238 CHARLES A. BLAKE. 



Sphrerophthalma Ulltei Cresson. 



Female.— Head large, broader than the thorax, black, densely and coarsely, 

 punctured, with a very fine, appressed, silvery pile, glittering in certain lights 

 and a sparse, erect, black pubescence ; on the clypeus the pubescence is long 

 dense and tinged with reddish ; eyes small, rounded, entire and convex ; man- 

 dibles black, red at base; antennae piceous, the flagellum sericeous, the scape- 

 clothed with a silvery pubescence ; thorax broad and truncate in front, narrowed 

 behind, covered with dense, large punctui*es, and clothed with a sparse, erect, 

 black pubescence ; disk of metathorax rounded off with a central patch of sil- 

 very cinereous pubescence, the posterior face flattened and strongly tinged with 

 reddish ; sides of the thorax with a very dense, fine, appressed, silvery cinereous 

 pile, especially in the excavations ; legs piceous black, with a long, thin, cinere- 

 ous pubescence ; posterior tibise and tarsi rufous, the former with a double row 

 of long blackish spines ; tips of tarsal joints spinose and blackish ; abdomen 

 ovate, ferruginous, densely and coarsely punctured, the large basal segment tinged 

 with honey yellow, especially above ; the whole abdomen has above a sparse, 

 rather long, erect, blackish pubescence ; beneath, the pubescence is cinereous and 

 very dense on the apical segments ; above, the apical margin of the small basal 

 segment a subobsolete patch on the basal middle of the large basal segment, ex- 

 tending narrowly to the apex, and a patch on middle of the remaining segments, 

 all of silvery cinereous pubescence ; the node, moderate, of nearly equal width, 

 much depressed, tinged with fuscous, and a rather large, obtuse tubercle on each 

 side at base. Length 12 mm. 



Hab. — Cape St. Lucas, Lower California. 



Sphseroplithalma nigriceps Cresson. 



Female. — Head black, clothed with dense, black pubescence, that about the 

 mouth, as well as the mandibles and palpi, piceous; antennae piceous, basal joint 

 long and slightly curved, second small and subglobose, third three times as long 

 as the second and widened at tip, the nine following joints subequal, each shorter 

 than the third, slightly involute, compressed and widened in the middle and 

 narrowed towards the tip, which is pointed ; thorax broader in front, rufous, 

 covered with large, deep, rough, confluent punctures and clothed with long, erect, 

 ochraceous pubescence, that on the anterior margin black and rather dense ; on 

 each side behind the middle two rather large, obtuse tubercles, the posterior ones 

 placed on the lateral base of the metathorax, which is narrowed towards the tip, 

 convex and gradually sloped behind, the sides abrupt and densely pubescent ; 

 legs piceous black, densely clothed with ochraceous pubescence, very long on the 

 femora ; the tibise with a row of long, acute, black spines ; abdomen ovate, con- 

 vex ; first segment small, campanulate, black, densely clothed with long and short 

 ochraceous pubescence ; second segment large, rufous, roughly and confluently 

 punctured, the basal half above with a large black mark, densely clothed with 

 black pubescence, with the posterior margin lobed on the middle, rest of the seg- 

 ment clothed with short ochraceous pubescence, and on the apical margin a band 

 of dense ochraceous pubescence, sometimes with a transverse patch of black pu- 

 bescence on each side of the middle ; third segment densely clothed with ochra- 

 ceous pubescence, with a slight mixture of black on the basal middle ; remaining 

 segments densely clothed with black pubescence. Length 12-15 mm. (Cresson.) 



Hab. — Cuba. 



