110 E. T. CRESSON. 



and four slightly interrupted medially and emarginate on each side anteriorly, 

 that on five emarginate laterally, and on sixth segment a broad transverse 

 mark, occupying nearly the entire surface, all yellow,- third and fourth joints 

 of flagellum beneath and more or less of the femora above pale ferrugi- 

 nous; basal joint of tarsi with dense white pubescence; wings smoky towards 

 tips, neuration as in maculifrons ; abdomen very finely punctured. Length 

 .40 inch. 



%. — Larger and more pubescent, the vertex and thorax above clothed with 

 an erect fulvous pubescence; sides of face, clypeus, most of mandibles, scape 

 in front, short line behind summit of eyes, spot on anterior margin of meso- 

 thorax, spot on tegulse, line above, four spots on scutellum, line on four anterior 

 tibiae, spot at base of posterior pair and basal joint of tarsi, all yellowish ; 

 abdomen marked as in 9 except that the bands are more deeply and squarely 

 emarginate on each side, the two middle spots on first segment larger, and the 

 bands on apical segments more or less interrupted medially; the sixth segment 

 has two nearly confluent spots and a prominent acute lateral tooth; apical 

 segments formed as in cognatum. Length .45 inch. 



Hub. — Mexico, (Sumichrast). Two specimens. Same form as that 

 of maculifrons Smith, and closely allied to cognatum. 



Anthidium maculosum. — 9- — Black; clothed with pale pubescence; 

 two large round spots on clypeus, line on mandibles dilated at base, dot behind 

 summit of each eye, spot on tegulse anteriorly, two spots on scutellum, spot 

 at base of tibise and four spots on abdominal segments 1 — 5, larger on apical 

 segments, all yellowish white; tarsi densely clothed with white pubescence; 

 wings smoky, neuration as in maculifrons; apical margin of last abdominal 

 segment sinuate, the lateral angles prominent and acute; ventral scopa white. 

 Length .40 inch. 



Hdh. — Utah, (Putnam) ; California, (H. Edwards). Two specimens. 

 This has also the same form as that of the preceding species. 



Anthidinm mormonnin. — % . — Black, clothed with white pubescence, 

 most dense on face and sides of thorax; sides of face, clypeus, mandibles, dot 

 behind summit of eyes, anterior margin of tegulse, spot in front, dot above, 

 spot on each basal corner of scutellum, an interrupted line on posterior margin, 

 , all the tibise in front, basal joint of tarsi, large spot on each side 

 / \ of first abdominal segment, two minute dots on disk, and a band 



/~_|_^ ) on segments 2 — 6, more or less interrupted medially and emar- 

 ginate on each side anteriorly, more deeply and squarely so on 

 segments two and three, all yellow; tubercles cariniform; neuration as in 

 maculifrons; sixth segment of abdomen with a long acute lateral tooth, and 

 apical segment with two yellow dots, prominently bilobed at tip and with a 

 subacute central tooth, (see figure). Length .40 inch. 



Hah. — Utah, (Ulke). One specimen. 



Anthidium montivaguni. — 9- — Black, clothed with pale pubescence; 

 mark on sides of face, triangular mark on base of mandibles, spot behind 

 summit of eyes, spot on each side of mesothorax in front, anterior margin of 

 tegulse, spot in front, line above, four spots on scutellum, line on all the tibise, 

 band on abdominal segments 1 — 5, interrupted on middle and deeply emar- 

 ginate on each side anteriorly, and two rounded spots on sixth segment, pale 



