164 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 8T 



Food pZanfs.— Collected on Artemisia sp. (sagebrush) by Kenneth 

 M. King at Musselshell, Mont., and on both Artemisia sp. and Soli- 

 dago (goldenrod) by F. S. Carr at Medicine Hat, Alberta. 



Remarks. — Like M. guttulata, M. grisea has been collected on sage- 

 brush. Unlike M. guttulata, it has no conspicuous elytral depressions 

 and also has a longer and differently shaped aedeagus. It is closely 

 related to M. debilis, but is usually larger, and may be distinguished 

 by its even denser pubescence and coarser but shallower punctation. 

 The prothorax is a Uttle wider and frequently more depressed than 

 in M. debilis, and the aedeagus is considerably longer and more acutely 

 pointed. The species, apparently, is confined to Idaho, Montana^ 

 and Alberta. 



MONOXIA ELEGANS. new speciea 



Plate 18, Figure 1 



Medium sized (about 4 mm.), oblong, moderately convex, with a 

 broad head and narrow and not greatly depressed prothorax; some- 

 times entirely pale, again with the prothorax and elytra darkly marked 

 and under surface more or less darkened; densely covered with short, 

 fine pubescence, and rather finely and shallowly punctate. Head 

 unusually wide, densely pubescent; in pale specimens entirely pale, 

 in dark ones, speckled; the median line, labrum, and tubercles above 

 antennal base dark. Antennae slender, usually reddish yellow, in 

 dark specimens with the outer edges darkened. Prothorax not twice 

 as broad as long and not much wider than the head, with arcuate, 

 sometimes angulate sides, and small tooth at basal angle; not much 

 depressed in the median line and the sides usually without depressions 

 and more smoothly rounded than in most species of Monoxia; densely 

 covered with closely appressed pubescence covering punctation; in 

 pale specimens pronotum entirely pale, in dark specimens sometimes 

 entire disk except margin mottled. Elytra oblong, moderately convex; 

 without depressions ; humeri well developed with a short, intrahumeral 

 sulcus; punctation shallow, dense, and rather fine, somewhat obscured 

 by the short pubescence; color variable, usually entirely pale, but 

 sometimes heavily mottled. Body beneath covered with fine pubes- 

 cence; sometimes pale, occasionally under surface and legs speckled. 

 Length, 3.4 to 4.5 mm.; width, 1.5 to 2.2 mm. 



Type, male, and 5 para types (4 males, 1 female), U. S. N. M. No. 

 44021, collected by H. F. Wickham, July 11, 1912. Paratypes also 

 in collection of Museum of Comparative Zoology, Cambridge, Mass., 

 and California Academy of Sciences, San Francisco, Calif. 



Type locality. — Deming, N. Mex. 



Distribution.— IS^ew Mexico (Albuquerque, Deming, Mesilla Park, 

 Las Cruces, State College, Tula Rosa); Arizona (Chiricahua Moun- 



