Trechnites insidiosus (Crawford, 1910)

Jerinić-Prodanović, Dušanka, Mihajlović, Ljubodrag & Stojanović, Aleksandar, 2019, Parasitoids of jumping plant-lice (Psylloidea, Hemiptera) from the family Encyrtidae (Hymenoptera, Chalcidoidea) in Serbia, Zootaxa 4577 (1), pp. 29-50 : 41-47

Trechnites insidiosus (Crawford, 1910)

( Figs. 59 – 61 )

Material examined. Cacopsylla bidens , from Pyrus communis, Ilinci , 08.vi.2008. ex pupa 1♀, Zemun-Fakultet, 15.vii.2009. ex pupa 18.vii.2009 1♀, 22.vii.2010. ex pupa 26.vii.2010. 2 ♀, 22.vi.2015 ex pupa 4♀♀ 5♂♂. Cacopsylla breviantennata (Flor) from Sorbus aria (Linnaeus) , Tara, Predov krst, 25.9.2007. ex pupa 2♀♀. Cacopsylla pyri from Pyrus communis, Radmilovac , 12.vi.2006. ex pupa 16.vi.2006. 1♀; 26.vi.2006. ex pupa 30.vi.2006. 9♀♀, 10.vii.2006. ex pupa 15.vii.2006. 1♀ 1♂, 26.vii.2006. ex pupa 28.vii.2006. 1♂, 04.ix.2006. ex pupa 3♀♀, 26.x.2006. ex pupa 1♀, 15.xi.2006. ex pupa 1♀, 18.xi.2006. ex pupa 30.xi.2006. 8♀♀, 07.ix.2008. ex pupa 2♂♂. Radmilovac, 20.vi.2012. ex pupa 27.vi.2012. 1♀.

Trophic status. Parasitoid or hyperparasitoid.

Hosts. Psyllidae ( Cacopsylla sp., C. pyri , C. pyricola , C. pyrisuga ), Encyrtidae ( Syrphophagus mamitus ) ( Trjapitzin 1989; Noyes 2017).

Distribution. Holarctic.

Diagnosis. Body dark brown with shiny dark reflections on mesoscutum. Scutellum bright, metallic blue or green sheen. Top of scape and top of pedicel paler than other parts, legs brown, distal third of mesotibia and tarsi pale yellow. The specimens are in accordance to the description by Trjapitzin (1989) (as Trechnites psyllae (Ruschka) and Guerrieri & Noyes (2009).

Comments. Recorded on Cacopsylla pyri in Serbia ( Grbić et al. 1989. Guerrieri and Noyes 2009).

Here Trechnites insidiosus is recorded in association with C. breviantennata for the first time ( Table 2).

Figures

FIGURES 50–61. 50, Dorsal view of Syrphophagus ariantes (original); 51, Sculpture of mesocutum and scutellum, Syrphophagus ariantes (original); 52, Ocellus, Syrphophagus ariantes (original); 53, Antenna, Syrphophagus ariantes (original); 54, Syrphophagus taeniatus (original); 55, Antenna, ♀ Syrphophagus taeniatus (original); 56, Dorsal view of Trechnites flavipes (original); Figure 57. Antenna ³ Trechnites flavipes (dorsal) (original), 58, Antenna ³ Trechnites flavipes (lateral) (original); 59, Trechnites insidiosus (original), habitus; 60, Dorsal view of Trechnites insidiosus (original); 61, Antenna, female Trechnites insidiosus (original).