298 THE CANADIAN ENTOMOLOGIST. 



flowers of Grindelia squarrosa; West Fork Gila River, taken by Town- 

 send, July 12. A male from flowers of ^5/<?r 5/>/«^^«.r at Mesilla, July 

 25, is inseparable from males of octodentata. 



Coelioxys nienth(s, Ckll., 1897. 



$. Deming. ?. Las Cruces, August 11 and August 23, the 

 last at flowers of Chrysopsis villosa; both taken by C. H. T. Townsend. 

 The ? is about 12 mm. long; the apical plates of the abdomen are of 

 the same general type as those of octodentata, but longer, and the dorsal 

 plate does not fall much short of the ventral. The bands of pubescence 

 along the front of the mesothorax, and in the scutello-mesothoracic 

 suture, are of a light warm ochreous colour. The abdominal bands are 

 entire and regular. 



Cxlioxys rujitarsis, Smith, 1854. 



? . Rio Ruidoso, about 7,500 feet, August 3, at flowers of Verbena 

 Macdougali. This specimen, collected by Townsend, diff'ers from Smith's 

 description by the black nervures, and tegulse not testaceous in the 

 middle, but it accords herein with rujitarsis as understood by Cresson. 

 The tarsi are red. What I regard as the ^ of this occurred' at Las 

 Vegas, July 11, at flowers of Cleonie serrulata. It is larger than C. 

 Gilensis. 

 Coelioxys inoesta, Cresson, 1864. 



Beulah, end of August. 



Coelioxys (lucrosa var. ?) Forterce, n. sp. 



$. Harvey's Ranch, near Las Vegas, g,6oo feet, August 22, 1S99. 

 (Wilmatte Porter.) Length about 12 mm. Pubescence white ; short 

 but rather dense on cheeks ; short and mostly appressed on face ; 

 abundant on sides of thorax and on metathorax; erect, scanty and 

 inconspicuous on vertex, mesothorax and scutellum; no band on anterior 

 margin of mesothorax, and only a very slight one at scutello-mesothoracic 

 suture; legs, except coxae, scarcely pubescent, four hind tarsi clothed 

 with fulvous hair on inner side ; abdominal bands narrow, not very con- 

 spicuous, inclined to be more or less interrupted in the middle ; antennas 

 and mandibles entirely black ; tegulse dark reddish-brown ; wings 

 brownish ; punctures of vertex, mesothorax and scutellum dense, large 

 and deep, scutellum becoming cancellate ; edge of scutellum only gently 

 convex, with no central nodule, lateral teeth moderate, straight ; abdo- 

 men shining, punctures sparse on greater part of segments 2 to 4 ; seg- 

 ments 2 and 3 with a transverse groove ; ventral surface with distinct, 



