Bibionidae - Britain (in development)
Authors: Even Dankowicz
Last updated: July 2018
Help identify observations on iNaturalist:
https://www.inaturalist.org/observations/identify?taxon_id=56097&place_id=6857,6718
Bibionidae
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Fore tibiae | spurred | rows of spines |
Anterior Dorsal Thorax | Lacking spines | Two rows of spines |
Dilophus sp., DC, © Katja Schultz, iNaturalist / CC-BY
Fore tibia with
2-3 rows of spines
Anterior thorax with
2 rows of spines
Bibio fraternus, DC, © Katja Schultz, iNaturalist / CC-BY
Fore tibia with
2 spurs
Anterior thorax
unadorned
Bibio
| | antomeres | protibiae | Inner protibial spur | Body | legs | Base of R4+5 vs r-m | wings |
B. venosus | England | 8-9 | straight and elongate | Long | Black, yellowish humeri | Black to brownish black | subequal | Brownish hyaline |
B. leucopterus | widespread | 9 | swollen | Long | Black | black | subequal | M milky, F smoky |
B. pomonae | widespread | 7 | swollen | Shorter | Black | Femora red, tibiae black, male hind basitarsi distinctively swollen | 2x | hyaline |
B. marci | Eng; Scot | 7 | Swollen | Shorter | Black, black haired | black | 2x | M hyaline, F smoky |
B. hortulanus | England | 7 | Swollen | Shorter | M black, F with abdomen, scutum red, broad; White haired | Black | 2x | M hyaline, F smoky |
B. clavipes | widespread | | Swollen | Shorter | M black; F reddish with 3 black stirpes; white-haired | Black, femoral base elongate | subequal | Stigma pale, wing whitish |
B. lepidus | England | | Swollen | Shorter | black | Black, F reddish black, femoral base elongate | Subequal | Stigma dark; hyaline |
B. nigriventris | Eng; Scot | 5-6 | Swollen | Shorter | black | Black, reddish, femoral base robust | Subequal | M milky, F brownish |
B. anglicus | England | 8 | Swollen | Shorter | M black, F scutum, abdomen orange, less broad | Black, femoral base robust | Subequal | Slightly smoky |
B. ferruginatus | Eng; Scot | 8 | Swollen | Shorter | M black, F thorax black, abdomen red | Black, femoral base robust | Subequal | Somewhat smoky |
B. reticulatus | Eng; Scot | 7+ | Swollen | Shorter | Black, pale haired | , femoral base robust, F metatibial spurs broad, flat (below not so much) | Subequal | Hyaline, dark-veined |
B. johannis | Eng; Scot | 7 | Swollen | Shorter | Black; M thorax and abdomen entirley black setose | M black, F brownish, femoral base robust; male hind tibia with sensilla field strongly darkened | Subequal | Hyaline, Posterior veins lighter; pterostigma blackish |
B. lanigerus (=hybridus) | Eng; Scot | 7+ | Swollen | Shorter | Black, M thorax or abdomen with at least some pale hair. M pale hair on mesonotum at least in NO; medial mesonotum finely sculpted, more shiny; female abdomen black; | M femora black, legs otherwise reddish; femoral base robust, M metabasitarsus 3x long as wide, swollen; hind tibia with sensilla field concolrous | Subequal | Posterior veins lighter, stigma pale brownish |
B. varipes | widespread | 7+ | Swollen | Shorter | Black, M thorax or abdomen with at least some pale hair; M black hair on mesonotum; medial mesonotum coarsely sculpted, not shiny; ventral female abdomen yellowish | , femoral base robust, M metabasitarsus 4x long as wide, not swollen; hind tibia with sensilla field concolrous | Subequal | Posterior veins lighter, stigma brownish |
B. edwardsi | Eng; Scot | 7 | Swollen | Shorter | Black, M long white hair | , femoral base robust, M metabasitarsus 4x long as wide | subequal | Posterior veins lighter, sitgma brown |
Dilophus
| | F head ahead of eyes | Medial protibial spines (basal:apical) | thorax | abdomen | legs | wings |
D. febrilis | widespread | | In 2 medial rows (3/2:1) | Black, white hairs, shiny | Black, white hairs | Black | M hyaline, F smoky |
D. bispinosus | SE England | | In 2 medial rows (2:2) | M black, brownish humerae, F reddish | M black, F reddish | M black, F yellowish | Pale yellowish |
D. femoratus | widespread | Protrudes | 1 medial row | black, white hairs, shiny, F mildly reddish laterally | Black | M black, F reddish | hyaline |
D. humeralis | SE England | Truncate | 1 medial row | black, white hairs, shiny, F strongly reddish laterally | Black | M black, F reddish | M hyaline, F yellowish |
References
Sources for this entire project include:
References
Other sources consulted for this specific document include: