SERPHOID AND CHALCIDOID PARASITES OF THE HESSIAN FLY 129 



much broader than long, finely reticulate-punctate, the parapsidal grooves com- 

 plete, the median lobe with 4 long hairs and the scapulae with 2 each; 

 scutellum as long as mesoscutum or a little longer and with similar but slightly 

 weaker sculpture, with one pair of long setae, and with a median longitudinal 

 groove ; axillae finely sculptured, broadly separated, and each with one seta ; 

 propodeum half as long as scutellum, narrowed into a short and broad neck, 

 smooth except for the two narrow sculptured areas on each side of the neck ; 

 propleura, prepectus, and anterior margin of mesepisternum weakly sculptured, 

 remainder of pleura and sternum polished. Legs not thickened, tarsi 4-jointed, 

 the basal joint of hind tarsi not longer than the second joint ; hind tibiae with 

 one apical spur. Wings fully developed; fore wing extending to apex of 



Figure 29. 



-Horismenus tea-anus (Giranlt) : A, Adult female ; B, antenna of female 

 C, antenna of male. A, X 24. 



abdomen, a little less than two and one half times as long as broad; sub- 

 marginal vein half as long as marginal; stigmal vein sessile and very short; 

 postmarginal vein rarely a little longer than stigmal; marginal cilia short; 

 submarginal vein dorsally with two setae. Abdomen ovate, as broad as thorax 

 and about as long as head and thorax or a little shorter, distinctly petiolate, 

 the petiole about as long as broad, and finely punctate, with a smooth median 

 longitudinal carina dorsally ; first tergite beyond the petiole smooth and polished 

 except for a finely reticulated transverse band between the middle and apex, 



6685°— 33 9 



