neiv and little-known Hymenoptera. 457 



of Mentzelia Rusbyi, Wooton, Aug. 2, 1898, Ruidoso, 

 N. M., one mile above Big Rock, about 6800 feet (G. H. T. 

 Toumsend) . 



This is hardly more than a geographical race of H. McLeayi. 



Tenthredo pallicoxa, Provancher, 1878. 



One from Ruidoso, N. M., about 8200 feet, foot of divide 

 between Ruidoso and Eagle Creeks, Aug. 12, 1898 (G. H. T. 

 Townsend). 



This species has only been recorded from Canada, but the 

 present specimen agrees so closely with the description, that 

 we must assume it to be the same. It is 9^ millim. long ; 

 the hind femora are entirely yellow beneath, the pale markings 

 throughout being a light primrose-yellow. There is a minute 

 light spot above the base of each antenna, and one at the 

 summit of each eye, as in T. nupera. Cress. 



Lophyrus Townsendi, sp. n. 



? . — Length 9^ millim. ; width of thorax A\ millim. 



Antennse ferruginous, blackish only at extreme tip, 22- 

 jointed. Head and thorax ferruginous ; face up to level of 

 antennse almost entirely yellowish ; cheeks yellow ; middle 

 lobe of mesothorax with a suffused yellow stripe along each 

 lateral margin, and a large black blotch occupying its hind 

 angle; a yellow spot beneath tegulas; a black patch, on 

 which is a yellowish spot, making a sort of ocellus, on pleura ; 

 a small black spot on each lateral lobe of the mesothorax 

 near its lateral margin ; scutellum pale yellow, tipped with 

 ferruginous, its suture with the mesothorax black ; legs 

 ferruginous, the anterior knees slightly yellowish ; wings 

 hyaline, stained with ferruginous, especially about the 

 marginal cell ; abdomen cream-colour, the sutures more or 

 less black, apex dark ferruginous. Head and thorax strongly 

 and rather closely punctured ; the large punctures on the 

 vertex have minute ones scattered between them. Claws 

 with a strong denticle on the inner side. Cross-nervure of 

 lanceolate cell oblique, but only moderately so. 



Hob. South Fork, Eagle Creek, White Mountains, N. M., 

 about 8000 feet, found dead under a pine-tree, Aug. 17, 1898 

 (G. H. T. Townsend). 



A distinct and interesting species. 



