132 TRANS. ST. I.OUIS ACAD. SCIENCE. 



The (^, which was unknown to Brulle, only differs in the entire flagel- 

 lum except the extreme tip being rufous beneath, in its ist joint being 

 only twice as long as wide, and in the stigma being entirely yellowish- 

 rufous, the bounding veins black. Length cf 'Sg-'Sg inch. Front wing cJT 

 •25--33 inch. 



Two c? ; one 2. Closely allied to, and perhaps identical with, 

 yusctcornt's, Brulle (Guadeloupe). Has a different habit, owing 

 to its robust legs and elongate ist abdominal joint, from any of 

 *ny other species ; but is probably, judging from the colorational 

 pattern, allied to cuSensis, Cress., which is expressly stated to 

 have rather stout legs, and to five other Cuban species described 

 by Mr. Cresson, none of which however have a black head like 

 fiielanocephala. From nigriceps^ Brulld (Chili), which has a 

 black head, it is separated at once by having no transverse carina 

 on abdominal joints 2-5. I have no other species o{ Pimpla that 

 has the carinas of the metathorax all well-developed. 



[This belongs to the genus Theronia, Holmgren. — Crksson.] 



Section 2. — Areolet rhomboidal or rhomboido-triangular. 

 t Hind tibice with no white bands. 



Pimpla pedalis. Cresson. — S $• — It may be added to Mr. Cresson's 

 somewhat brief description, based on a single ^ specimen, that the palpi 

 are often rufous towards their tips rather than fuscous, and generally 

 have a rufous tinge throughout; and that the ist joint of the flagellum is 

 about 3i times as long as wide in cf, and 5 times as long as wide in $. 

 The metathoracic carinae are usually obsolete, with the exception of a 

 small basal portion of the two middle ones. These last, however, are 

 sometimes prolonged and crossed at tip by another one, so as to form a 

 tolerably distinct central area, about i longer than wide. The wings in 

 all my specimens are subhyaline, generally with a smoky-yellow tinge ; 

 the stigma is basally whitish ; and the areolet is rhomboido-triangular, 

 the 2d recurrent vein entering it § of the way from its basal to its terminal 

 angle. Bulls normal ; C and D pretty wide apart. The legs are very 

 bright (not "dull") rufous; it is only the basal §-| of the front coxa; that 

 is black in c?, though in $ all but the very extreme tip, and sometimes the 

 whole coxae, is so ; and the extreme tip of the hind femur is always black 

 (5" $. The abdomen, except towards its tip and on the terminal margin 

 of the joints, is confluently punctate so as to have an opaque appearance, 

 and the usual tubercles are subobsolete, and sometimes, especially in $, 

 almost undistinguishable. Joint i is i longer than wide, \ wider behind 

 than before, with the usual two carinse reaching \ of the way to the tip, 

 and enclosing between them on the basal \ of the joint a polished, nearly 

 circular excavation. The ovipositor is scarcely half as long as the body, 

 piceous, and the sheaths are black with very short and very fine pubes- 



