320 PROCEEDINGS OF THE NATIONAL MUSEUM vol.88 



The allotype is labeled "variety" and may eventually be shown to 

 represent another species. 



This species is known to me only from the types, but several refer- 

 ences to it have appeared in the North American literature. I have 

 not located the material on which these records were based. Vickery 

 records several experiments performed with this species, and gives a 

 partial life history. /S. pollens is, like the other members of this genus, 

 a pupal parasite ; Vickery described the oviposition in pupae of Apan- 

 teles marginive7itns (Cresson). The males are produced partheno- 

 genetically. 



Hosts. — Meteorus laphygmae Viereck, Rogas laphygmae Viereck, 

 Apanteles marginiventris (Cresson) (Hymenoptera, Braconidae) 

 [Vickery] . 



Distribution. — Cuba, 3 females, 1 male (types). 



SPILOCHALCIS XANTHA, new species 



This species agrees with S. subohsoletcn (Cresson) in having the an- 

 tennal scape short, the flagellum stout, the head, from the dorsal aspect, 

 one-half as long as wide, and the basal tooth of the metaf emur rounded 

 instead of acute. It differs from that species in having the scrobe 

 cavity shallow instead of deep, and the outer dorsal surface of the 

 metacoxa glabrous instead of shagreened. Moreover, it is almost 

 entirely yellow, while S. subohsoleta is mostly black. 



Description. — Yellow with brown or black markings; usually an- 

 tennal flagellum, occiput, variable short, transverse mark at anterior 

 margin and longitudinal mesal stripe of mesopraescutum, anteromesal 

 areas of lobes of mesoscutum, anterior margins and posterolateral 

 angles of axillae, usually a narrow longitudinal mesal stripe on meso- 

 scutellum, variable marks on mesopleuron, sometimes a vague, round 

 mark on dorsolateral surface of metacoxae, metafemoral teeth, variable 

 basal stains on propodeum, usually most of gaster, black or brown. 



Female : 3.5-4 mm. Antennal scape short, apex not quite attaining 

 level of ventral margin of anterior ocellus, pedicel equal in length to 

 segment 6, ring segment with anterior margin oblique instead of 

 transverse so that fourth antennal segment is narrower on mesal side 

 than on outer side, segment 5 slightly shorter than 6, following seg- 

 ments somewhat variable but all subequal; scrobe cavity shallow, 

 margin completely acarinate; inter antennal projection produced 

 slightly cephalad, provided with a faint carina near apex; frons 

 lightly shagreened and covered by minute, slightly irregular carinae, 

 these reticulations transverse ventrad of antennal bases, but laterad 

 of scrobe cavity usually directed obliquely; frons with a few short, 

 scattered setae; frontal tentorial pits located at level of antennal 

 bases; width of malar space slightly less than one-quarter height of 



