266 PROCEEDINGS OF THE NATIONAL MUSEUM vol.88 



SPILOCHALCIS EXORNATA (Cresson) 



FiGUKES 8, h; 12, a 



Smicra exornata Ckesson, Trans. Amer. Ent. Soc, vol. 4, pp. 38, 50, 1872. — 

 Camekon, Biologia Centrali-Americana, Hymenoptera, vol. 1, p. 81, 1884. — 

 Howard, U. S. Dept. Agr. Bur. Eut. Bull. 5, p. 34, 1885.— Dalla Tokbe, Cata- 

 logus hymenopterorum, vol. 5, p. 376, 1898. — Schmiedeknecht, Genera insec- 

 torum, fasc. 97, p. 35, 1909. — Cbesson, The Cresson types of Hymenoptera, p. 

 75, 1916. 



This slender yellow-and-black species is most easily recognized by 

 its almost completely glabrous frons and its elongate, slender meta- 

 f emora, with only four teeth on the outer ventral margin (fig. 12, a) . 



Description. — Yellow or red with black markings; antennal flagel- 

 lum usually darker toward apex; mesopraescutum with a T-shaped 

 mark, mesal margins of lobes of mesoscutmn, axillae on mesal half, 

 mesoscutellum usually with a longitudinal mesal line, and apex, apices 

 of metacoxae, and three spots on metafemur, black. 



Female : 6-7 mm. Antennal scape strongly curved near base, apex 

 reaching level of ventral margin of anterior ocellus, pedicel slightly 

 less than one-half length of segment 4, ring segment one-sixth length 

 of 4, segment 4 one-eighth longer than 5, segments 5 to 10 equal, last 

 three segments indistinctly separated, penultimate segment shortest; 

 scrobe cavity with margin feebly carinate; interantennal projection 

 with a thin, anterior lamina; lateral carinae completely encircling 

 compound eyes; frons usually without punctures, sometimes with a 



Figure 9. — Male antennal structures of Chalcidini (all mesal aspect). 



a, Spilochalcis clora, new species: Scape. 



b, Spilochalcis phais, new species: Scape. 



c, Spilochalcis tanais, new species: Scape. 



d, Spilochalcis juxta (Cresson) : Scape. 



e, Spilochalcis arcana (Cresson): Scape. 

 /, Spilochalcis lecta (Cresson): Scape. 



g, Spilochalcis melana, new species: Scape. 

 h, Spilochalcis odoniotae Howard: Scape. 

 i, Spilochalcis subobsoleta (Cresson): Scape. 

 J, Spilochalcis pallipes (Smith): Scape, 

 fc, Spilochalcis dema, new species: Scape. 

 I, Spilochalcis flavopicta {Cresson): Scape and pedicel. 

 m, Spilochalcis side (Walker): Scape and pedicel. 

 n, Spilochalcis leptis, new species: Scape and pedicel. 

 0, Spilochalcis delumbis (Cresson) : Scape and pedicel. 

 p, Ceratosmicra dehilis (Say): Scape. 

 q, Ceratosmicra meteori, new name: Scape, 

 r, Ceratosmicra paya, new species: Scape. 

 s, Ceratosmicra immaculata (Cresson): Scape. 



t, Spilochalcis igneoides (Kirby): Pedicel, ring segment, and segment 4. 

 u, Spilochalcis mariae (Riley) : Pedicel, ring segment, and segment 4. 



