278 Mr. T. D. A. Cockerell — Descriptions and 



Allied to M. Iteuw'mensis, but easily separated by the 

 wholly black abdomen. It cannot be the male of M. ordi- 

 narin, Sm., as that has hyaline wings with ferruginous 

 nei'vures. 



Megachile pugnata pomoncE, sp. n. 



$ . — Length 15 mm. 



Like M. pugnata, Say, but the pale hair of thorax, legs, 

 and abdomen reddish yellow^ the dorsal surface of sixth 

 abdominal segment densely covered with clear ochreous 

 hair, without any dark hairs intermixed. Median apical 

 lobe of clypeus entire. 



Hub. Mts. near Claremont, Calif. {Baker ; Pomona coll., 

 183). 



Andrena macrocephala, sp. n. 



^ . — Length about 9 mm. 



Black, with an extremely large and broad quadrate head, 

 nnich broader than the small thorax ; eyes diverging below ; 

 clypeus very broad and low, sparsely punctured, pale yellow 

 with two pale greyish-brown spots ; process of labrum 

 emarginate ; mandibles very long, bent in middle, red at 

 tip ; cheeks very broad, but rounded behind ; flagellum 

 very obscurely reddish beneath • occiput and middle of face 

 with red hair, sides of face with black hair ; thorax dull, 

 minutely granular, with long fox-red hair; legs slender, 

 reddish black ; tegulse very small, dark brownish. Wings 

 moderately dusky, stigma dull ferruginous, nervures fuscous. 

 Abdomen shining black, without bands, hair at apex soot- 

 colour. 



Var. a. Head not so large, though still very large and 

 broad ; thorax with pale fulvous hair. 



Hab. Claremont, Calif. {Baker ; Pomona coll., 200 ; 

 var. a., 199). 



A remarkable species, suggestive of A. berberidis, Ckll., 

 both having a broad head, yellow clypeus, and well- 

 developed malar space. The clypeus is much broader and 

 lower than that of berberidis, aud there are many other 

 differences. 



Panurginus neomeicicanus, Ckll. 



P. nigrinus, Viereck, is the female of P. neomexicanus. 

 I have numerous females from Beulah, August (one at 

 flowers of Polemonium ; TV. Porte?'), Kio Ruidoso, prox. 



