266 Natural History Bulletin. 



third less than the greatest discal width, discal Hnes fine, one- 

 third shorter than the suture. Abdomen with the base segment 

 half as long as wide, carinae slightly divergent, of the usual 

 length and including one-half of the segment. 



Habitat. New Mexico (Albuquerque). H. F. Wickham. 



D. FORMiCETi, Lee. Elongate, punctulate, more slender 

 than D. longidum^ red -brown, pubescence short, sparse. 

 Length, 1.2 mm. Plate VIII., Fig. 44. 



Head with the OQcipital fovea? nearer together, the grooves 

 convergent, dividing the frpntal margin. Antennal tubercles 

 more prominent, inter-tubercular space smooth, depressed. 

 AntenncB shorter than head and prothorax, rather stout, second 

 joint globular, second to seventh rounded, equal in length, 

 scarcely perceptibly increasing in width, eighth longer, trans- 

 verse, obconical, ninth twice as wide but little longer, trans- 

 versely oval, last joint as wide as the ninth at base. Base 

 truncated, tip rounded. Pal-pi with the last joint thick. Pro- 

 thorax nearly circular, foveas deep. Elytra depressed, punc- 

 tulate, basal foveolas deep, lines entire, sutural intervals flat, 

 punctured, shoulders high, the humeral width equal to the 

 sutural length. The apical width is one-fourth more, the 

 suture being slightly shorter than the head and prothorax 

 together. Abdomen with the first dorsal one-third as long as 

 wide, carinae entire, including more than one-third of the sur- 

 face. 3 with the intermediate thighs very broad, gouged 

 from the middle to near the knee, leaving an excessively 

 strong, sharp, spine above. 



Habitat. Southern States. 



Bryaxis, Lcaeh. 



SYNOPSIS OF THE SPECIES OF BRYAXIS. 



I. Elytra each with two basal foveolie. Prothorax with three equal, pubes- 

 cent fovese. 

 A. Prothorax with three basal foveae connected by an arcuate groove, 

 elytra with a subhumeral fovea and longitudinal groove. Sexual 

 marks on the anterior tibiae and antenna. - {Rybaxis, Sauley). 



