222 CHAS. A. BLAKE. 



Abdomen ferruginous, second segment paler, all the segments with an 



apical fringe of black pubescence 79. Sanbornii' 



Abdomen brown, with short golden pubescence; first segment black, 

 second, except narrow basal and apical margins, clay yellow ; 

 head and thorax with short silvery-gray pubescence; nieso- 



thorax black 80. flavida. 



Abdomen black, with mixed black and silvery pubescence. 



Head very large, quadrate, much broader than thorax 81. laticeps. 



Head not broader than thorax. 

 Abdominal segments with an apical fringe of dense silvery pubes- 

 cence S2. Xalapa. 



First and second abdominal segments black, the remainder witli 



dense pale golden or yellowish-white pubescence ....S8. Zapoteca. 



Abdomen with long, thin, white pubescence; size minute... 84. Gila. 



FEMALES. 



Eye.s ovate, 



First abdominal segment small, nodiform, more or less constricted at apex. 

 Head ochraceous ; body ferruginous, abdomen above with two large black 



spots, apex ochraceous 14. cubensis. 



Head ferruginous, vertex golden, occiput black; abdomen without black 



spots, apex ochraceous 15. cinaloa. 



Head fuscous, vertex slightly golden; abdomen ferruginous, apex of second 

 segment with cinereous band : body Avith erect black hairs: 



size minute 16. Yucatana. 



First abdominal segment gradually dilated to apex and sessile with base of 

 second segment. 

 Head black; thorax ferruginous; abdomen black, ornamented with pale 



golden bands and stripes 4. Oajaca. 



Head ferruginous. 



Size medium; legs black 9. ornativentris. 



Size small ; legs ferruginous 10. Leona. 



Head ochraceous 11- palliceps. 



Eyes circular, convex, polished. 

 Body black. 



First abdominal segment small, nodiform, more or less constricted at 

 apex. 

 Head, thorax and abdomen black, ornamented with pale golden or sil- 

 very spots. 

 Large; head with a curved line on vertex and thorax and abdomen 

 with spots and lines, all of pale golden pubescence; second 

 abdominal segment with four polished dull yellowish spots, two 



anteriorly and two posteriorly 53. melanosoma. 



Small; head and mesothorax above and three spots on second abdo- 

 minal segment, posterior jiair large and a spot at tip of abdo- 

 men silvery white 51. trisignata. 



Head, thorax and abdomen, above with long, dense, white pubes- 

 cence , 25. Sackenii. 



Head and thorax entirelv black. 



