Melica, melick

fam. Poaceae

1a larva with chitinsed head; pupation outside the mine => 2

1b larva a maggot; puparium in the mine => 3

1c galls, etc => 100

2a a number of Elachistidae occurs on Melica. The mines are not very diagnostic, and the larvae of many species are not well known; no key is possble: Elachista adscitella, albidella, apicipunctella, atricomella, cinereopunctella, compsa, gangabella, luticomella, obliquella, subalbidella

3a larva: the black warts at the outside of the rear spiracula are small, without a “root”: Cerodontha incisa

3b these warts large, with a deep “root” => 4

4a mainly at low altitudes: Cerodontha pygmaea

4b both at low and high altitudes: Cerodontha melicae

100a Nematoda => 101

100b Acari => 102

100c Coleoptera => 103

100e Diptera => 104

100f Hemiptera => 105

100d Hymenoptera => 106

100g rust fungi => 107

100h smut fungi => 108

100i powdery and downy mildews => 109

100j other causers => 110

102 – Acari

102a Eriophyidae: Abacarus hystrix

104 – Diptera

104a Cecidomyiidae: Mayetiola buhri

108 – smut fungi

108a Tilletiaceae: Tilletia melicae

108b Urocystidaceae: Urocystis melicae

108c Ustilaginaceae: Ustilago striiformis, trebouxii

109 – powdery and downy mildews

109a Erysiphaceae: Blumeria graminis

Not included in the key: Chromatomyia norwegica (mine not described); Ochsenheimeria urella (mine not described).

21/12/2015