©5 APIDJE. 



11. Anthidium flavomarginatum. 



Male. Length 4 lines. — Black ; head and thorax closely punctured, 

 semiopaque ; abdomen shining, much more finely punctured, and 

 having waved yellow fasciae. The anterior portion of the clypeus, 

 the inner orbits of the eyes, a curved line at the insertion of each 

 antenna, the mandibles, and a narrow line on the posterior margin 

 of the vertex, which runs down to the base of the mandibles, yel- 

 low ; the scape in front and the base of the nagellum reddish 

 yellow. A narrow yellow line on the anterior margin of the meso- 

 thorax, interrupted in the middle, passing over the tegulae, and 

 continued along the hinder margin of the scutellum ; the tegulae, 

 the anterior femora in front, and the tibiae and tarsi, ferruginous ; 

 the tibiae more or less black behind ; wings fusco-hyaline, with a 

 dark stain along the fore margin of the anterior pair. The first 

 segment of the abdomen with a lateral, narrow, waved yellow line 

 in the middle ; the second segment with an ovate macula at its 

 lateral margins ; the third, fourth, and fifth segments with a nar- 

 row fascia near their basal margins, the first narrowly interrupted ; 

 the sixth and seventh segments yellow, the latter with a small, deep 

 impression in the middle, close to the apical margin. 



Hah. Brazil, Petropolis. 



12. Anthidium bicoloratum. 



Female. Length 3| lines. — Black, and variegated with red and 

 yellow markings. Head with the orbits of the eyes, the posterior 

 margin of the vertex, a spot in front of the anterior ocellus, the 

 scape, and three or four of the basal joints of the nagellum, ferru- 

 ginous ; the head and thorax closely punctured. The scutellum, 

 a lateral spot united to it, the tegulae, and two narrow abbreviated 

 lines on the disk of the mesothorax ferruginous ; the anterior legs, 

 the intermediate femora at the apex, the tibiae and tarsi, and the 

 posterior femora at the apex ferruginous ; wings fuscous. Ab- 

 domen ferruginous at the extreme base ; the first to fifth segments 

 with a double row of yellow maculae, those on the three basal seg- 

 ments transverse, those on the fourth and fifth segments ovate ; 

 three or four of the basal segments have also a small yellow spot 

 at their extreme lateral margins ; clothed beneath with glittering 

 whitish pubescence. 



Hab. Mendoza. 



13. Anthidium confusum. 



Male. Length 4| lines. — Black, variegated with ferruginous and 

 yellow. The clypeus, mandibles, and face on each side yellow ; 

 the hinder margin of the vertex and the scape ferruginous ; [the 



