110 AMERICAN HYMENOPTERA. 



Black ; wings with a cyaneous reflection ; antenncs black. 



Length, 25-35 mm. ; wing, 15-26 mm. ; spread, 32-54 mm. ; antennae, 

 12-23 mm. 



Black, with very fine short sparse pubescence; head and thorax 

 densely punctured ; head slightly narrowed behind the eyes, closely 

 and deeply punctured ; ocelli small, distant from the top of the eyes ; 

 vertex more or less distinctly reticulate ; eyes large, emarginate ; an- 

 tennae black, sometimes tinged with fiavous beneath or the apex of 

 the segments slightly reddish, with a more or less distinct ridge extend- 

 ing from the anterior ocellus down between the bases of the antennae 

 as in morio ; clypeal foveae deep, mandibles broad and stout. Thorax 

 entirely black, densely punctured except on the mesopleurae ; thoracic 

 sutures distinct, often crenulate ; mesonotum opaque, with deep crenu- 

 lated parapsidal furrows ; mesopleurae smooth and shining except on 

 the edges, where it is sparsely punctured ; metathorax opaque, flat 

 behind, finely rugose. 



Wings black with steel-blue reflection; stigma lacking; discocubital 

 vein arcuate ; nervulus interstitial ; nervellus broken well above the 

 middle; legs black, claws pectinate; abdomen black, smooth and 

 shining, or at the most very finely punctured, with fine short scanty 

 pubescence, in one specimen the third segment is slightly tinged with 

 red, ovipositor red. 



Redescribed from the types and three specimens compared 

 with the original description. 



Types. — 9 and cf. No. 65, American Entomological So- 

 ciety. 



This species is related to T. morio, but may be readily 

 recognized by the steel-blue wings and entirely black an- 

 tennae. 



It is more closely related to T. cyaneus and may prove to 

 be synonymous, but the absence of purplish reflection seems 

 fairly constant. 



Distributio7i. — Mexico ; Guatemala. 



The exact range of this species is not yet well known, but 

 it seems to range through Mexico and Central America. It 

 has been reported from Cordova, etc., Mexico : and Cubilg- 

 uitz in Vera Paz, Guatemala, and I have seen specimens 

 from Alta Mira, Tamaulipas, and Cuernavaca, Mexico. 



Nothing is known of the life history, habits, or hosts ; 

 three specimens before me were taken June 26 and July 4. 



Location of specimens, — American Entomological Society, 



