Capt. P. P. Kine’s South American Hymenoptera. 329 
nodosum, basi infern? subtilitér retrocuspidatum ; segmentum tertium, 
campanulatum, abdominis tres partes occupans. Anus ferrugineus, mani- 
fest? aculeatus. Pedes longi, validiusculi, calcaria numero 1:2:2, pa- 
rium posteriorum tenuissima, subulata. Ungues bidentes. 
Taken at Rio de Janeiro and also at St. Catherine’s by Lieut. Graves. 
This species cannot be referred without violence to any of the established 
genera of Ants; but I am not sufficiently acquainted with the family to attempt 
characterizing the group to which it belongs. 
P 
Species minutissima, Polistis collum mordicus amplexa, nec discriminis certioris 
habilis. 
51. MYRMICA 
52. Ponera TARSATA. Fabr. 
St. Catherine’s. 
53. FORMICA STRENUA, 2. S$. 
~ 
Glabra, ferruginea; abdomine fusco ; antennis subclavatis. Aculeata. 
Long. corp. 13 lin. 
Corpus nitidum, glabrum. Thoracis dorsum medio depressum. 
Port Famine. 
54. Formica CASTANEA. Lafr. 
St. Catherine's. 
55. Formica MACULATA. Fabr. 
St. Catherine's. 
HYMENOPTERA. 
Stirps. Puprvora. 3. patricius. 
Fam. lcHNEUMONID E. Gen. Cryptus. 
Trib GENUINE. Subg. Phygadeuon. 
Gen. Ichneumon. 4. prelatus. 
Subg. Ichneumon. Subg. Trachysphyrus. 
1. xanthorrheeus. 5. imperialis. 
2. plebeius. Subg. Cryptus. - 
