62 Bulletin of Laboratories of Denis 07 t University xi.j 
Subfamily., CCELIOXYNyE. 
CaiLioxYS. 
Legs and first abdominal segment red ; middle of second to fifth seg- 
ments smooth and impunctate, or with a few scattered punctures. 
(Deming.) ...... 7 nenthcE^ Ckll. 
Legs red ; first abdominal segment black like the rest ; middle of seg- 
ments punctured. (Mesilla Valley.) . . octoaentata^ Say. 
Legs black; tarsi rufous. (Gila R.) . . gileftsis^ n. sp. 
Note . — C. gilensis was found in numbers by Prof. Townsend on the West 
Fork of the Gila R., July i 6 . Mr. Fox compared it with Cresson’s types, and 
returned it marked, “near 7 /icesta." I have a Colorado moesta, identified by Mr. 
Fox, gilensis differs in the longer lateral teeth of the scutellura ; the abdo- 
men with strong, close punctures, as large on the second segment as on the first; 
and the rufous tarsi. The last segment of the abdomen is considerably more 
produced than in ^ octodentata. 
Subfamily. MEGACHILINvE. \ 
Stelis. 
7 mm. long, or less ; black with bright yellow markings; abdomen 
banded with yellow and black; marginal cell and adjacent parts of 
wing fuliginous. (Santa Fe, Gila R.) . . costalis, Cress. 
Anthidium. 
Head entirely black, except a white spot at the summit of each eye. 
(Northern N. M.) . e?jiarginatn!/i, Say, var. atrifrons, Cress., 9 • 
Face with at least some light markings, . . . ’ , i 
1. Clypeus all light, or with only the edge dark, . 2 
Clypeus partly dark, .... 5 
2. Markings largely ferruginous, legs ferruginous. (Mesilla 
Valley, Chaves, Albuquerque.) 
citrvattmi., Smith, {interruptum., Say.) 
Colors black and yellow or white, ■ • • 3 
3. Abdomen with the yellow bands notched behind. (Santa 
Fe.) .... pudicufji^ Cress., . 
Abdomen with the yellow bands notched in front, or di- 
vided into spots, . . . . . 4 
Abdominal bands entire, not conspicuously notched ; legs 
yellow, tinged with ferruginous. (Mesilla Valley.) 
larrecB., Ckll. 
4. Large, yellow marks rather pale, femora and most of tibice 
black. (Mesilla Valley.) . mactilifrons.^ 
Smaller, about 10 mm. long, yellow very bright, legs yel- 
low and ferruginous. Flagellum, except first joint, fer- 
ruginous beneath. Yellow markings of head and thorax 
as in maculifrons. (Mesilla, June 17, at fls. of Pai'osela 
scoparia) . . .. parosela^ Ckll., n. sp. 9. 
