Eulecaniinae

Đurović, Gordana, Spodek, Malkie & Ülgentürk, Selma, 2024, Investigations on the immature stages of some species of Eulecaniinae (Hemiptera: Coccomorpha: Coccidae), Zootaxa 5405 (4), pp. 451-494 : 490

Key to first-instar nymphs of Eulecaniinae found in Ankara

1 Spiracular setae and dorsal microducts absent. On Picea (spruce)................................ Physokermes piceae

- Spiracular setae present; dorsal microducts present or absent. Not on Picea ....................................... 2

2 Spiracular setae numbering 2 in each spiracular cleft. Dorsum with simple pores in longitudinal lines on dorsum.......... 3

- Spiracular setae numbering 3 in each spiracular cleft. Dorsum with longitudinal lines either of mixed microducts and simple pores, or of simple pores only........................................................................... 4

3 Each side of dorsum with simple pores in 2 longitudinal lines. On Abies (fir).................... Physokermes hellenicus

- Each side of dorsum with simple pores in 2 longitudinal lines. On Rosa (roses)................. Rhodococcus perornatus

4 Spiracular seta lengths unequal, with median seta clearly longer than lateral setae.................................. 5

- Spiracular seta lengths subequal, with median seta almost same length as lateral setae............................... 6

5 Dorsum with large microducts (large bilocular pores) near mid-line; each side with 2 longitudinal lines of simple pores only........................................................................... Palaeolecanium bituberculatum

- Dorsum without large microducts; each side with 2 longitudinal lines of simple pores and microducts................................................................................................. Sphaerolecanium prunastri

6 Each side of dorsum with 2 lines of simple pores closely paired with microducts. Spiracular setae slender, base of each seta about 2.5 μm wide................................................................... Eulecanium cerasorum

- Each side of dorsum with 2 or 3 lines of simple pores, either closely paired with or separate from microducts. Spiracular setae thicker, base of each seta about 5 μm wide................................................................. 7

7 Each side of dorsum with 3 longitudinal lines: 2 lines consisting of simple pores only, with a line of microducts between them. Spiracular setae bluntly spinose............................................................. Eulecanium tilia e

- Each side of dorsum with submarginal longitudinal lines consisting of simple pores and dorsal microducts; submedial lines containing microducts only. Spiracular setae conical, apically rounded............................ Eulecanium ciliatum