On new North- American Insects. 321 



XXXVII.— New North-American Insects. By T. D. A. 

 Cockerell, Entomologist of the New Mexico Agricultural 

 Experiment Station. 



I. — The second North- American Miscophus {Fam. Larridai). 



Hypomiscophus, subgen, nov. 



Only one recurrent nervure, that entering the first sub- 

 marginal cell slightly beyond its middle. Marginal cell 

 rather small; first submarginal extremely large, its area more 

 than twice that of the marginal; second submarginal ex- 

 tremely minute, triangular, shorter than its petiole, and only 

 about half as wide at base as the distance between it and the 

 end of the recurrent nervure. Mandibles with a very deep 

 outer notch, the basal portion of the mandible twice as broad 

 as the portion beyond the notch. Tarsal comb little deve- 

 loped. 



Type M. arenarum, sp. n. 



^]fiscoj)hus arenarum, sp. n. 



? . — Length about 3 millim. 



Head, thorax, antenna?, and first four femora black ; abdo- 

 men, mandibles, and legs (except the first four femora) ferru- 

 ginous. Tubercles and tegulas light ferruginous. Occipital 

 region, face, sides of thorax, and hind margins of abdominal 

 segments interrupted in the middle, shining silvery, with 

 minute appressed pubescence. Apical half of abdomen some- 

 what infuscated. Wings iridescent, nervures piceous ; apical 

 margin very broadly smoky. Hind ocelli somewhat further 

 apart than the distance of either from the eye-margin. Meta- 

 notum with a distinct median longitudinal raised line. Tibial 

 spurs large and black. Thorax with a very minute rugose 

 sculpture. 



Hah. Mesilla Park, New Mexico, July 21, 1898, in a 

 sandy place, in the zone of Pluchea horealis. 



This is very different from M. americanus, Fox, and 

 resembles more M. chrysis, Kohl, an African species, in its 

 venation. I should be inclined to regard Hypomiscophus as a 

 distinct genus but for the fact that the distinctive characters 

 seem practically confined to the wings. 



