14 E. T. CRES80N. 



a more or less distinct tuft or line of dark golden pubescence. (See § 



60) 67. <'ha pada Cress. 



Thoracic vittfe silvery or griseous 68. 



68. Thoracic vittse interrupted on mesothorax posteriorly ; the smooth spots on 



posterior part of second segment of abdomen transversely subqiiadrate ; 



calcaria pale 80. grapliica Gerst. 



Thoracic vittte not interrupted 69. 



69. Thorax more or less deeply notched on each side of mesothorax posteriorly, 



and immediately in front of metathoracic tubercles 70. 



Thorax not or very slightly notched on each side of mesothorax posteriorly ; 

 calcaria pale 73. 



70. Thoracic vittse extending beyond base of prothorax, sometimes nearly reach- 



ing its anterior margin 71. 



Thoracic vittse much abbreviated anteriorly, not extending beyond base of 

 prothorax 72. 



71. Calcaria black or fuscous ; the two smooth spots on posterior part of second 



abdominal segment oblique 81. nianca Cress. 



Calcaria pale ; the two smooth spots subtransversely quadrate. 



84. borba Cress. 



72. Calcaria black or fuscous ; the two smooth spots on posterior part of second 



abdominal segment subquadrate, not oblique 82. SOflalis Cress. 



Calcaria pale ; the two smooth spots more or less oblique, pyriform. 



83. optata Cress. 



73. Second abdominal segment with a silvery pubescent spot on apical middle, 



the two smooth spots at base ovate ; pubescence of legs pale. 



86. aiixiliai'is Cress. 



Second segment without silvery spot on apical middle, the two smooth spots 



at base long, sublinear ; pubescence of legs, at least on outer side of 



the four posterior tibise and tarsi, mostly black. .85. jiiveiialis Gerst. 



74. Thorax above with two broad, almost entire, reddish-brown pubescent stripes ; 



two narrow, smooth, longitudinal, yellow spots at base of second ab- 

 dominal segment ; calcaria black 87. liiiiiiiar^iiiata Cress. 



Thorax above with two narrow silvery pubescent stripes, generally no smooth 

 spotsat base of second segment; calcaria pale- .88. iiiiiiidula Cress. 



75. The two stripes on second segment of abdomen straight or nearly so 76. 



The two stripeson second segmentcurved outwardly on posterior half ; thorax 



with two almost entire silvery pubescent stripes; calcaria pale. 



89. Andrei Cress. 



76. Thorax entirely black ; calcaria black or fuscous. ..90. rectiiiiieata Andre. 

 Metathorax with two slender silvery pubescent stripes, and a broad silvery 



pubescent patch on flanks; calcaria pale 91. ipanenia Cress. 



Note. — The types of all the new species described in this paper 

 are in the Carnegie Museum, Pittsburgh, Pa. 



1. ]fl. deuticulata Smith, Brit. Mus. Cat. Hym , iii, p. 48.— J .—Length 

 7-8 mm. — Head large, transversely subquadrate, scarcely narrowed posteriorly, 

 broader than thorax ; eyes rounded, very convex, smooth, polished ; thorax short, 



