136 KANSAS ACADEMY OF SCIENCE. 



6. Antennae red; veins of wings clouded 7 



Antennae largely black 9 



7. Frontal callosity nearly square; annulate portion of third joint short. . fub, n. sp. 

 Frontal callosity very narrow; annulate portion of antennae very long. 



TUEBiDus ^Yied. 



8. First posterior cell closed; front remarkably narrow abdominalis Fabr. 



First posterior cell open 9 



9. Abdominal triangles of moderate size exul O. S. 



Abdominal triangles large sulcifeons Macq. 



10. The lateral spots of the abdomen touch the hind margin 11 



The lateral spots do not touch the hind margin; small species 13 



11. Middle sized, elongate species gracilis Wied. 



Small species; third antennal joint broad 12 



12. Frontal callosity not denuded pygmjeus. n. sp. 



Frontal callosity denuded spakus Whitney. 



13. Basal part of third joint broad pumilus Macq. 



Basal part of third joint narrow; darker fkatellus, n. sp. 



14. Wings nearly hyaline iEGBOTUS 0. S. 



Wings brown in front ( San Domingo) fenestra, n. sp. 



15. Abdomen black, without red on the sides 16 



Abdomen more or less broadly red on the sides 17 



16. Abdominal segments with a narrow hind border of whitish dust and pubescence, 



expanding into median triangles sequax, n. sp. 



Abdomen without grayish borders or triangle; thickly pilose, thick-set species. 



PEOCYON O. S. 



17. Palpi dark; abdomen red with a median black stripe Megerlei Wied. 



Palpi light yellow 18. 



18. Prevailing color of anteniiie red; front convergent anteriorly.. . .comastes, n.sp. 

 Prevailing color of antenna? black 19. 



19. Front gray phsinops 0. S. 



Front brownish sonomensis 0. S. 



The following species, published since the appearance of Osten Sacken's catalogue, 

 I do not know: 



Tabanus supeejumentarius Whitney, Can. Entom. xi, 37. New Hampshire. 



Tabanus dodgei Whitney, Can. Entom. xi, 37. Nebraska. 



"Eyes pubescent; ocellar tubercle wanting; abdomen brown, with two broad white 

 stripes of subequal width with the space between. Wings hyaline, 12-14 mm." 



Tabanus allyni Marten, Can. Entom. xv, 110. North Carolina. 

 Eyes bare; abdomen broadly yellow on the sides; 15 mm. 



Tabanus tetricus Marten, Can. Entom. xv, 111. Montana. 



A Therioplecfes of the group of T. rhombicus, with denuded subcallus. 



Tabanus frenchii Marten, Can. Entom. xv, 111. Montana. 



A Therioplectes allied to T. microcephalus apparently. The black face with white 

 hair is rather peculiar. 



