216 CHARLES A. BLAKK. 



]>().stt'rior half witli pak' ochraceous ; the apical margins of the second, third and 

 fourth segments have a broad fascia of pale ochraceous pubescence ; that on the 

 second produced in the middle into an angular shape ; the basal half of the 

 second segment, and the third and sixth segments entirely clothed with black 

 l)ubescence ; the entire insect sprinkled over with long loose ])ale hairs. Length 

 10 mm. (Smith.) 



Hub. — Mexico. 



Splitcroplitlisiliiia leda Blake. 



i^emaZe.— Black ; head subquadrate, posterior angles rounded, wider than the 

 thorax, densely punctured, thinly clothed with scattered golden hairs ; antennne 

 fuscous ; eyes small, round ; mandibles ferruginous at base, black at tips ; thorax 

 short, ovate, thinly clothed with obscure golden puljescence, sides coarsely re- 

 ticulate, nietathorax abruptly truncate ; legs black, clothed with black hairs, 

 intermediate and posterior tibise armed with long spines ; abdomen ovate, clothed 

 above with coarse golden pubescence ; under .side covered with coarse confluent 

 punctures, margins of the segments fringed with black hairs. Length 14 mm. 



Hab. — Texas^. One e;j)ecimen. 

 Closely resembles aureola Cresson. 



Spliivi'oplitlialnia coinbiiMta .Smith. 



Female. — Entirely of a reddish brown; the antenna,', mandibles and legs ferru- 

 ginous; the head and the thorax above clothed with golden pubescence; the 

 .sides of the thorax unarmed, narrowed posteriorly; the ba.sal and four apical 

 .segments of the abdomen adorned with golden pubescence ; the second segment 

 having two large ovate maculie, placed transversely a little beyond the middle. 

 Length 10 mm. (Smith.) 



Hab. — Mexico. 



SphseropliJhalma tocta Cresson. 



Female. — Form elongate, subrobust, fu.scous ; head narrower than thorax, not 

 l)roader behind the eyes; thm-ax short, subquadrate, broadest acro.ss the middle; 

 abdomen oblong ovate ; entire body and legs clothed with very long, den.se, sub- 

 erect, pale ochraceous pubescence, more sparse on body beneath and legs. Length 

 13 mm. (Cresson.) 



Hab. — California. 



Allied to magna Cresson, but at once distinguished by the pubes- 

 cence of the body beneath, and legs being pale ochraceous instead 

 of black. 



SpliaM'oplitlialnia riibriceps Cresson. 



JF'e/Hrt/e.— Head dull rufous, densely i)unctured and clothed with pale ochraceous 

 pubescence ; mandibles, palpi and antennse piceous, or rufo-piceous, the latter 

 l)roportioned as in nigriceps ; thorax deeply and coarsely punctured, especially 

 on the sides, convex above, deep black, clothed with short, dense, black pubes- 

 cence ; on each side before the middle a small, flattened tubercle, and behind the 

 middle a large, obtuse, rufous tubercle tipped with black ; pleura beneath and 

 the metathorax behind densely clothed with a short, fine, appressed, pale, ochra- 



