Studies of North American Bees 23 



Illinois. Before the writer is a male from Texas, received years 

 ago by the University from Theo. Pergande. This specimen has 

 the pygidium red, as in porterae, but may be distinguished at once 

 from that species by the broad yellow lines on scape and vertex, 

 the greater amount of yellow on the tibiae, and especially by the 

 armature of the pygidium, the outer lobes of which are much 

 more slender, while the median spine on sternite 6 is short and not 

 pointed as in porterae. 



Anthidium utahense n. sp. 



1904. Anthidium palliventre Cockerell, Bull. Sou. Calif ornia Acad. Sci., 

 pp. 57 and 60, c? (not of Cresson). 



c?. Length 9-10 mm. Black; clypeus, lateral face marks up to lower 

 level of insertion of antennae, mandibles except tips, elongate oval spots 

 on vertex behind eyes, spots on tegulae in front, all of the tibiae at knees, 

 spots on apices of first four tibiae externally, all the basitarsi, four spots 

 on abdominal tergites i and 2, medially interrupted bands on tergites 3-S, 

 which are very deeply emarginate laterally on anterior margin, and comma- 

 shaped spots on tergite 6, yellow. Pubescence short but rather copious, 

 dull grayish white becoming pure white on pleura and legs. Head and 

 thorax finely and very densely punctured. Wings subhyaline, slightly dark- 

 ened on apical margin beyond the nervures, which are brown. Sides of 

 tergite 6 with straight sharp spines, within which are two similar but 

 slightly smaller spines on sides of sternite 6. Pygidium with the lateral 

 lobes very broad and rounded, the short and blunt central lobe arising 

 from the middle of a rather shallow sinus. 



$. Length 7-9 mm. Black; two spots on lateral margins of clypeus which 

 are nearly confluent with spots on the sides of the face, large spots on the 

 mandibles, oval spots on the vertex behind summits of eyes, tubercles, front 

 half of tegulae, two elongate spots on mesoscutellum, stripes on external 

 faces of all of the tibiae, four spots on first abdominal tergite, medially 

 interrupted bands on tergites 2-5, which are deeply emarginate on anterior 

 margin on 2 and 3 and slightly so on 4, and large spots on pygidium, yellow. 

 Pygidium broadly rounded, slightly angled laterally. Hair of inner side 

 of basitarsi reddish, otherwise the pubescence is pale. Ventral scopa white. 

 Otherwise as in J". 



Type. — Logan, Utah, c^. 



Allotype. — Type locality, $. 



Paratypes. — Type locality, 5 c^, i ?• 



This species is the one which Cockerell hesitatingly referred to 



23 



