REVISION OF THE TRIBE PAEDERINI — ^BLACKWELDER 101 



Integuments very densely punctate, without shining intervals Echiftster 



A. Eyes very small, separated from base by nearly 3 times their diameter subgenus Leptogenhu 



Eyes large, separated Irom base by less than twice their diameter.......... .subgenus Echiuter 



50. Labral teeth slender, acute Astenus 



Labral teeth short, rounded Sunesta* 



61. Prothorax narrowly prolonged at middle in front Stamnoderus 



Prothorax not distinctly prolonged in front 52 



52. Labrum more or less denticulate 53 



Labrum not at all denticulate Stilicopsis 



63. With very large and distinctly umbilicate punctures on head and 



pronotum 54 



Head and pronotum densely sculptured but without umbilicate 



punctures Suniocharis 



54. Head rounded posteriorly Dibelonetes 



Head truncate posteriorly, emarginate above neck Stiliphacis 



I Snnesta, new genus. Diagnosis: Head and pronotum with feeble umbilicate punctures, without ground 

 sculpture; antennae normal; labrum with 2 short and blunt denticles within an abrupt emargination; third 

 segment of maxillsury palpus large but not subspherieal, fourth segment small, distinguishable from third 

 only with difficulty; gular sutures united in great part; neck one-third as wide as head; prothorax not greatly 

 elongate; presternum expanded laterally under the coxae and connate with the hypomera; hypomera broad 

 but not distinctly lobed behind the coxae; front coxae large, exserted; middle coxa! cavities confluent; pos> 

 terior coxae contiguous, "conical"; first and second abdominal stemites absent; basal half of anterior tibia 

 with a concavity lined with diagonal ctenidia; apex of posterior tibia with a distinct ctenldium only on th« 

 inner «dge. 



GENERIC ARRANGEMENT AND SPECIES EXAMINED 



The following abbreviations are used to indicate the authority for 

 the identification of the species listed: 



BakC C. F. Baker Collection, U. S. National Museum. 



EC A Biologia Centrali- Americana deposit, U. S. National Museum. 



BM British Museum, by exchange. 



Bnhr Dr. Max Bernhauer. 



Brg Alexander Bierig. 



Bruch Carlos Bruch. 



Cam Dr. Malcolm Cameron. 



CC__ __ T. L. Casey Collection, U. S. National Museum. 



Cotype Paraty pe. 



Csy Col. T. L. Casey. 



Dodero— _ A. Dodero. 



EAC. Dr. E. A. Chapin. 



Fenyes Dr. A. Fenyes. 



Janson Via Janson & Sons. 



Linell _ M. L. Linell. 



NM U. S. National Museum collections. 



PT. Paratype 



REB._. Dr. R. E. Blackwelder. 



Reitt Via Edm. Reitter. 



Roelofs Willem Roelofs. 



Shp David Sharp. 



Type Holotype. 



Various Several independent sources. 



Wend Hans Wendeler. 



14624S— 39 2 



