284 ENTOMOLOGICAL NEWS. [July, '07 



75. Clypeus with an indistinct median impunctate space vicina. 



76. Clypeus with a median impunctate space 77. 



77. Species over 12 mm. long; dorsum of thorax with no black pubes- 



cence carlini. 



78. Process of labrum forming an obtuse-angled triangle ; abdomen 



black . . . . andrenoides-wellesleyana. 



79. Process of labrum emarginate 80. 



Process of labrum not emarginate 85. 



80. Process of labrum truncate anteriorly, the truncation wider than the 



process is long ; clypeus shining, not densely punctured ; cly- 

 peus not maculated 81. 



81. Clypeus with a median impunctate space 82. 



Clypeus with no median impunctate space 83. 



82. Most of the middle third of the clypeus occupied by the impunctate 



space ; species resembting jlavoc/ypeafa . pennsylvanicola n. sp. 



83. Species approximately 13 mm. long 84. 



84. Clypeus polished helianthi. 



Clypeus not polished braccata n. sp. 



85. Clypeus not dull 86. 



86. Clypeus not densely punctured 87. 



87. Clypeus with a median impunctate space 88. 



88. Scopa loose angusi n. sp. 



Scopa compact ; wings blackish asteris. 



89. Process of labrum broadly truncate ; clypeus with no distinct median 



impunctate space ; the second dorsal abdominal segment de- 

 pressed practically one-half rehni n. sp. 



90. Second dorsal abdominal segment depressed one-half . . . . . .91. 



Second dorsal abdominal segment depressed more than one-half . 94. 



91. Abdomen black 92. 



Abdomen red 93. 



92. Abdomen fasciate forbesi. 



Abdomen not fasciate marie var. concolor. 



93. Abdomen not fasciate raariae. 



94. Posterior tibiae and tarsi black or blackish ; abdomen not fasciate. 



weedi n. sp. 

 Posterior tibiae and tarsi black or blackish ; abdomen fasciate . obscura- 

 Posterior tibiae and tarsi honey yellow hippotes. 



95. Second abdominal segment depressed two-thirds . , 96. 



Second abdominal segment depressed more than two-thirds . . .97. 



96. Abdomen densely punctured ; its segments with no testaceous mar- 



gin multiplicata- 



97. Abdomen black ; depressed portion of second dorsal abdominal seg- 



ment indistinctly punctured ; punctures of the clypeus not tine 



nor adjoining ; enclosure coarsely rugose spireana. 



Abdomen fasciate; depressed portion of second dorsal abdominal seg- 

 ment indistinctly punctured ; clypeus with no median impunc- 

 tate space ; posterior tibiae blackish . . multiplicatiforniis n. sp. 



