PSEUDAGENIA. 171 



whitish pubescence ; the pronotum a little shorter than the head, the sides rounded 

 and narrowed in front. Median segment elongate, with a gradual slope to the apex, 

 the centre finely transversely striated. Petiole narrow, becoming gradually dilated 

 from the base to the apex, without a neck ; the extreme base black. The basal three 

 segments of the abdomen rufo-testaceous ; the other segments pubescent, narrowly 

 edged with yellow at the apex, the apical segments more or less testaceous. Antennae 

 stout, moderately elongate, and covered with a microscopic pile, the apical joints 

 brownish beneath. Wings : the second cubital cellule considerably shorter than the 

 third at the top and bottom ; the first transverse cubital nervure curved, a little 

 oblique, the second almost straight ; the first recurrent nervure received slightly before 

 the middle, the second in the basal third of the cellule. Legs elongate ; the long spur 

 of the hind tibiae three-fourths the length of the metatarsus. 



25. Pseudagenia orbiculata. 



Agenia orbiculata, Smith, Journ. Ent. i. p. 397 \ 

 Hab. Mexico 1 . 



v^ 26. Pseudagenia azteca. 



Nigra, abdominis basi late rufa, calcaribus albis ; alis fusco-hyalinis, stigmate fusco. <$ . 

 Long. 5 millim. 



Hab. Mexico, Teapa in Tabasco (H. H. Smith). 



Head alutaceous, the lower half densely covered with white pubescence. Eyes 

 slightly curved, converging beneath ; ocelli not in a triangle, the hinder ones separated 

 from each other by the same distance they are from the eyes ; a narrow furrow runs 

 down from them. Clypeus broadly rounded from the base. Occiput almost transverse. 

 Prothorax arcuate behind, somewhat acute in the middle ; elongate, sharply narrowed 

 from the middle towards the apex. Scutellum broad, finely punctured, not much 

 narrowed towards the apex. Median segment with a gradual rounded slope. The 

 thorax alutaceous, densely covered with a short white pubescence. Abdomen as long as 

 the head and thorax united, the base petiolate ; the first (except at the extreme base), 

 second, and third, and part of the fourth, segments rufous ; the apical segment with a 

 pale pubescence. Wings: radial cellule wide, slightly angled where the transverse 

 cubital nervures are received, the apex acutely oblique ; the second cubital cellule at 

 the top and bottom shorter than the third ; the first transverse cubital nervure broadly 

 curved, the third oblique, with a slight curve ; the first recurrent nervure received in 

 the basal third, the second beyond the middle. Legs moderately slender ; the fore 

 knees testaceous ; the long spur of the hind tibiae more than three-fourths the length 

 of the metatarsus. Antennae stout, densely pilose ; the third and fourth joints subequal. 



P. macer, Cresson, appears to resemble this species considerably ; but it has the 



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