Mespilus medlar
The genus Mespilus currently is included in Crataegus.
(For a dichotomous table for galls on Mespilus by Hans Roskam click here)Dichotomous table for leafminers
1a tentiform mine => 2
1b fleck mine => 4
1c corridor or blotch mine => 7
1d galls, etc => Tables for all parasites per species
Dichotomous table for leafminers
1a tentiform mine => 2
1b fleck mine => 4
1c corridor or blotch mine => 7
1d galls, etc => Tables for all parasites per species
2a miune upper-surface, silvery (brown in the end): Phyllonorycter corylifoliella
2b mine lower-surface => 3
3a lower epidermis brownish, wrinkeld but not strongly folded; mine at the leaf margin: Parornix anglicella
3b lower epidermis yellow-green, with some strong folds; mine elongated, between two veins or along the leaf margin: Phyllonorycter anceps, blancardella [voorkomen op deze waardplant zeer onzeker], mespilella, oxyacanthae
4a lobe case: Coleophora violacea
4b tubular leaf case (youth case, ca. 5 mm) => 5
4c composite leaf case (> 5 mm) => 6
5a rear end of case crooked like the handle of a walking stick: Coleophora hemerobiella
5b rear end at most at right angle with the case itself: Coleophora spinella or C. serratella
6a case 8-11 mm; mouth angle 90°: Coleophora hemerobiella
6b case 6-7 mm, mouth angle 60°: Coleophora spinella of C. serratella
7a tiny drop- or pear-shaped blotch with very much frass; larva pear-shaped: Rhamphus oxyacanthae
7b clear corridor or broad blotch (or a combination of both); larva slender => 8
8a corridor, in the end not widenened into a blotch => 9
8b more or less broad blotch, may be preceded by a corridor => 13
9a corridor < 1 cm => 10
9b corridor longer, freely winding through the leaf => 11
10a mine with much frass; usually hooklike, in a vein axil: Bucculatrix bechsteinella
10b little or no frass; gallery irregular, sloppy: Recurvaria nanella
11a frass partly coiled; at start of the mine a globular shining egg shell; larva green: Stigmella oxyacanthella
11b frass throughout in a central line; no egg shell visible; larva whitish => 12
12a frass brown; corridor narrow, not widening; larva makes, on the same or a neighbouring leaf, a blotch mine that contain little or no frass (rare species): Lyonetia prunifoliella
12b frass black; corridor clearly though not strongly widening; larva doesn’t make a blotch, remains in the corridor till just before pupation (common species): Lyonetia clerkella
13a blotch upper- or lower-surface => 14
13b blotch full depth => 15
14a mine upper-surface, silvery, elongated, overlying a thick vein: young mine of Phyllonorycter corylifoliella
14b mine lower-surface: young mine of Parornix anglicella
15a blotch not preceded by a corridor => 16
15b preceding corridor present => 17
16a blotch containts frass, in concentric circles: Leucoptera malifoliella
16b blotch contains little or no frass (it is expelled; some grains may be seen hanging in spinning under the mine): Lyonetia prunifoliella
17a at the start of the corridor a globular shining egg shell; blotch contains clear amounts of frass; initial corridor often following the leaf margin => 18
17b no egg shell at the begin; blotch practically without frass; corridor not following the leaf margin: Lyonetia prunifoliella
18a initial corridor always following the leaf margin; frass here warm brown: Stigmella regiella
18b initial corridor often free from the leaf margin and in that case strongly contorted; frass in the corridor black: Ectoedemia atricollis