Lonchaeidae, Loew, 1861

Macgowan, Iain, 2019, New species of Lonchaeidae Diptera: Schizophora) from Madagascar, Israel Journal of Entomology (Oxford, England) 49 (2), pp. 223-242 : 240-242

publication ID

https://doi.org/10.5281/zenodo.3559548

publication LSID

lsid:zoobank.org:pub:82A1B3CD-7D20-45B1-8D68-A3CBEF2BBE38

persistent identifier

https://treatment.plazi.org/id/E71887B0-EB46-7315-FF5C-FABA7A3DFE0B

treatment provided by

Felipe

scientific name

Lonchaeidae
status

 

Key to the Lonchaeidae View in CoL View at ENA genera and species present in Madagascar (A fully illustrated key to Afrotropical genera is provided in MacGowan & Rotheray (in press).)

1 Poststigmatal seta or setae present on anterior marginal portion of anepisternum positioned dorsal of and slightly posterior to anterior thoracic spiracle ( Dasiops View in CoL ) ........................................................................................................... 4

– Poststigmatal seta or setae absent ...................................................................... 2

2 Lunule with setulae, bodY colour black ............................................................. 3

– Lunule without setulae, bodY colour metallic green/blue. Male terminalia as in Figs 25, 26............................................................... Lamprolonchaea smaragdi View in CoL

3 One seta near dorsal margin of katepisternum, arista usuallY bare to setulose. Males: inner surface of surstyli bearing only setulae or setae............................. ......................................................... Lonchaea View in CoL (no males reported in this study)

– UsuallY two setae near dorsal margin of katepisternum, arista plumose. Males: inner surface of surstyli with obvious prensisetae (teeth) ( Figs 11, 16, 20) ( Silba View in CoL ) ................................................................................................................ 6

4 All tarsomeres dark, calYpteres dark with dark fringes. Male terminalia as in Fig. 24......................................................................................... D. stuckenbergi View in CoL

– At least basal tarsomeres pale............................................................................ 5

5 CalYpteres with dark margin and fringe. Male terminalia as in Figs 1–4............ ............................................................................................................ D. kaplani View in CoL

– CalYpteres and fringe entirelY pale. Lunule without pock­like depressions, aculeus wide with a pencil shaped apical segment ( Fig. 5). Interfrontal setulae long (only known from female) ............................................................................ D. pencila View in CoL

6 Humeri, pleuri, scutellum and sides of abdomen brown; legs and halteres Yellowish brown..................................................................................................... S. eximia View in CoL

– BodY and halteres black although legs maY occasionallY be brownish ............. 7

7 All basal tarsomeres pale. Male terminalia as in Figs 30–33............ S. spiculata View in CoL

– Basal tarsomeres dark ........................................................................................ 8

8 Males: surstYli protruding beYond shell of epandrium as a rounded posterior lobe bearing a marginal row of prensisetae ( Figs 22, 23) ........................ S. virescens View in CoL

– SurstYli without such a rounded posterior lobe.................................................. 9

9 Inner surface of surstYli with a distinct row of 3–12 distinct prensisetae on inner surface ( Figs 11, 16)........................................................................................ 10

– Inner surface of surstYli without such a distinct row of prensisetae (in S. andasibe View in CoL 3 prensisetae are on the medial margin) .......................................................... 12

10 Inner posterior margin of surstYli with a row of 3 prensisetae and vertical rows of setulae ( Fig. 11), pregonite long and finger-like ( Fig. 10)........ S. longigonite View in CoL

– Inner surface of surstYli with a row of 6–12 prensisetae................................. 11

11 Inner posterior margin of surstYli with a single row of 6–7 prensisetae ( Fig. 16) pregonite large and bifurcated apically ( Fig. 15) ........................ S. macrogonite View in CoL

– Inner surface of surstYli with 10–12 prensisetae in a partlY double row ( Fig. 27), pregonite not bifurcated apically ( Fig. 28)...................................... S. candidala View in CoL

12 Prensisetae located on a posteriorlY directed process at base of each cercus ( Fig. 36). Phallus short and stout, with a spiculate apex ( Fig. 37)........... S. ungulifera

– Prensisetae located on inner surface of surstYli not on a process at base of cerci. Phallus long and tubular .................................................................................. 13

13 A row of 3 verY closelY approximated rounded prensisetae on medial margin of each surstylus. Left pregonite greatly enlarged and sclerotized, forming a long, black, pointed projection ( Fig. 7). Phallus U-shaped, divided into three processes apically ( Fig. 8) ................................................................................. S. andasibe View in CoL

– 2 large prensisetae on each surstYlus, the ventral verY large ( Fig. 20). Pregonites setulose ( Fig. 19). Phallus simple ( Fig. 21)...................................... S. setigonite View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Lonchaeidae

Genus

Dasiops

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