2 

Kleine Teufelchen (Puppen) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.
Little devils (pupae) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.

  •   16larvae
    DE, Chemnitz
    2019-06-03 17:34:55

    2   Kleine Teufelchen (Puppen) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.  Little devils (pupae) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.
    larvae
    DE, Chemnitz
    Image number: 16
  •   17larvae
    DE, Chemnitz
    2019-06-03 17:34:43

    2   Kleine Teufelchen (Puppen) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.  Little devils (pupae) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.
    larvae
    DE, Chemnitz
    Image number: 17
  •   18larva
    DE, Chemnitz
    2019-06-03 17:35:12

    2   Kleine Teufelchen (Puppen) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.  Little devils (pupae) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.
    larva
    DE, Chemnitz
    Image number: 18
  •   19pupae
    DE, Chemnitz
    2019-06-04 16:27:20

    2   Kleine Teufelchen (Puppen) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.  Little devils (pupae) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.
    pupae
    DE, Chemnitz
    Image number: 19
  •   20pupae
    DE, Chemnitz
    2019-06-05 12:29:22

    2   Kleine Teufelchen (Puppen) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.  Little devils (pupae) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.
    pupae
    DE, Chemnitz
    Image number: 20
  •   21pupa
    DE, Chemnitz
    2019-06-05 12:30:26

    2   Kleine Teufelchen (Puppen) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.  Little devils (pupae) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.
    pupa
    DE, Chemnitz
    Image number: 21
  •   22pupa
    DE, Chemnitz
    2019-06-06 12:35:53

    2   Kleine Teufelchen (Puppen) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.  Little devils (pupae) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.
    pupa
    DE, Chemnitz
    Image number: 22
  •   23pupa
    DE, Chemnitz
    2019-06-09 09:50:59

    2   Kleine Teufelchen (Puppen) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.  Little devils (pupae) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.
    pupa
    DE, Chemnitz
    Image number: 23
  •   24pupa
    DE, Chemnitz
    2019-06-09 09:51:11

    2   Kleine Teufelchen (Puppen) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.  Little devils (pupae) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.
    pupa
    DE, Chemnitz
    Image number: 24
  •   25female
    DE, Chemnitz
    2019-06-15 10:21:02

    2   Kleine Teufelchen (Puppen) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.  Little devils (pupae) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.
    female
    DE, Chemnitz
    Image number: 25
  •   26male
    DE, Chemnitz
    2019-06-15 10:20:48

    2   Kleine Teufelchen (Puppen) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.  Little devils (pupae) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.
    male
    DE, Chemnitz
    Image number: 26
  •   27female
    DE, Chemnitz
    2019-06-15 10:21:29

    2   Kleine Teufelchen (Puppen) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.  Little devils (pupae) - Hymenoptera: Chalcidoidea: Eulophidae: Eulophus sp.
    female
    DE, Chemnitz
    Image number: 27

While photographing an owled moth caterpillar in a mountain ash leaf (Sorbus aucuparia) I found the small bright larvae shown here. They were pupated the next day. At the rear end of each pupa was a small pile. One day later the initially bright, almost 2.5 mm long pupae had taken on a brown coloration. After another 7 days, on 12 June, nimble little chalcid wasps left the pupae.
In the internet there are some pictures of similar looking pupae, which were assigned to chalcid wasps of the genus Eulophus.
The larvae of some Eulophus species live gregariously as ectoparasitoids of moth caterpillars. The adult larvae pupate near the remains of their host. Shortly before pupation, each larva excretes a yellowish cluster containing the faeces produced during its entire life (meconium).
References, further reading, links:
  1. Noyes, J.S. 2019. Universal Chalcidoidea Database. World Wide Web electronic publication. http://www.nhm.ac.uk/chalcidoids
  2. https://bugguide.net/node/view/248744