88 ENTOMOLOGICAL NEWS. [Mar., '04 



9 Length about 10 mm. Head : Clypeus shining, with small and 

 large punctures separated by irregular spaces, the anterior margin prom- 

 inent, slightly subemarginate in the middle ; front with small confluent, 

 imperfect punctures, giving a rugose appearance to the integument, ver- 

 tex with some small imperfect punctures, largely tessellate ; space between 

 the eyes across the summit of the vertex equal to about three-fourths 

 mm.; first joint of flagellum a little more than two-thirds the length of the 

 second ; impressed space back of the posterior ocelli heart shaped or 

 nearly, shining and with a central longitudinal depression. 



Thorax : Sculpture much like that of the front, with a shallow impres- 

 sion medially extending from the interior margin to somewhat beyond the 

 middle ; scutellum convex, slightly impressed medially, more distinctly 

 and sparsely punctured than the dorsulum, shining ; post scutellum dull ; 

 metathorax finely, uniformly coriaceous ; posterior face with fine trans- 

 verse striae and a longitudinal, nearly almond-shaped impression with 

 point down ; mesopleura more finely sculptured than disc of metathorax ; 

 anterior tarsi with about fifteen bristles to the comb ; middle tarsi with 

 eight spines or more on the first joint between base and apex ; posterior 

 tarsi with only one or two spines on the first joint between base and apex 

 (by first joint is meant the metatarsus) ; length of radial nervure between 

 the stigma and first transverse cubitus about equal to the distance be- 

 tween the first and second transverse cubiti on the radius, length of radius 

 between the second and third transverse cubiti about two-thirds the 

 length of the preceding segment. 



Abdomen: Five mm. long; dullish, very finely sculptured; pygidial 

 area shining, slightly convex, a few punctures on the sides, bounded lat- 

 erally by a sharp raised margin. 



Predominating color dark ferruginous ; the head is black except clyp- 

 eus, basal half of mandibles, scape and first three joints of flagellum, 

 which are rather smoky ferruginous, the pedicellum and joints of the 

 flagellum beyond the third are blackish, face with a more brilliant and 

 dense silvery appressed pubescence than rest of head, dorsulum largely 

 black, the reddish color almost obscured, clothed with silver pubescence 

 like the head, but not so dense except on the sides ; a spot on scutellum, 

 a spot on metanotum and a small patch on mesopleura blackish, appressed 

 pubescence on these parts not so heavy as on the face, more abundant 

 on the sides than on the dorsum ; a broad satiny border of appressed 

 pubescence on segments one to four, notched on each sidebasally ; wings 

 hyaline, nervures dark brown or black ; legs sericeous of the same hue 

 as the abdomen, pulvilli and large spur of four posterior tibia; black. 



Type, property of Academy of Natural Sciences, Philadel- 

 phia. 



Type locality, Florence, Arizona. One specimen taken 23 

 July, 1903, by Mr. C. R. Biederman. 



