208 HYMENOPTERA. 



stigma, but as there are several species, not very clearly differentiated, of similar 

 coloration, I prefer not to consider it distinct. 



18. Cryptus calipterus. 



Cryptus calipterus, Say, Bost. Journ. Nat. i. p. 234 l j Complete Writings, ii. p. 690 ; Cresson, 

 Trans. Am. Ent. Soc. iv. p. 158 2 . 



Hah. Noeth America, Texas 2 . — Mexico l . 



19. Cryptus Mvus. 



Chjptusfulvus, Taschenberg, Zeits. f. d. ges. Naturwiss. xlviii. p. 66 (1876) 1 . 

 Hah. Mexico 1 . 



20. Cryptus hebetis. (Tab. IX. fig. 13.) 



Ferrugineus, apice antennarum laete, apice metanoti abdominis que segmento 3° basi, nigris ; tarsis posticis flavis ; 



alis flavo-hyalinis, fusco-bifasciatis. § . 

 Long. 11 millim. 



Hdb. Panama, Yolcan de Chiriqui 4000 to 6000 feet (Champion). 



Antennae as long as the thorax and abdomen together ; of nearly uniform thickness ; 

 the middle joints yellowish, the base ferruginous; the third joint as long as the fourth. 

 Head as broad as the mesothorax, finely rugose, opaque ; a blunt, large, semicircular 

 tubercle below the antennas ; clypeus rounded at the apex, projecting, the oral region 

 and two irregular lines on the face blackish ; the depression above the antenna? shining, 

 blackish. Thorax finely rugose ; mesonotal furrows obsolete. Scutellum elevated 

 above the scutum, having a gradual slope to the apex; the sides hollowed. Metathorax 

 hollowed in the centre behind, with an oblique slope, with two large broad tubercles, 

 the carina? obsolete ; below the spiracles hollowed, the apex transversely and indistinctly 

 striated ; all the sutures broadly black. Abdomen finely and closely punctured, 

 opaque ; the basal half of the petiole black, shining, almost impunctate, the apical half 

 and the postpetiole finely punctured ; the apex broad compared to the base. The apices 

 of both wings are smoky, the hind pair faintly ; the apical fascia extends from the middle 

 of the stigma to a little beyond the areolet, the basal fascia to either side of the basal 

 nervure ; areolet longer than broad, bluntly 5-angled, the lateral nervures converging 

 above. 



21. Cryptus fraternans. 



Hab. Mexico, Northern Sonora (Morrison).. 



Identical in coloration with C. hebetis, except that the thoracic sutures are scarcely 

 black; differing otherwise in having the antenna? a little shorter and stouter; 

 in the face below the antenna? projecting more ; in the clypeus being surrounded behind 

 by a much more distinct furrow ; the head also bearing no black at all ; in the scutellum 



