186 PROCEEDINGS OF THE NATIONAL MUSEUM. vor.. 56. 



pin-punctures few, scattered, and shallow; mesoscutum finely 

 reticulate with the reticulations somewhat lengthened transversely 

 along the anterior margin; reticulations of the axillae and scutellum 

 not much coarser but more deeply impressed than those on the 

 scutum; reticulations on the first tergite of abdomen except across 

 the base fine and uniform and but little coarser than those on the 

 scutum. Head with a very fine and not i:)rominent pubescence, the 

 thorax apparently nearly bare, except for the usual appressed pubes- 

 cence on the m.etapleura and hind coxae. Length of body, (2.22 to) 

 2.26; length of head, 0.73; width of head, 0.73; width of vertexj 

 0.235; length of eye, 0.49; width of eye, 0.29; length of antenna, 1.29 ; 

 width of mesoscutum, 0.71; length of fore-wing, 2.00; width of fore- 

 wing, 0.705 mm. 



Head auburn (R.), the occiput more blackish, the vertex sometim.es 

 along the orbits opposite the median ocellus and the dorsal occipital 

 margin suffused with yellowish: thorax and abdom.en nearly black, 

 the mesopleura, hovrever, v.'ith a distinct brown tinge; prepectal 

 plates transparent whitish, the collar of pronotum broadly v.'hitish 

 changing to yellowish on the propleura; posterior lateral corners of 

 the mesoscutum primuline yellow (K.) with the anterior margin o 

 the marldngs convex; tegulae white, with the apical, outer corner 

 fuscous. Antennae nearl}' uniformly brown, or about bister (R.), 

 the pedicel a little more yellowish, and the base of the scape Jiiore 

 nearlj' concolorous with the face. Front coxae and tarsi, middle 

 coxae, and hind legs blaciiish brown or about concolorous v.'ith the 

 mesopleura; the middle tibiae and tarsi a little paler, especially 

 beneath; front tibiae pale brov^n, the front and middle femora yel- 

 lovv^ish brown, and the tibial spur a little more yellowish. Wings 

 with a large brown spot beneath and beyond the stigmal vein, and 

 becoiiiing fainter as it approaches the opposite margin. 



Redescribed from two females from Sweden (C. H. Boheman). 



6. ISODROMUS ATRIVENTKIS Ashinead. 



Plate 41. fig. 16. 



Encyrtus puncticeps Howauo (part"), Bull. 5 (old series), Bur. Ent., U. S. Dept. 



Agric, 1885, p. 14. 

 Isodromus atriventris Ashmead, Proc. U. S. Nat. Mus., vol. 22, 1900, p. 379. 



Female. — Head somewhat wider than long, a little thicker fronto- 

 occipitally than in niger; in side view the facial and dorsal surfaces 

 about equal in length, their planes meeting in a little more than a 

 right angle; the dorsal surface a little less convex than in niger; 

 frontovertex nearly two and a half times as long as wide, the ocelli 

 Yery nearh-^ in an equilateral triangle, the posterior pair almost touch- 

 ing the eye margins, the median one situated a little behind the center 

 of the frontovertex, the dorsal orbits of the eyes very slightly divergent 



