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In 2020, two braconid species (Hymenoptera: Braconidae) were found as parasitoids of bark beetles in  Pinus sylvestris  plantations in Ihtimanska Sredna Gora Mt.  Coeloides bostrichorum  Giraud was reared from stem samples attacked by  Tomicus piniperda  and  Tomicus minor  in the region of Krushovitsa vill. (State Forestry Enterprise Elin Pelin), and  Dendrosoter middendorffi  (Ratzeburg) – by  Ips acuminatus ,  Pityophthorus pityographus  and  Pityogenes bistridentatus  in the region of Krushovitsa vill. and Golema Rakovitsa vill. (State Game Enterprise Aramliets).  Coeloides bostrichorum  caused 7.4% mortality of  T. piniperda  and  T. minor , and  Dendrosoter middendorffi  – 5.6-12.5% of  Ips acuminatus , 5.6% of  P. bistridentatus , and 2.8% of  I. acuminatus ,  P. pityographus  and  P. bistridentatus . In the total braconid parasitoid complex,  D. middendorffi  was the dominant species with a relative share of 87.5%.

New braconid parasitoids (Hymenoptera: Braconidae) on bark beetles in Ihtimanska Sredna Gora Mountain, Bulgaria