Lonchaeidae

Macgowan, Iain, 2014, The Lonchaeidae of Fiji (Diptera: Schizophora), Zootaxa 3814 (4), pp. 537-552 : 551-552

publication ID

https://doi.org/ 10.11646/zootaxa.3814.4.6

publication LSID

lsid:zoobank.org:pub:24ACFF96-090E-478D-AF03-49AAEF21897B

DOI

https://doi.org/10.5281/zenodo.6124443

persistent identifier

https://treatment.plazi.org/id/038D5328-CD29-FFF7-FF33-FBE8FA01FEFB

treatment provided by

Plazi

scientific name

Lonchaeidae
status

 

Key to the genera and species of Lonchaeidae View in CoL View at ENA present in Fiji

Determination of Lamprolonchaea , Lonchaea and Silba at species level can only be done at present for male specimens.

1. A single poststigmatal seta present on the anterior marginal portion of anepisternum above and slightly posterior to the anterior thoracic spiracle, frons with lateral corrugations on anterior half, a strong anterior setae present on the genae, lunule with setulae, basal tarsomeres pale......................................................... Dasiops ruidifrons View in CoL

- poststigmatal seta absent, frons without lateral corrugations, strong anterior genal seta absent......................... 2

2. Lunule with setulae................................................................................... 3

- Lunule without setulae.................................................................. 4 Lamprolonchaea View in CoL

3. Males - inner surface of surstyli with only setulae or setae ( Fig. 12 View FIGURES 10 – 13 ). Katepisternum with one strong dorsocentral seta..................................................................................................6. Lonchaea View in CoL

- Males - inner surface of surstyli with an obvious row of prensisetae (teeth) ( Fig. 30 View FIGURES 29 – 32 ) Katepisternum with two strong dorsocen- tral setae....................................................................................... 9. Silba View in CoL

4. Males - inner surface of surstyli evenly covered in fine setulae ( Figs 5 View FIGURES 4 – 6 & 8 View FIGURES 7 – 9 )...................................... 5

- Males - inner surface of surstyli with at most with a few setulae ( Fig. 2 View FIGURES 1 – 3 ). Phallus a slender curved U-shape with obvious apical knob ( Fig. 3 View FIGURES 1 – 3 ).................................................................... Lamprolonchaea gilvipata View in CoL

5. Surstyli almost square in shape, usually with only 4 or 5 well separated long setulae along outer margin. ( Fig. 5 View FIGURES 4 – 6 ). Phallus stout with an asymmetrical dilated apex ( Fig. 6 View FIGURES 4 – 6 )............................................. Lamprolonchaea lustrata View in CoL

- Surstyli with an obvious anterior lobe, always more than 4 or 5 long setulae along outer margin. ( Fig. 8 View FIGURES 7 – 9 ). Phallus long and slen- der forming a rather rectangular U-shape, basal section often with denticles, apex narrow ( Fig. 9 View FIGURES 7 – 9 )................................................................................................... Lamprolonchaea metatarsata View in CoL

6. Phallus with a short apical section, ( Figs. 16 View FIGURES 14 – 17 & 20 View FIGURES 18 – 20 )........................................................... 7

- Phallus with apical section long and slender ( Figs. 13 View FIGURES 10 – 13 & 23 View FIGURES 21 – 23 ).................................................. 8

7. In lateral view apical section of phallus shield-shaped ( Fig. 20 View FIGURES 18 – 20 ), apex of basal section simple, without spicules............................................................................................... Lonchaea melanesia View in CoL

- In lateral view apical section of phallus tubular ( Fig. 16 View FIGURES 14 – 17 ), apex of basal section bifurcated and bearing spicules ( Fig. 17 View FIGURES 14 – 17 )........................................................................................ Lonchaea linefacies View in CoL

8. Cerci bearing thick, blade-like setae at base ( Fig. 10 View FIGURES 10 – 13 ).............................................. Lonchaea fiji View in CoL

- Surstyli with a single row of long strong setulae ( Fig. 22 View FIGURES 21 – 23 ). Phallus a rectangular L-shape, weakly segmented ( Fig. 23 View FIGURES 21 – 23 ).......

....................................................................................... Lonchaea vanua View in CoL 9. Phallus long, thin and curving with a characteristic angled tip ( Fig 28 View FIGURE 28 )................................. Silba perplexa View in CoL

- Phallus stouter with a basal process ( Figs. 26 View FIGURES 24 – 27 & 31 View FIGURES 29 – 32 )......................................................... 10

10. Phallus largely covered in small setulae, basal process simple ( Figs. 31 & 32 View FIGURES 29 – 32 ), calypteres greyish with dark fringe................................................................................................ Silba setiphallus View in CoL

- Phallus with only a few setulae, basal process bifurcate at apex ( Figs. 26 & 27 View FIGURES 24 – 27 ), calypteres and fringe white........................................................................................................ Silba kadavu View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Lonchaeidae

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