or less rufo- 

 piceous, the five apical joiiits black, the first four funiclar joints sub- 

 cylindrical, a little thicker at tip than at base, the first the longest, one 

 and a half times longer than the i)edicel, the three following joints 

 equal or very slightly shortened, the fifth much thickened at tip, the 

 sixth, seventh, eighth, and ninth, oval inoniliform. tlie last cone-shaped, 

 slightly longer than the preceding. 



In the male the antennae are verticillate, the flagellar joints elon- 

 gate-cylindrical, the second outwardly emarginated at base. Scu- 

 tellum with a large deep fovea at base, sejiarated into two parts 

 by the medial carina that extends i)osteriorly to the tip of the scutel- 

 lum, the bottom with 3 or 4 raised lines ; laterally the scutellum is 

 densely pubescent and posteriorly there are some erect hairs. Meta- 

 thorax densely pubescent or woolly, with a raised prominence at base. 

 Tegulse black or piceous. Wings hyaline, ciliated. Abdomen longer 

 than the head and thorax together, couically pointed, the petiole pu- 

 bescent, finely rugose, with two short cariuse at base above; second 

 segment very long, with two foveolfe^at base; third and fifth segments 

 about equal in length, twice»as long as the fourth; sixth produced into 

 a conic point, about as long as the third, fourth, and fifth together, the 

 ovipositor slightly projecting from its tip. 



Habitat. — England, Europe, and North America. 



Specimens in National Museum and Coll. Ashmead. 



This European species is now evidently widely distributed ih North 

 America, and has probably been imported with its Syrphid host, Uris- 

 tolls tenax. I have specimens from Long Island and Albany, N.Y.; 

 Ottawa, Canada; Arlington, Va.; Washington, D. C; and Marquette, 

 Mich. It is recorded by Kirchner (Cat. Hym. Europae, p. 204) as para- 

 sitic on Eristalis tenax, and I have seen specimens in the Berlin Mu- 

 seum reared from this insect, while Mr. L. O. Howard informs me 

 Dr. Liutner has reared it from this same Dipteron at Albany, N. Y. 



Tropidopria carinata Thorns. 

 Diapria carinata Thorns., Ofv., 1858, p. 361. 



? . Length, 2.5" "". Polished black ; cheeks, collar, metapleura, and 

 petiole posteriorly, woolly; rest of its surface with long, sparse hairs; 



