ORIENTAL SPECIES OF TABAUNS 279 



Abdomen yellowish with median and lateral blackish or brown- 

 ish stripes ... , , . , . . . ditaeniatus. 



(Africa to India ; China and Japan ; common in South India.) 



Group IV. 



9. Abdomen brown, reddish at base, covered with grey tomentum 

 and with two small round greyish spots on the segments. 

 Wings with no appendix. Length 7J to 11 mm . . . virgo. 



(Bengal ; South India.) 

 Abdomen blackish brown with median and lateral greyish 



tomentose spots. Wings with an appendix. Length 13 mm. nemocallosus. 



(Bengal.) 



. :. Abdomen covered with greyish-yellow tomentum and with 

 thick short yellow pubescence in female ; abdomen of male 

 the same but a black median stripe often appears. Wings 

 with no appendix. Length 11 to 12} mm. . . . negativus. 



(Formosa ; China.) 



Group V. 



10. Wings with four dark spots. Abdomen reddish brown, with 



white spots . . javanus. 



(Java.) 



Wings with one cross-band, the first posterior cell open . . . . II 



Wings with two cross-bands, the first posterior cell closed or 



very narrow . . . . . . . . . . . ..12 



11. Forehead narrowest at vertex. Abdomen reddish, darker at 



apex, with small white median spots . . . . . opt at us. 



(Bengal ; Borneo ; Sumatra.) 

 Forehead narrowest anteriorly. Abdomen yellowish, darker 



at apex with larger white spots ...... non-optatus. 



(Bengal.) 



12. Abdomen brownish yellow, with broad yellow posterior bands 



on each segment, under side yellowish. Antennae reddish 



yellow. Male with equal facets to eyes .... flexilis. 



(Celebes.) 



Abdomen brownish red with narrower yellow bands, under 

 side darker. Antennae reddish yellow, black at apex. 

 Male with unequal facets to eyes . . . . . . \ander\vulpi. 



(Philippines.) 



Group VI. 



13. Wings dark rich brown, the disal cell clear. Large black species 

 . with orange red pubescence on face and breast. Antennae 



red pratti. 



(Malacca ; Sarawak ; Selangor.) 

 Smaller species similar in colouring. Antennae black . . fuscicornis. 



(Formosa.) 



Wings yellowish or brownish, very distinctly tinged with 

 . brown at apex and on posterior border. Scutellum yellow 



or greyish ............. 1 4 



14. First posterior cell of wings closed or very narrow . . . . .. . 15 



First posterior cell open, not very narrow , . ... .. .::: ',--; . 16 



