CLASSIFICATION OF THE BEES. 81 



5. Scntellum bilobed or stronglv bituberculate ; postscutellum unarmed 6. 



Sen tell urn simple, not distinctly bilobed. 



Postscutellum armed with a small tooth. 



Antenna; somewhat distant at base; maxillary palpi 6-jointed. 



Aminobates Latr. = Phileremus. Lntr. 

 Antennae strongly approximate at base. 



Maxillary palpi 3-4-jointed V in iiiohnf oides Schenck. 



Maxillary palpi 2-jointed Melanempis Sauss. 



Postscutellum unarmed. 



First cubital cell twice the length of the second ; median and submedian 

 cells nearly equal ; first recurrent nervure interstitial : claws with a 

 median tooth < hilicola Spinola. 



6. Both recurrent nervures received by the second cubital cell 7. 



First recurrent nervure received by the first cubital cell, or interstitial with 



the first transverse cubitus. 

 Marginal cell very small and short, scarcely the length of the stigma. 

 Front wings with two complete cubital cells and three discoidal cells. 



Neolarra Ashm. 

 Front wings with only one complete cubital cell and two discoidal cells. 



Philereuiiilus (kll. 

 Marginal cell not small, but long, much longer than the stigma. 



Front wings with the normal number of cells, the first cubital cell longer 

 than the second, the second narrowed above; labial palpi 4-jointed, 

 maxillary palpi 6-jointed. 



Neopasites Ashm. (Type P. fulviventris Ci\). 



7. Marginal cell much longer than the stigma. 



First cubital cell much longer than the second. 



Labrani nearly three times as Ions as wide ; maxillary palpi wanting ; labial 

 palpi 2-jointed; antenna; 12-jointed in both sexes- . Pasiles Jurine. 

 Labrum triangular; labial palpi (?) 5-jointed. 



Sclimiedekneclitia Friese. 



Labrum quadrate, with a delicate, median carina anteriorly ; maxillary 



palpi 6-jointed ; third antennal joint elongate, nearly thrice as long as 



the fourth Pliiarus Gerst. 



First cubital cell somewhat shorter than the second ; labrum subquadrate; 

 maxillary palpi 4-jointed, the first joint elongate, slender, the last as 



long as 2-3 united Homaehthes Gerst. = Morgania Smith. 



S. Axil he produced posteriorly into acute teeth; eyes hairy or glabrous, in the 



latter case the postscutellum armed with a tooth or spine 11 



Axilla; normal, not acutely toothed ; eyes always bare ; both recurrent nervures 



received by the second cubital cell, or rarely with the first recurrent 



nervure interstitial or received by the first cubital cell just before the 



first transverse cubitus. 



First cubital cell twice as long as the second, the second recurrent nervure 



received at the middle of the second cubital cell 10. 



First cubital cell not twice as long as the second. 



Median and submedian cells unequal !). 



Median and submedian cells equal, the transverse median nervure inter- 

 stitial with the basal nervure; maxillary palpi 6-jointed; labial palpi 

 4-jointed. 



TRANS. AM. KNT. SOC. XXVI. (11) JUNE. 1899. 



