246 PROCEEDINGS OF THE NATIONAL MUSEUM vol.88 



CHALCIS DIVISA (Walker) 



FiGUKEs 7, h; 8, a; 14, a 



Smiera divisa Walkek, Journ. Ent., vol. 1, p. 178, 1861. 



Smicra divisa (Walker) Walkeb, Notes on Chalcidiae, p. 51, 1871. — Cbesson, 

 Trans. Amer. Ent. Soc, vol. 4, p. 55, 1872. — Camekon, Biologia Centrali- 

 Americana, Hymenoptera, vol. 1, p. 96, 1884. — Hovv^abd, U. S. Dept. Agr. 

 Bur. Ent. Bull. 5, p. 34, 1885. — Dalla Tokre, Catalogus hymenopterorum 

 . . ., vol. 5, p. 376, 1898. — Schmiedeknecht, Genera insectorum, fasc. 97, 

 p. 34, 1909. 



This species is most readily recognized in the female by the trans- 

 verse yellow stripe at the posterior margin of the dorsum of the 

 pronotmn and by the large basal tooth of the metafemur; the male 

 is recognized by its long, slender, yellow petiole and the wide malar 

 space. 



Description. — Black with yellow markings; frons, except small 

 area dorsad of clypeus, posterior dorsal margin of pronotum, tegulae, 

 usually apices of profemora and mesofemora, posterolateral angles 

 of mesoscutellum, base and angled dorsal and apical stripe of meta- 

 f emora, basal half of metatibia, and petiole, yellow ; most of anterior 

 and mesolegs, apices of metacoxae, disk and apex of metafemora, and 

 gaster, reddish brown. 



Female: 7-8 mm. Antennae inserted ventrad of center of frons, 

 scape exceeding level of posterior ocelli by one-quarter its length, ped- 

 icel one-third and ring segment one-sixth length of segment 4, segment 

 13 minute; margin of scrobe cavity acarinate laterad, strong trans- 

 verse carinae present in scrobe cavity just ventral to anterior ocellus ; 

 interantennal projection with a distinct mesal carina ; wddth of malar 

 space three-fifths height of compound eye; frontogenal suture obso- 

 lete ; combined widths of compound eyes two-thirds interocular space 

 at level of antennal bases; posterior carina of head extending from 

 base of mandible to middle of posterior margin of compound eye 

 (fig. 7, A) ; head, viewed from dorsal aspect, strongly transverse with 

 compound eyes protruding. 



Figure 7. — Heads of Chalcidini. 



a, Spilochalcis xanthostigma (Dalman): Anterior aspect. {AT, anterior 

 tentorial pit; CE, compound eye; CI, clypeus; FGS, frontogenal suture; 

 FP, frontal tentorial pit; IP, interantennal projection; MS, malar space; 

 Oc, ocellus; SC, scrobe cavity; W, interocellar space; X, width of com- 

 pound eye; Y, height of compound eye; Z, interocular space.) 

 h, c, Dirhinus texanus (Ashmead): b. Dorsal aspect; c, lateral aspect. 



d, Haltichella sp.: Anterior aspect. 



e, Spilochalcis flavopicta (Cresson) : Anterior aspect. 



/, j, Spilochalcis femorata (Fabricius): /, Anterior aspect; j, lateral aspect. 

 g, Spilochalcis jvxta (Cresson) : Lateral aspect. 

 h, Chalcis divisa (Walker) : I-ateral aspect. 

 i, Chalcis lasia, new species: Lateral aspect. 



