CRYPTUS. 20a 



2. Cryptus montezuma. 



Niger ; abdomine (basi excepta) ruf o ; alis fumatis ; terebra quam abdomen fere longiore. 

 Long. 13 millim. ; terebra 6| millim. 



Bab. Mexico, Ciudad in Durango 8100 feet (Forrer). 



Head and thorax finely and closely rugose ; a tubercle beneath the antennae ; the 

 inner orbits obscure yellowish-white ; face projecting ; front deeply excavated above the 

 antennae, shining, transversely striated. Antennae longish ; first joint of the flagellum 

 nearly as long as the two following together, the basal joints thickened at their apices. 

 Mesonotal sutures subobsolete; scutellum as closely punctured as the rest of the 

 mesothorax, the sides carinate. • Metathoracic arese mostly clearly defined, the basal 

 area indistinct, the supramedian much broader than long, of the lateral areae only the 

 spiracular is defined ; there is a blunt broad tooth on either side in front ; from this a 

 keel curves up to the top, joining the keel of the supramedian area at the side, this 

 latter area being quite straight at the bottom. Petiole aciculated, the sides carinate, 

 the basal three fourths black ; apex scarcely aciculate ; the rest of the abdomen shining, 

 obscurely aciculate. Areolet 5-angled, the sides converging at the top, so that it is 

 there not half the length that it is at the bottom. 



This species may be known from C. americanus, Cresson, by the smoky wings ; 

 by the first joint of the flagellum being much longer than the second, by the strongly 

 punctured scutellum, and by the carinas on the petiole extending to the extreme 

 apex. 



3. Cryptus monticola. 



Long. 8£ millim. ; terebra 3 millim. 



Bab. Mexico, Ciudad in Durango 8100 feet (Forrer). 



Similar in coloration to the preceding species, but differing otherwise in having the head 

 and mesonotum less strongly punctured, the punctures being clearly separated ; by the cly- 

 peus being separated from the projecting face by a transverse depression ; by the sutures 

 on the mesonotum being distinct, broad, and deep. The scutellum is shining, with only 

 scattered punctures, and the sides are not carinate ; the carina which runs from the 

 tubercles at the side of the metathorax is not straight above nor angled where it touches 

 the supramedian area ; the basal and lateral areae are obsolete, and a curved oblique 

 suture runs from near the spiracles to the posterior coxae, while the terebra is only about 

 three fourths of the length of the abdomen. The first joint of the flagellum is about 

 one third longer than the second. 



4. Cryptus nivalis. 



Niger ; abdomine rufo, basi et terebra nigris ; alis fumatis. 

 Long. 10 millim. 



2dd2 



