Leaves from the heavily infested host plant (likely to be a Gardenia species).

The likely identity is diagnosed based on the appearance of the puparium (protective case that contains the developing pupa) seen in 2 publications: Figure 9 in the 2015 publication [1] and Figure 16 in the 2012 publication [2].

References:

[1] Malumphy C, Radonjić S, Hrnčić S, Raičević M. New Data on the whiteflies (Insecta: Hemiptera: Aleyrodidae) of Montenegro, including three species new for the country. Acta Entomologica Serbica 2015;20:29-41. | Read article |

[2] Malumphy C, Mifsud D. Faunal review of the whiteflies of the Maltese Archipelago (Hemiptera, Aleyrodidae). Bulletin of the Entomological Society of Malta 2012;5:35-47. | Read article |