186 CHARLES A. BLAKE. 



Abdomen black, with mixed black and silvery pubescence. 



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



Head not broader than thorax. 



Abdominal segments with an apical fringe of dense silvery pubescence. 



xalapa. 

 First and second abdominal segments black, the remainder with dense, pale, 



golden, or yellowish white pubescence zapoteca. 



Abdomen with long, thin, white pubescence ; size minute gila. 



FEMALES. 



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 silvery 



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 yellow spots, two 



anteriorly and two posteriorly melanosoma. 



Head, thorax and abdomen, above with long, dense, white pubescence. 



Sackenii. 

 Head, thorax and abdomen with long, dense, white pubescence ; size small. 



thetis. 

 Fuscous, clothed entirely with very long, dense, pale, ochraceous pu- 

 bescence, more sparse beneath tecta. 



Black ; head narrower than thorax ; entirely clothed with long, 



dense, ochraceous pubescence erurfita. 



Abdomen above more or less clothed with dense ferruginous pu- 

 bescence, not spotted with black. 

 Abdomen above, except first and base of second segments, ferru- 

 ginous. 



Head broad, quadrate gorgon. 



Head of usual size and shape orcus. 



Nigro-castaneous, margins of abdominal segments fringed with pale 



golden pubescence tisiplione. 



Nigro-castaneous ; head, thorax and abdomen with rusty golden pu- 

 bescence parmosa. 



Castaneous ; head, thorax and abdomen with pale golden pubescence. 



veuiffca. 

 Abdomen above, except first and base of second segment, ochra- 

 ceous zelaya. 



Second segment of abdomen ferrugiuous; size small waco. 



Head and thorax above blackish brown ; abdomen yellowish ferruginous, 



base and a band beyond second segment blaek..couiaiiche. 



Head and thorax nigro-fuscous, second segment of abdomen with obscure 



fulvous pubescence texana. 



Rufo-castaneous ; head round, thorax and abdomen with yellowish white 

 pubescence era to. 



