LIST OF HERTFORDSHIRE DIPTERA. 



251 



Cecidomyid^. 

 Cecidomyinse. 

 Cecidomyia destructor, Say 

 (Hessiau - fly). — Revell's 

 Hall, Hertford, July, 1886, 

 F. M. Campbell in ' Herts 

 Trans.' 

 Diplosis tritici, Kirhy (wheat- 

 midge). — Knebwortli, June, 



Lestreminas. 

 Lestreinia sp. — *Felden, 18. iii. 97. 



Mycetophilid^.. 

 Sciarinse. 

 Sciara Tliomae, L. — Pelden, 



16. viii. 93. 

 S. ? quinquelineata, Mcq. — 



*Felden, 15. xi. 96. 

 S. Pbilineata, Stmg. — *Felden, 



25. iii. 97. 

 S. flavipes, Pz. — * Felden, 



21. xi. 94. 



1881, Miss E. A. Ormerod in 

 ' Herts Trans.' ; Harpenden, 

 1881, /. /. Willis in ' Herts 

 Trans.' 

 Hormomyia sp. — * Felden, 

 10. iv. 21. 



S. annulata, 

 19. xi. 96. 



flavimana, 

 (undated) . 



nitidicollis, Mcj. — * Felden, 

 22. xi. 93. 



S 



s 



ilf^. — * Felden, 

 Z^f. — * Felden 



MycetoiiMlinse. 



Mg.- 



Ztt. 



Cordyla crassicornis, 



* Felden, 16. xi. 94. 

 Dynatosoma nigricoxa, 



* Felden, 26. x. 96. 

 Mycetopliila punctata, Mg. — 



* Felden, 23. x. 96. 



M. lineola, ilfj/. — * Felden, 



27. X. 96. 

 M. stolida, TT^^;;. —* Felden, 



8. iv. 97. 

 M. bimaciilata, F. — * Felden, 



3. xi. 96. 

 M. luctuosa, Mg. — * Felden, 



30. xi. 94. 

 M. signata, Mg. — Felden, 



13. xi. 94. 

 M. cingulum, Mg. — * Felden, 



30. X. 94. 

 M. nebulosa, Standi. — * Felden, 



1. iii. 99. 

 M. blanda, Winn. — * Felden, 



19. xi. 94. 

 M. spectabilis, Winn. — 



* Felden, 10. vi. 99. 



M. unipunctata, Mg. — * Felden, 

 3. i. 99. 



M. gratiosa, Winn. — * Felden, 



9. xi. 96. 

 M. ? biusta, Mg. — * Felden, 



1. xii. 94. 

 M. xanthopyga, Winn. — 



* Felden, 4. xi., 96. 

 M. niargiuata, Winn. — 



* Felden, 25. x. 96. 



M. flava, TFaZfc. — * Felden, 



22. X. 99. 

 Numerous undetermined 



specimens from Felden. 

 Trichouta sp. — * Felden, 



28. iv. 97. 



Rliymosia discoidea, Mg. — 



* Felden, 10. xi. 96. 



E. fenestralis, Mg. — * Felden, 



18. xi. 94. 

 R. signatipes, Wtdp. — * Felden. 



21. iii. 97. 

 R. domestica, Mg. — * Felden, 



29. X. 96. 



R. sp. not described by Winn. — 



* Felden, 10. i. 97. 

 Several undetermined speci- 

 mens from Felden. 



