Insects of Britain and Ireland: the genera of grass moths (Pyralidae-Crambinae and Schoenobiinae)

DELTA home

L. Watson and M. J. Dallwitz

Character list

#1. <Synonyms:>/


#2. Face <whether with conical prominence>/

1. with a conical hairy prominence/

2. without a conical hairy prominence/

#3. Proboscis <functional or atrophied>/

1. functional/

2. atrophied/

#4. Labial palps <porrected, relative length>/

1. relatively very long <exceeding the head and thorax in length>/

2. short <shorter than the head and thorax>/

#5. Wingspan <centre of thorax to a forewing apex, X 2>/


#6. The adults <sexual dimorphism>/

1. conspicuously sexually dimorphic/

2. not very sexually dimorphic/

#7. Forewings <colour and patterning>/

#8. The <forewing> fringe <metallic or not>/

1. glistening-metallic/

2. not glistening-metallic/

#9. The <forewing> fringe <whether chequered>/

1. conspicuously chequered/

2. somewhat chequered/

3. not chequered /

#10. Forewing apices <rounded or pointed>/

1. rounded/

2. pointed/

#11. <Forewing> termen <sinuate or not>/

1. sinuate/

2. non-sinuate/

#12. Forewing of the male <semitransparent patch>/

1. with a semitransparent patch in the cell towards the base/

2. without a semitransparent patch in the cell/

#13. Ground colour of the forewings/

1. whitish/

2. ochreous/

3. brown/

4. grey/

5. light fuscous/

6. dark fuscous/

#14. Forewings <forewings, extent of patterning>/

1. <more or less> plain/

2. inconspicuously patterned/

3. conspicuously patterned with contrasting colours/

#15. The <forewing> patterning <simple or complex>/

1. complex/

2. simple/

#16. The <forewing> patterning <nature>/

1. restricted to longitudinal streaking/

2. restricted to transverse markings/

3. comprising both longitudinal streaking and transverse markings/

4. consisting of dark dots/

#17. Forewings <presence of a median line>/

1. with a median line <describe>/

2. without a median line/

#18. Forewings <whether postmedianly or subterminally transversely dark-lined>/

1. transversely dark-lined towards the termen/

2. not transversely dark-lined towards the termen/

#19. The subterminal lines <whether white-edged>/

1. conspicuously white-edged/

2. not white-edged/

#20. Forewings <whether with a strong white median streak>/

1. with a strong white median streak <to 3/4 or beyond>/

2. without a strong white median streak/

#21. The median streak <of the forewing, whether interrupted>/

1. interrupted by a cross-bar/

2. without a cross-bar/

#22. Forewings <whether with white markings at or towards apex>/

1. with a conspicuous white apical mark <but no costal one nearby>/

2. with both a conspicuous white apical mark and a costal one nearby/

3. without conspicuous white marks at or near the apex/

#23. Forewings <whether with scattered large black scales>/

1. with scattered large black scales/

2. without a scattering of large black scales/

#24. Forewing vein 7 <origin>/

1. arising from vein 8/

2. free/

#25. Hindwings <colour>/

1. white/

2. whitish/

3. ochreous whitish/

4. ochreous grey/

5. pale fuscous/

6. pale grey/

7. dark grey/

8. dark fuscous/

#26. Hindwings <patterning>/

1. plain <excluding any fine dark terminal line at the base of the fringe>/

2. suffused whitish/

3. suffused grey/

4. with a subterminal dark line/

5. with a subterminal dark line and fuscous termen/

#27. Hindwings <colour and patterning>/

Distribution and habitats

#28. <Geographical restriction in Britain>/

1. found only in southern England <e.g., mainland-european immigrants>/

2. widespread <not restricted to southern England>/

#29. <Broad geographical range in the British Isles>/

1. England/

2. Wales/

3. Scotland/

4. Ireland/

#30. Occurring <habitats>/

1. in coastal locations/

2. inland/

#31. <Habitat restrictions>/

1. in wet places <associated with helophytes>/

2. mesophytic habitats/

3. dry places/

#32. British species:/

#33. Adults abroad <months when living adults may be found>/

1. January/

2. February/

3. March/

4. April/

5. May/

6. June/

7. July/

8. August/

9. September/

10. October/

11. November/

12. December/

#34. Adults <whether hibernating>/

1. hibernating/

2. not hibernating/


#35. Larvae feeding on/

1. <living> monocots/

2. <living> mosses/

3. stored products or dead vegetation/

#36. Larvae feeding on <monocots>/

1. Poaceae/

2. Cyperaceae/

3. Typha/

#37. <Distribution and habitats>/


#38. <Subfamily>/

1. Crambinae/

2. Schoenobiinae/

General remarks

#39. <General comments:>/

To view the illustrations with detailed captions, go to the interactive key. This also offers full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, and distributions of character states within any set of taxa.

Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2003 onwards. Insects of Britain and Ireland: the genera of grass moths (Pyralidae-Crambinae and Schoenobiinae). Version: 8th June 2016.’.