168 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



separated by about a puncture width, the interstices lineolate, posterior 

 face of area lineolate; pro'podeum outside of area with punctures about 

 as on dorsal face of area; wings brownish, more so apically and along ante- 

 rior margin; second recurrent ve : n interstitial; transverso-medial not ex- 

 actly interstitial, the exterior margin of the vein about in line with the 

 interior margin of the basal vein; legs black, their pubescence almost 

 white, that on inner side of basal joint of hind tarsi strongly reddish; hind 

 tibial spurs dark brown; abdomen with hair bands on apical margins of 

 segments 1-5, that on segment one ochraceous, rest white; segment one 

 closely punctured, punctures on segments 2-5 decreasing successively in 

 abundance, most of segment 6 rugoso-punctate ; sixth segment with a strong- 

 ly elevated carina near apex, broadly interrupted medially and laterally 

 extending forward almost to base of segment but with decreasing elevation; 

 apical margin of segment with a produced plate as broad as interruption 

 in carina, which is smooth, slightly curved apically and with rounded cor- 

 ners; seventh segment with a longitudinal carina, the apex produced, 

 deeply and broadly emarginate, the productions subtriangular in outline 

 and somewhat reflexed. 



Type locality. Ramsey Canon, Huachuca Mts., Ariz. 



Type. Cat, No. 21836, U. S. N. M. 



Described from two males collected by Dr. W. M. Mann, in 

 honor of whom it is named. Paratype in the collection of Dr. 

 Mann. 



Differs from the description of T. perdita Ckll. in its larger size, 

 deeper color of pubescence, shorter facial quadrangle, interstitial 

 second recurrent vein, lack of a median carina on sixth segment 

 and presence of one on the seventh segment, etc. 



Stelis manni n. sp. 



Female. Length over 11 mm. Black, robust, with yellow ornamenta- 

 tions as follows: lateral face marks extending almost to summit of eyes 

 and slightly obliquely truncate above; a transverse stripe behind ocelli 

 extending down behind eyes almost one-fourth the length of eye; lateral 

 and anterior margins of scutum, broadly interrupted medially in front, 

 axillae, spot on each side of scutellum, lateral margin of tubercles, a broad 

 band on disc of segments 1-5 successively increasing in width, broadly 

 interrupted medially and emarginate behind on segments 1-2, a minute 

 spot on each side of segment 6; band on fifth segment covering all but de- 

 pressed apical margin of segment; head and thorax with large crowded 

 punctures; mandibles, scape, pedicel, first two joints of funicle, reflexed 

 lateral margin of scutum, tegulae and most of tubercles, reddish ; wings dark 

 brown, second recurrent vein well beyond apex of second cubital; femora 

 except apices black; rest of legs red, the tarsi basally more yellowish; 

 abdomen closely punctured, punctures on sixth segment crowded and Hner ; 

 depressed apical margins of segments translucent , in front of this narrowly 



