Four new Species of Glycaspis Taylor (Horaoptera: Spondyliaspididae) from some endangered Species oi Eucalyptus K. M. MOORE Moore, K. M. Four new species of Glycaspis Taylor (Homoptera: Spondyliaspididae) from some endangered species oi Eucalyptus. Proc. Linn. Soc. N.S.W. 108 (2), (1984) 1985: 71-78. Some rare and endangered species oi Eucalyptus L'Herit. have been examined for associated species of Psylloidea, and four new species of Glycaspis Taylor are described and figured. K. M. Moore, Statue Bay, Yeppoon, Australia 4703; manuscript received 6 March 1984, accepted for publication 20 February 1985. Introduction Of more than 500 known species of Eucalyptus L'Herit., nearly one quarter are recorded as being at some risk of survival (Pryor, 1981). Known and possible causes con-tributing to these risks are discussed by Pryor, who lists 125 species considered to be at present or potentially threatened. Because of their restricted occurrences, these rare eucalypt species generally are not readily located in the field, so that precise and detailed locality information is essen-tial for an examination of the species as possible psyllid hosts. Eucalyptus pumila Cambage, found only on an area of c. 20 ha near Cessnock, New South Wales (Baur, 1981: 59), is probably the extreme example of restricted eucalypt distribution. Results Four eucalypt species in Queensland and three in New South Wales were sampled with a hand-net to determine possible Psylloidea associations. The species examined were E. argophloia Blakely, E. bakeri Maiden, E. conglomerata Maiden & Blakely, E. largeana Blakely & de Beuzeville, E. rummeryi Maiden, E. scoparia Maiden and E. tetrapleura L. Johnson. From each of those eucalypt species, Psylloidea of genera other than Glycaspis Tay-lor were collected for studies by psyllid taxonomist K. L. Taylor, and the species of Glycaspis obtained are the subject of this paper. A new gall-forming species and a new round lerp-forming species of Glycaspis was obtained from E. conglomerata. The first species to be recorded as constructing square (and rectangular) lerps was obtained from E. bakeri, and a new species constructing round to oval lerps was obtained from E. argophloia. These four Glycaspis species are described and illustrated, and all specimens are in the Australian National Insect Collection, CSIRO, Canberra. Of the relatively rare eucalypts listed by Pryor, the following have been previously examined for Glycaspis species (Moore, 1961, 1970a, 1970b, 1977, 1984), an asterisk denoting a Glycaspis host:— E. alpina Lindl., E. brachyandra* F. Muell., E. caesia Benth., E. cneorifolia DC, E. comitae-vallis* Maiden, E. cosmophylla F. Muell., E. curtisii'S>\dk.t\y & White, E. diptera Andrews, E. dongarraensis* Maiden & Blakely, E. dunnii* Maiden, E. erythrocorys F. Muell., E. fasciculosa* F. Muell., E. ficifolia F Muell., E. goniantha Turcz., E. grossa F Muell. ex Benth., E. guilfoylei Maiden, E. howittiana* F. Muell., E. jacksonii PROC. LINN. Soc. N.S.W., 108 (2), (1984) 1985
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