Microdon, Meigen, 1803

Scarparo, Giulia, Wolton, Robert, Molfini, Marco, Pinna, Luigi Cao & Ulio, Andrea Di Gi-, 2020, Comparative morphology of myrmecophilous immature stages of European Microdon species (Diptera: Syrphidae): updated identification key and new diagnostic characters, Zootaxa 4789 (2), pp. 348-370: 364-365

publication ID

https://doi.org/10.11646/zootaxa.4789.2.2

publication LSID

lsid:zoobank.org:pub:CA98993F-C948-4506-A319-E9D20C8D4E2D

persistent identifier

http://treatment.plazi.org/id/03CA8783-FFB1-8F12-FF50-F950FA056505

treatment provided by

Felipe

scientific name

Microdon
status

 

Keys to immature stages of the European species of Microdon  

First instar larvae

1 Body about 1.5 times as long as wide; posterior spiracular tubercle long (more than 1.5 times as long as wide at base); marginal band elongate, showing eight waves on each side...................................... M. myrmicae   / M. mutabilis  

- Body about two times as long as wide; posterior spiracular tubercle very short (wider than long at base); marginal band short, showing 10 waves on each side................................................................... M. analis  

Puparia

1 Most of the dorsal surface of puparium smooth and bare, with reticulation reduced to a narrow, lateral belt.............. 2

- Dorsal surface of puparium completely covered by a dorsal reticulation.......................................... 3

2 Anterior spiracular tubercles conical, tapering at apex; anterior spiracular tubercles about 1.4 times as long as wide at base; each reticulation process composed of groups of umbrella-like structures................................... M. myrmicae  

- Anterior spiracular tubercles dome-shaped, blunt at apex; anterior spiracular tubercles about 0.8 times as long as wide at base; each reticulation process composed of stringy, extended projections.................................... M. mutabilis  

3 Meshes of the dorsal reticulation no broader than the basal diameter of the posterior spiracular tubercle; posterior spiracular tubercle wider than long; anterior spiracular tubercles straight................................................. 4

- Meshes of the dorsal reticulation two times as broad as the basal diameter of the posterior spiracular tubercle; posterior spiracular tubercle longer than wide; anterior spilacural tubercles laterally curved................................. M. devius  

4 Anterior spiracular tubercles equal or more than two times as long as wide....................................... 5

- Anterior spiracular tubercles one time only as long as wide, or shorter than wide.............................. M. miki  

5 Anterior spiracular tubercles nearly cylindrical, about three times as long as wide; posterior spiracular tubercle light-brown contrasting with the reddish-brown apical spiracular plates.............................................. M. analis  

- Anterior spiracular tubercles clearly conical, about two times as long as wide; posterior spiracular tubercle uniformly reddishbrown....................................................................................... M. major  

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Syrphidae