58 PROCEEDINGS OF THE NATIONAL MUSEUM vol.78 



77. Prescutum not channeled medially ; propodeal apophyses present. 



histrio Spinola, female, male (South America). 

 Prescutum channeled medially ; propodeum without apophyses. 



guaruja BrSthes, female (Argentina). 



78. Propodeum with three longitudinal black striiies. 



leprieuri Spinola, male (Guiana). 

 Propodeum largely piceous black. 



inquinatus Cushman, female, male (Argentina). 



79. Hind coxae red or stramineous 80. 



Hind coxae white or yellowish and black 94. 



(chontalensis Cameron, male [Panama] and guatemalensis Cam- 

 eron, male, [Guatemala] can be run no farther in key on basis of 

 original descriptions). 



80. Propodeum posteriorly punctate or rugose 81. 



Propodeum polished and impunctate 84. 



81. Apophyses long and curved suturalis BruUg, female (Brazil). 



Apophyses cariniform 82. 



82. Thorax black and white tricolor Brulle, female (Cuba). 



Thorax black and stramineous 83. 



83. Second tergite black at base and apex paululus Cresson, female (Mexico). 



Second tergite white at base and apex. 



humerosus Cushman, female (Guatemala; Mexico). 



84. Only the first three segments black leucopus Brull6, female (Brazil). 



All segments more or less black 85. 



85. Orbits not entii-ely yellow 86. 



Orbits entirely yellow 90. 



86. Hind femur entirely red 87. 



Hind femur more or less black at apex 88. 



87. Propodeum black at base, with three longitudinal black lines. 



xanthopus Brulle, male (Brazil). 



Propodeum brown at base and with a large brown median spot before the 



apophyses emarginatus Brulle, male (South America). 



88. Hind femur black only at apex tuberculatus Brullg, female (Brazil). 



Hind femur black throughout its length at least on inner side and below_89. 



89. Head entirely black proximannulatus Cushman, female (Bolivia). 



Head white-marked colliculatus Cushman, female (Brazil). 



90. Propodeum mostly yellow 91. 



Propodeum mostly black 93. 



91. Mesoscutum immaculate black macer Cresson, female, male (Mexico). 



cruciatus Cameron, female (Mexico). 

 (Comparison of descriptions shows no differences.) 

 Mesoscutum with two short white lines on disk 92. 



92. Propodeum with transverse black bands before and behind basal carina and 



three longitudinal stripes. 



neglectus Cushman, female, male (southeastern United States). 

 Propodeum black at base with three black longitudinal stripes. 



trilineatus Brull^, male (not female) (Haiti) (See 75). 



93. Thorax strongly sculptured fulvipes Cameron, male (Guatemala). 



Thorax polished amoenus (Viereck), female (Paraguay). 



94. Antennae without annulus nigricornis Szepligeti, female (Colombia). 



Antennae with annulus 95 



95. Hind tibia entirely yellow 96 



Hind tibia more or less black 107 



