OXYTETJPAE. 308 



first joint small, second almost as long as third and fourth 

 together, fourth rather shorter than third, slightly narrowed 

 toward apex ; ligula narrow, eniarginate in middle, para- 

 glossae not longer than ligula; lahial palpi with second 

 joint three times as long as first, third transverse, almost 

 crescent-shaped. Tarsi with five joints, first small. 



Oxyportis, Fab. 



S, Intermediate coxae placed near each other or not far 

 apart. 

 a. Tarsi with three joints. 



I, Anterior tibiae with two rows of spmes. 

 Mentum simple; maxillary palpi with third joint rather 



longer and broader than second, fourth small, awl-sha]ied ; 

 paragiossae shorter than ligula ; labial palpi with joints 

 gradually diminishing in breadth, second rather shorter 

 than third. Antennae elbowed ; thorax not fitting closely 

 to elytra, posterior angles rounded ; intermediate coxae 

 placed near each other. Blcdius, Leach. 



II. Anterior tibiae with one row of spines. 



1, Scutellum large. 



Mentum very slightly eniarginate in front; maxillary 

 palpi with third joint not much longer than second, fourth 

 much shorter and narrower than third ; ligula slightly 

 emarginate on each side at apex, paragiossae distinctly 

 longer than ligula ; joints of laliial palpi nearly equal in 

 length, but rather strongly diminishing in breadth. An- 

 ' tennae slightly elbowed ; thorax with side and basal mar- 

 gins rounded ; intermediate coxae placed somewhat apart. 



Platystetlius, Mann. 



2, Scutellum small, 



A A, Intermediate coxae placed somewhat apart. 

 Mentum simple; third joint of maxillary palpi not much 

 longer than second, fourth joint much narrower but only a 

 little shorter than third; paragiossae longer than ligula, 

 which is slightly emarginate on each side at apex ; labial 

 palpi with each joint distinctly narrower than preceding 

 one, second joint almost half as long again as first and 

 rather longer than third. Thorax generally with a straight 

 longitudinal furrow and a sKghtly curved one on each side. 

 First tarsal joint distinctly longer than second. 



Oxytclus, Mann, 



