CHEISTOLIA. — CKYPTANUKA. 251 



tubercles, and the pleural sutures, white. Metanotum in front of the transverse keel 

 (which curves up in the middle) transversely striated, covered with silvery pubescence, 

 behind it shining, impunctate ; tubercles absent. Petiole long, narrow, the extreme 

 base reddish, the apex white, shining, impunctate. Apex of the third and the apical 

 segments white, opaque, very finely and closely punctured. Four posterior spurs black ; 

 middle tibiae black only behind ; hind tibiae entirely black, except a broad white ring at 

 the base ; tips of the tarsi black. Areolet a little longer than broad, closed, angled on 

 lower side. 



CEYPTANURA. 



Cryptanura, Brulle, Hist. Nat. Ins. Hymen, iv. p. 242. 



1. Cryptanura sumichrasti. 



Cryptanura sumichrasti, Cresson, Proc. Acad. Phil. 1873, p. 166 {£ ? )\ 

 Hab. Mexico, Orizaba, Cordova 1 (Sumichrast). 



2. Cryptanura delecta. 



Cryptanura delecta, Cresson, Proc. Acad. Phil. 1873, p. 166 ( ? ■ ) \ 

 Hab. Mexico, Orizaba 1 (Sumichrast). 



3. Cryptanura acolhua. 



Cryptanura acolhua, Cresson, Proc. Acad. Phil. 187% p. 166 ( $ ) \ 

 Hab. Mexico, Orizaba x (Sumichrast). 



4. Cryptanura incauta. (Tab. X. fig. 30.) 



Kufa ; capite, antennis, abdominis apice, tibiis tarsisque postieis, nigris ; annulo antennarum facieque pallida 



flavis. $ . 

 Long. 18 millim. ; terebra fere 4 millim. 



Hab. Panama, Bugaba 800 to 1500 feet (Champion). . . 



Antennae as long as the body, stout, compressed at the apex ; the basal joints a little 

 thickened at their apices ; the third joint longer than the fourth, the basal joint of the 

 scape reddish beneath. Head wider than the mesothorax ; the face flat, transversely 

 striated ; clypeus projecting, the apex transverse ; vertex raised in the centre, a furrow 

 on either side of the ocelli ; tips of the mandibles blackish. Thorax finely punctured, 

 opaque ; furrows obsolete. Scutellum gibbous, broader than long. Metanotum trans- 

 versely rugose ; two broadly curved carinse at the base, the first quite close to the base, 

 the second at the edge of the oblique slope ; tubercles minute. Petiole narrow, smooth 

 and shining; postpetiole semiopaque, obsoletely aciculate, a large tubercle on either 

 side at the base. Abdomen obsoletely aciculate, black from the third segment, the edges 

 of the apical segment obscure red, and covered with pale pubescence. Legs longish ; 

 hind spurs reddish ; the tarsi (especially on the under side) with reddish bristle-like 



2kk2 



