.7. CHESTKR BRADLEY. 



189 



1824. Evania (orico/or Say, Keat. Nanat. Exped., ii, App. p. 320. 



1829. Evania flavicornis Curtis, Brit. Entom., vi, p. 257. 



1830. Evania ciibx Eicliwald, Zool. Spec, ii, p. 214. 



1840. Evania desjardinsii Blanchard, Hist. Anat. Insect., iii, p. 299, fig. 74. 



1841. Evania affinis Giiilloii, Ann. Soc. Ent. France, x, p. 311. 



% , 9 • — Entirely black. Covered with a very fine and inconspicuous griseous 

 pubescence. Face convex below tlie antennse, smooth, a few punctulations scat- 

 tered at considerable and irregular distances; antennae inserted close together in 

 a broad but shallow basin, with an abrupt but scarcely ridged front margin, ex- 

 tending laterally almost to the eyes and posteriorly without definite limit to in 

 front of the ocelli; vertex narrow; middle ocellus transverse; temples narrow 

 above, wider towards the base of the eyes; eyes removed by more than half 

 their length from the mandibles; antennae long, filiform, somewhat thickened 

 in the female iFig. 56) ; average measurements as below: 



Thorax above with a few round pits scattered sparingly over it, larger and 

 better defined than those similarly scattered over the face; parapsidal grooves 

 clearly defined; anterior grooves short; venter and sides of the thorax with 

 larger and more deeply impressed round pits, distant from each other, but grow- 

 ing denser posteriorly until on the propodeum they merge into coarse reticula- 

 tion : metanotum sunk in a deep and narrow transverse groove; furcula with 

 divergent tynes. 



Middle coxa- widely separated ; posterior coxse subapproximate, sparingly, 

 finely, punctured ; posterior tibia with the longer spur about one-third the length 

 of the metatarsus (Fig. 60) ; the latter about the length of the succeeding two 

 joints united ; claws large, two-thirds as long as the fourth tarsal joint, toothed, 

 the rays slender, placed at acute angles with each other, the apical one much the 

 longer (Fig. 44). Wings hyaline (Fig. 76), the free part of R4 wanting, some- 

 times a faint line indicating its position ; R:j obtusely angled beyond R^ : the 

 base of Mj-fo usually more or less atrophied ; hind wings without'un open cos- 

 tal margin. 



Abdomen of the male oval, two-thirds as broad as long; the petiole nearly as 

 long as the remaining part; the second segment but little larger than the first of 

 the four succeeding fully exposed segments which diminish in breadth towards 

 the apex ; abdomen of the female an isosceles, almost equilateral triangle with 

 the ai)ex caudad and the dorsal hypothenuse somewhat convex (Fig. 18) ; the 

 petiole le.ss than half the length of the dorsal hypothenuse; the second segment 

 but little broader than the first of the three following fully exposed segments; 

 the apical segment produced into a short dorso-candad [)rojecting process con- 

 cealing the ovipositor. 



■'The reference given in Schletterer and Dalla Torre to E. flavicornis Oliv., 

 Encyc. .Meth. Insect., vi, p. 453, is not to be found, and sliould evidently be 

 maciilata. 



TRANS. AM. ENT. SOC. XXXIV. 



APRIL. 1908. 



