Host records of Braconidae (Hymenoptera) occurring in miridae (Hemiptera :Heteroptera) found on lodgepole pine (Pinus contorta) and associated conifers

The plant bug (Hemiptera: Heteroptera: Miridae) fauna of lodgepole pine (Pi nus contorta Douglas ex Loud) and associated conifers was examined in Orego n and Wyoming, United States of America. Parasitoid larvae of Braconidae we re recovered from 20 species of Miridae previously unrecorded as braconid h osts, representing 10 genera of bugs, four of which have not been previousl y recorded as hosts. The parasitoid larvae were found only in the immature stages of the bugs. A sequence of species of Miridae occurs on the host tre e through time but only the earlier species are parasitized. Pinus contorta is the most widespread conifer in North America, its four subspecies exten ding from Baja California Norte to the Yukon Territory, Canada. Over 50 spe cies of Miridae have been found on this tree species. Other parasitized spe cies will certainly be found.