Revision of Key to Genera from Wed, 2013-05-01 11:33

Family Lonchaeidae

1. Poststigmatical setae present ……… DASIOPINAE …… Dasiops Rondani

-   Poststigmatical setae absent  ……… LONCHAEINAE ………………. 2

2.Lunule bare ……………………………. EAROMYINAE  ……………….  3

-  Lunule setose  ……………………….  LONCHAEINI  ………………..  6

3.  Scutellum with only four marginal setae ………….  Protearomyia McAlpine

-    Scutellum with additional setulae between marginal setae    …………..  4

4.  Body colour brilliant golden green or bronzy-blue. Eye bare. Frons with sparse, short setulae. Anepisternum with one to several clearly distinguishable anterodorsal setae and two such posterodorsal setae. Katepisternum with one clearly distinguishable setae  …………….………   Lamprolonchaea  Bezzi

-    Body colour predominantly black. Eye frequently pilose. Setulae on frons often dense and long. Katepisternum often with several setae.    ……………..  5

5.  Scutellar margin with setulae anterior to the lateral setae. Anterodorsal setae of the anepisternum weak or absent. Genae and parafacials wide. Calypteres with whitish margins and fringes  ………………….….  Chaetolonchaea  Czerny

-   Scutellum bare anterior to lateral setae. Anepisternum with long anterodorsal setae. Genae and parafacials of normal width.  Calypteres always with darkened margins and fringes  ………………………………….  Earomyia  Zetterstedt

6. . Usually, but not always, with two setae on the katepisternum and plumose arista. Male genitalia; Surstylus –
with an organized row of prensisetae located either on the inner surface, on a basal plate or along ventral
margin, otherwise inner surface usually almost bare of setae, ventral margin usually simple. Fringes of calypteres
with or without longer setulae. .................7
– Usually, but not always, with one seta on the katepisternum and bare arista. Male genitalia; Surstylus –
without an organized row of prensisetae as above, inner surface always bearing setae or setulae, ventral
margin often corrugated, extended or modified into spines or processes, fringes of calypteres
usually of uniform length, if occasionally longer setulae are present† these are not contrasting blackish.
..........................................Lonchaea Fallén

7. Fringes of calypteres with a cluster of longer blackish setulae at the fold. Posterior margin of anepisternum usually with

a row of five to seven evenly spaced setae.................................Neosilba McAlpine

– Fringes of calypteres without a cluster of longer setulae, if these are present (S. fumosa) they are not
entirely black. Posterior margin of anepisternum usually with an interrupted row of three to five setae.
...........................................Silba Macquart

†Note: Two South American species, Lonchaea pilifrons Hennig, 1948 and Lonchaea andina (Bigot, 1885) have
a group of long black setae in the fringe of the calypteres but have an almost bare arista and only one strong seta
on the katepisternum.




Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith