166 PROCEEDINGS OF THE ACADEMY OF 



in front, another beneath, spot behind wings, scutellnm, minute 

 line on postscutellura, two spots on pleura, the posterior one minute, 

 two spots on metathorax covering tubercles, and a spot on flanks, 

 white or j-ellowish-white ; legs and abdomen hone3^-3'ellow ; four 

 anterior coxre and posterior tarsi j'ellow ; wings hyaline, apex 

 faintly dusky, nervures black, basal segment of abdomen tinged 

 with fuscous, with a minute pale dot on each apical corner. Form 

 same as that of zapotecus ; thorax densely and rather coarsely 

 sculptured ; metathoracic tubercles short and transverse ; abdomen 

 smooth and shining. Length T lines. 

 Orizaba. 



Genus CRYPTANUEA, Brulld. 



In this genus the form is slender; reuions of mesothorax 

 scarcely elevated ; metathorax without spines or tubercles ; legs 

 slender, the posterior pair very long; abdomen slender, the first 

 segment long, straight, slightly and very gradually dilated at tip ; 

 areolet of anterior wings small, quadrate or subquadrate, closed. 



The species ma}'^ be separated as follows : 

 Abdomen black, with one or more white spots at apex ; legs red. most of 



posterior tarsi white 1 . Sumichrastii. 



Abdomen black, with narrow white bands ; pleura, metathorax, iuul Icus 



red 2. delecta. 



Abdomen red, the first, and base of second and third segments black. 



3. acolhua. 

 Abdomen yrlloAv, banded witli black ; anterior wings with a fnlii;inous spot 



at tip of marginal cell 4. pachymenae. 



1. Cryptanura Sumichrasti, n. sp. 



9. lilack, sericeous ; labrum, extreme base of mandibles, palpi, 

 broad annulus on anteniuc (spotted beneath with black), s^)ot on 

 scntellura, postscutellum, posterior tarsi except base and apex, 

 one or more spots on apex of abdomen above, and most of venter, 

 white; legs, including four posterior coxa?, and more or less of 

 the first abdominal seijment, briirht rufo-forruijinous ; anterior 

 cox;e white in front, black on the sides and behind; anterior logs 

 and intermediate tibiie and tarsi somewhat luteous ; posterior 

 tibiie except base, base of their tarsi and tips of all the tarsi, 

 blackish ; wings faintly dusky. Mesothorax finely and closely 

 punctured, the dorsal lines well Impressed; scutellum triangular, 

 deeply excavated at base, wiili tlie sides acutely carinate, tiie 



