66 



A. A. Girault: 



Honey yellow, the wings hyaline, the head brownish, the 

 occiput medially dusky; face of pronotum, all of mesoscutum (plus 

 parapsides) except narrowly near the yellow tegulae, the axillae, 

 the metathorax and propodeum, the abdominal petiole and all 

 of abdomen (dorsad and laterad only) except tip, black; scutellum 

 yellow, immaculate; tip of ovipositor black. Antennae pinkish 

 beyond first two joints. Feebly punctate. 



(From one specimen, similarly magnified.) 



Male: Not known. 



Described from one female, minutien mounted, labelled ,,19.V." 



Habitat: Paraguay, San Bernardino. 



Type: Zoo,l. Mus., Berlin, the above specimen. 



Chalcitellini. 



Arretoceroidella new genus. 



Female: Like Arretocerus Kirby but the antennae without 

 a ring-joint, the club 3-jointed, 13 joints in all, the first funicle 

 joint longest, the funicle subclavate; posterior femur beneath with 

 one moderately large tooth followed by minute ones; posterior 

 tibiae without a tooth outwardly near base. Posterior coxa with 

 two teeth above before tip in a line. Postmarginal vein long. 



Male: Not known. 



Type: The following species. 



1. Arretoceroidella flava new species. 



Female: Length, 2,80 mm. 



Honey yellow, funicle joints 3 — 6 pinkish, the following 

 blackish, the wings hyaline; head, distal half of abdomen dorsad 

 (fuscous), mesothorax, metathorax (fuscons), over the distal half 

 of hind femora and the sides of mesothorax, darker, brownish or 

 subfuscous. Hind angles of propedeum acute, the petiole a half 

 (mor, orless) the length of the abdomen; head and thorax minutely 

 scaly, the thorax pubescent. Tips of valves of ovipositor black. 



(From three specimens, similarly magnified.) 



Male: Not known. 



Described from three female specimens, minutien mounted, 

 labelled „19. V.". 



Habitat: Paraguay, San Bernardino. 



Type: Zool. Mus., Berlin, the above specimens and a slide 

 with two antennae. 



Chalcidini. 



Genus Tumidicoxa Girault. 

 The antennal club in this genus is apparenty 2-jointed, 3- 

 jointed in Chalcis but the genera are probably the same, since I have 

 often made the mistake'in respect to the number of club joints 

 in the Chalcidinae; it is not always easy to determine accurately 

 and a mistake may have been made in describing Tumidicoxa; 



