252 Mr. J. O. Westwood on Evania and 



MONOMACIIUS, Klug, MSS. 



No characters of this genus have been hitherto published, nor 

 am I aware that any of the species have been described, except 

 the one mentioned above by Perty. In the elongated form of the 

 abdomen, the concealed ovipositor of the female, and the clavation 

 of the abdomen of the males, it approaches Pelecmus ; but in the 

 structure of the head, antennae, posterior tibiae, and tarsi, and the 

 neuration of the wings, it is very distinct from that genus. I 

 have not had an opportunity of examining the trophi. The fol- 

 lowing are its principal characters : — 



Caput crassum, genis plus minusve dilatatis (PI. XIV. fig. 3a, 

 caput maris ; 4o, caput femina;). Mandibul^e magn?e,vs\\t\3S, 

 intus l-dentatae. Palpi graciles. Antennae elongatoe $, 

 14-articulat8e, corpore toto longiores (fig. 5b), articulo basali 

 parvo crasso, 2do minuto, reliquis cylindricis elongatis, longi- 

 tudine aequalibus ; j 15-articulatse (fig. 4 6), articulis versus 

 apicem gradatim crassioribus et brevioribus. Thorax oblongo- 

 ovatus. Collari valde conspicuo obtrigono. Ala; (fig. 5 a) 

 nervis distinctis, cellule unicd marginali parva elongato- 

 triangulari, cellulisque duabus submarginalibus, quarum prior 

 grandis, altera ad apicem extendit, cellulis discoidalibus dis- 

 tinctis. Alee posticae nervis distinctis. Pedes sat graciles, 

 postici formae ordinariae. Abdomen $ capite cum thorace 

 duplo longius, segmento Imo pedunculiformi, gracili, cylin- 

 drico, dimidii abdominis longitudine, segmentis reliquis 5 

 clavam elongato-ovatam formantibus, basalibus majoribus ; 

 5 (fig. 4c) capite cum thorace fere quadruplo longius, gracile, 

 curvatum, in medio subinflatum et ad apicem valde acumi- 

 natum, (oviductu occulto,) 7-annulatum, segmento i^do 

 latiori. 



Genus Brasiliense. 



Sp. 1. Monomachus Klugii, (Plate XIV. fig. 4). 



Ferrugineus, abdomine piceo nigro, pedunculo ferrugineo, alis 

 pallide tinctis, cum maculd fused terminali, genis valde dila- 

 tatis, antennis fuscis pedibusque rufescentibus $ . 



Long. Corp. lin. 10|, expans. alar. lin. 10, 



Mon. lanceolatus, Klug, MSS. 



Habitat in Brasilia. 



In Mus. Reff. Berolinensi. ' «• 



