542 PROCEEDINGS OF THE NATIONAL MUSEUM vol. in 



of the included species. But the caution must be heeded in interpret- 

 ing the descriptions and especially in describing new forms. 



Key to the known species of Tominotus 



1. Mesopleural evaporatorium interrupted posteriorly by a transverse, marginal 



or submarginal polished band (fig. 111) 2 



Mesopleural evaporatorium not interrupted posteriorly by polished band . 11 



2. Scutellar apex broad (fig. 80), half or more than half as wide as membranal 



suture 3 



Scutellar apex narrowed (fig. 79), distinctly less than half as wide as mem- 

 branal suture 9 



3. Pronotum with lateral submarginal setigerous punctures arranged in single, 



impressed row (fig. 68); costa with not more than ten setigerous punc- 

 tures 4 



Pronotum with lateral submarginal setigerous punctures not confined to a 

 single, submarginal row, but forming a wider, submarginal stripe, espe- 

 cially anteriorly (fig. 69); costa usually with fifteen or more setigerous 

 punctures 8 



4. Pronotum laterally with many distinct, moderately coarse punctures on 



both lobes 5 



Pronotum laterally with few or no distinct punctures laterally (sometimes 

 with minute punctures) 7 



5. Costa creamy white, contrasting strongly with dark brown corium. 



albicostus, new species (p. 543) 

 Costa concolorous with remainder of corium 6 



6. Tibiae yellowed, in contrast to reddish-brown femora; size larger, length of 



body, 6.9-8; lateral pronotal margins of males not constricted. 



brevis (Signoret) (p. 547) 

 Tibiae concolorous with femora; size smaller, length of body, 5-5.2; lateral 

 pronotal margins of males strongly constricted near middle (fig. 6). 



signoreti (Mulsant and Rey) (p. 566) 



7. Membranal suture virtually straight (fig. 82) ; scutellum with few widely 



scattered punctures; larger, length of body, 8.6. 



impuncticollis (Distant) (p. 560) 

 Membranal suture distinctly bisinuate (fig. 81); scutellum with many 

 crowded punctures; smaller, length of body, 5.5. 



blanchardi (Signoret) (p. 544) 



8. Abdomen polished, impunctate except in spiracular area; larger, length of 



body, 8.5-10.0 hogenhoferi (Signoret) (p. 559) 



Abdomen and dorsal surface, except membrane, with coarse punctures 

 giving rise to long, golden setae similar to those along lateral margins; 

 smaller, length of body, 5.0-6.8 conformis (Uhler) (p. 554) 



9. Corium alutaceous; costa with two or three setigerous punctures. 



brevirostris, new species (p. 545) 

 Corium polished; costa with five to ten setigerous punctures 10 



10. Size smaller, length of body 5.1-7.3; labium surpassing middle coxae. 



communis (Uhler) (p. 551) 

 Size larger, length of body 9.1-10.8; labium not surpassing middle coxae. 



curvipes (Dallas) (p, 556) 



11. Ocelli present, distinct; costa with not more than five setigerous punctures . 12 

 Ocelli absent; costa with ten or more setigerous punctures. 



caecus (Van Duzee) (p. 549) 



