BRUES: PARASITIC HYMENOPTERA. 



85 



Mesochorus carceratus, sp. nov. (Fig. 65.) 



Female. Length 6 mm. Black, the abdomen except at the base, more or 

 less brownish or ferruginous. Antennae piceous, short and stout, the basal 

 flagellar joints only about two times as long as thick; those beyond the middle 

 quadrate. Metanotum regularly 

 areolated, the basal and middle 

 lateral areas completely separated. 

 Basal segment of abdomen black; 

 the second segment pale ferruginous ; 

 following growing gradually darker 

 to the tip which is fuscous. Ovi- 

 positor long, nearly as long as the 

 body, but this seems to be due in 

 great part to pressure, all the termi- 

 nal segments being strongly ex- 

 truded. Legs black, the knees 

 lighter. Wings subhyaline, stigma 

 and veins piceous; the former 

 rather broad, subtriangular; mar- 

 ginal cell short, the radius sharply 



angled, its second section straight, twice as long as the first. Areolet rather 

 large, obliquely rhomboidal and broadly sessile above. Submedian cell very 

 slightly longer than the median; discocubital cell shorter than usual. 



Described from one specimen sent by Professor Cockerell, No. A15. 

 Type in the Amer. Mus. Nat. Hist. 



Mesochorus abolitus, sp. nov. (Fig. 66.) 



^ 





Fig. 65. — Mesochorus carceratus, 

 Type. 



sp. nov . 



- 





-v. 



Sex? Length probably 8 or 10 mm. 

 A specimen only in part preserved, but 

 with both anterior wings in good condi- 

 tion. The color of the head and thorax 

 is dark, with the abdomen lighter and 

 distinctly banded with blackish on each 

 segment anteriorly. Antennae rather 

 long, the joints toward the apex of the 

 flagellum broad, quadrate or slightly 

 transverse. The wings are hyaline, 

 with fuscous stigma and veins; stigma 

 lanceolate, but nevertheless rather 

 broad, with its inferior margin distinctly 

 angled; marginal cell long, the second 

 section of the radius straight, less than 



twice as long as the first. Areolet with a long petiole, obliquely rhomboidal; 



discocubital cell long; submedian cell considerably longer than the median. 





Fig. 66. — Mesochorus abolitus, sp. nov. 

 Type. 



