Tab^nidae. 111 



— Small species ; eyes with one band 11. bromius. 



13. Ocellar lubercle prominent, the erect hairs at the 



upper eye-margin short; length 15 mm 13. Miki. 



— Ocellar tubercle lying in a deep impression, the erect 



hairs longer; length 12 — 14 mm 14. maculicornis. 



Females. 



1 . Eyes hairy 2. 



— Eyes bare 9. 



2. Ocellar tubercle present 3. 



— Ocellar tubercle wanting 7. 



3. Frontal band 4 to 5 times as high as broad below, 



front above the antennæ dusted 4. 



— Frontal band 2'/l' to 3 times as high as broad below, 

 front above the antennæ shining black; second joint 



of palpi much thickened 3. luridus. 



4. Frontal band about 4 to 4'/3 times as high as broad 



below 5. 



— Frontal band 5 times as high as broad below and 

 here narrowed, frontal callus higher than broad; 



second joint of palpi somewhat thickened 5. solstitialis. 



5. Second joint of palpi much thickened at the base; 



frontal callus nearly quadratic 2. tropicus. 



— Second joint of palpi not thickened, rather thin 6. 



6. Frontal callus shining, generally somewhat rounded 



above, præalar callus most frequently black 1. montanus. 



— Frontal callus generally quadratic, præalar callus 



most frequently reddish 4. Miihlfeldi? 



7. Upper eye-margin with long, erect hairs ; second joint 



of palpi small; species pilose, with rather long hairs . . 6. plehejns. 



— Upper eye-margin without erect hairs ; second joint of 

 palpi long; anterior branch of cubital vein as a rule 



with a veinlet 8. 



8. Femora grey to the tips 7. rusticus. 



— Femora reddish yellow, only grey at the base 8. fulvus. 



9. Large species, 19 mm. or still larger; eyes without 



bands 10. 



— Smaller speeies, not exceeding 13 mm 12. 



10. Greyish black species with three rows of pale spots 



on abdomen; second joint of palpi pointed 12. autumnalis. 



— Species with black and yellow designs ; second joint 



of palpi stubby 11. 



1 1 . The triangles in the dorsal line on abdomen nearly 

 reach the front margin of the segzuents, and are as 

 a rule higher than broad at the base ; third joint of 

 antennæ nearly all black; eyes in the living specimen 



emerald green 9. bovinus. 



— The triangles in the dorsal line on abdomen not 

 reaching the front margin of the segments, equilateral ; 

 third joint of antennæ mostly reddish ; eyes in the 



living specimen dark copper coloured 10. sudeticus. 



