SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. 35 



astroidea, Ach. On Leptosyne gigantea, San Nicolas. 

 (Trask.) On various barks, Catalina. 



" " Swartziana, Nyl. Catalina. More frequent 



and better developed than on the main- 

 land. 



" dispersa (Schrad.). Catalina. (Trask, Hasse.) 



" " tetramera, Sitz. On oak,s Catalina. 



" " cytisii, Mass. Catalina. 



" anastomosans (Pers.) Fr. fil. Catalina. 



" stictella, Stiz. Catalina. 



"' orbillifera, Ach. Catalina. 



" impolita, (Ehrh.) Borr. Catalina. 

 Verrucaria maura, Wahlenb. Catalina. (Trask, Hasse.) 

 punctiformis, Ach. On Heteromeles, Catalina. 



" papillosa, Flk. f. terrestris, Arnold. Catalina. 



A New Bee of the Genus Androrvicus. 



BY T. D. A. COCKERELIv. 



ANDRONICUS HESPERIUS, N. SP. 



Male, length about 12 mm., but appearing less because the ab- 

 domen is curved downwards ; entirely black, with scanty pubes- 

 cence, which is white and flattened on sides of face and sides of 

 clypeus, white, erect and quite long on scutellum and postscutel- 

 lum, and less on other parts of the thorax, dull white and scanty 

 on cheeks, scanty and purplish fuscous at extreme sides of ab- 

 domen; white forming apical bands on abdominal segments 3 to 

 5 (most distinct on 5) ; scanty and party fuscous on legs, more 

 or less orange- fuscous on tarsi behind ; head and thorax very 

 densely punctured, abdomen not so densely (more shining), but 

 still closely ; head rounded, rather large, eyes greenish, facial 

 quadrangle much longer than broad ; mandibles broadly bidentate 

 at apex ; anterior edge of clypeus shining, slightly concave, not in 

 the least keeled or produced ; antennae similar to those of Alci- 

 damea, except that the apex is not hooked; scape stout, black; 

 flagellum somewhat compressed, dark reddish beneath, the basal 

 five joints swollen above ; tegul?e dark ferruginous ; wings stained 

 with ferruginous, stigma very small, venation as in Alcidamea, 

 first recurrent nervure joining second submarginal cell very near 

 its base ; legs ordinary ; tarsi slender, claws bidentate at apex- 

 pulvillus large ; abdomen narrow and more or less cylindrical ; 

 seventh dorsal segment broadly truncate with rounded edges ; 

 claspers large and bristly ; first ventral segment produced into a 



