THE TRIBE CHALCIDINI BURKS 291 



The femorata Group 



The femorata group is predominantly tropical but includes one very 

 common species in our region, S. mariae (Kiley). In all species of 

 this group the antennal scape is long, and the flagellum is usually 

 slender. The scrobe cavity is either deep or shallow; the frons is 

 always slightly produced anteriorly just ventrad of the antennal bases. 

 All the species of this group have the metafemoral teeth minute and 

 closely set, but the basal tooth is often considerably larger than the 

 following ones; all species are yellow or red with relatively small 

 darker markings. 



KEY TO SPECIES OF THE FEMORATA GROUP 



1. Female, ninth abdominal steruite concealed, antennal scape 



slender 2 



Male, ninth abdominal sternite exposed, antennal scape broad 8 



2. Head, from dorsal aspect, one-half as long as wide, apex of 



antennal scape reaching only to level of posterior ocelli 3 



Head transverse, from dorsal aspect much less than one-half 

 as long as wide ; apex of antennal scape markedly exceeding 

 level of posterior ocelli 5 



3. Metepisternum entirely glabrous, stigmal vein of forewing 



rounded at apex (fig. 10, li) delicata (p. 292) 



Metepisternum punctured, stigmal vein of forevping angled at 



apex (fig. 10, k) 4 



4. Width of head much greater than maximum width of dorsum 



of thorax ; spiracular openings on propodeum wider dorsad 



than ventrad elachis (p. 294) 



Width of head equal to maximum width of dorsum of thorax ; 

 spiracular openings on propodeum equal in width dorsad and 

 ventrad hirtifemora (p. 295) 



5. Surface of mesopraescutum and scutum provided only with 



punctures femorata (p. 297) 



Surface of mesopraescutum and scutum provided both with 

 punctures and carinae, the carinae on mesopraescutum trans- 

 verse, those on lobes of mesoscutum directed obliquely 

 cephalad from posteromesal angles 6 



6. Metafemur with a small inner tooth ; a brown spot surrounding 



stigmal vein ; mesopraescutum always with a median black 

 line, this line usually broader at anterior than at posterior 

 margin; anterior lamina of pronotum slightly incised near 



dorsolateral angle igneoides (p. 301) 



Not having that combination of characters 7 



7. Strong lateral carinae present on petiole, and venter of petiole 



usually slightly rugose ; metacoxae always with a black stripe 

 on outer dorsal surface extending almost from base to apex. 



Tnariae (p. 303) 

 Petiole either without lateral carinae or with faint ones near 

 base, and venter of petiole smooth ; metacoxae with a dark 

 spot on outer dorsal surface, this spot not reaching apex of 

 coxa phais (p. 307) 



