Following a recurring pattern in recent years regarding the continued introduction of exotic species, of which hemipterans are a numerous and important group, the authors report the discovery of five newly introduced species of psyllids in the island of Madeira: Calophya schini Tuthill, Acizzia acaciaebaileyanae (Froggatt), A. jamatonica (Kuwayama), Heteropsylla cubana Crawford, and Bactericera tremblayi (Wagner).

Revised keys are presented to the genera and subgenera of the Australian bee subfamily Euryglossinae (Colletidae). These are meant to accommodate changes in the classi fi cation of the subfamily, with the following new taxa established: Augohesma gen. n., Austriperditilla gen. n., Chlorohesma subgen. n. (in Callohesma Michener), Euthyhesma subgen. n. (in Callohesma Michener), Oxyhesma subgen. n. (in Callohesma Michener), and Zethohesma gen. n. Checklists are also provided of currently recognized species in the subfamily, with two replacement names appended as Euryglossina ( Quasihesma ) lamellata nom. n. and Euryglossina ( Quasihesma ) cairnsensis nom. n.

Lariophagus rufipes Hedqvist (Pteromalidae) is reported from Britain as an ectoparasitoid of the larvae of Ptinus sexpunctatus Panzer (Coleoptera) in nests of leaf cutter bees Megachile sp. (Apoidea).

Since the northerly dispersal of Papilio demoleus Linnaeus from the Gulf States to inland Syria and south-eastern Turkey (Türkiye), progressive, subsequent spread from Mediterranean Turkey into Mediterranean Syria, Lebanon and Israel, also saw the anticipated arrival of this papilionid on the island of Cyprus in autumn 2021. Monitoring since then, involving reports from 248 observers reporting on 783 observations, has revealed the dispersal of P. demoleus throughout much of the island and has shown the species' ability to cope with cool winters and summer temperatures rising to ca 40°C. As has been noted in other eastern Mediterranean countries, P. demoleus has adapted well to urban and peri-urban environments, successfully breeding and nectaring on resources in domestic gardens where the presence of this attractive species has been widely encouraged. Importantly, as this species is considered a pest of Citrus ssp. in some SE Asia countries, there have yet to be any concerning reports of damage from commercial enterprises. We can further state with a reasonable degree of confidence that this species has established a permanent presence in the Mediterranean Basin.

The slug mite Riccardoella oudemansi Thor, 1932, is reported for the first time from Cyprus. Two terrestrial mollusc species: Limacus flavus (Linnaeus, 1758) (Limacidae) and, tentatively, Carpathica cf. cretica (Forcart, 1950) (Oxychilidae) are reported as hosts. The mites were identified on the basis of palps and leg chaetotaxy, and morphological characters including the shape of famulus on tibia I. Results of an initial molecular analysis are presented. Other Riccardoella species may be present in Cyprus.

Dermestes undulatus Brahm is a scarce species in the United Kingdom. Here we report on the rediscovery of D. undulatus from southern Wales, specifically the island of Flat Holm. The historic and current distribution of D. undulatus in the UK is explored. Dermestes undulatus sits within the subgenus Dermestinus Linnaeus, along with D. murinus Linnaeus. The differentiation of D. undulatus from D. murinus is considered.

On 22 July 2021, I collected about a dozen half-ripe seedheads of the large tussock grass, tall fescue, Schedonorus arundinaceus (Schreb.) Dumort. (syn. Festuca arundinacea Schreb., Lolium arundinaceum (Schreb.) Darbysh.) growing in coastal pasture at Hestefaelleden near Copenhagen, Denmark (55.570881°N 12.558981°E), and brought them home in a spacious ziplock plastic bag. This is my standard procedure for collecting gall midge larvae living in grass spikelets, where they feed on the ripening fruits (caryopses) without leaving any externally visible signs of their presence. No immature gall midges appeared. Instead, after four days, the emergence of large numbers of tiny, green, metallic chalcid wasps appeared. A single male gall midge of the genus Stenodiplosis emerged as well, but not a single larva left the spikelets. The emerging wasps left neat circular exit holes in the grass glumes. Dissection of spikelets revealed partially eaten-out caryopses. The large number of bored spikelets and caryopses and the almost complete absence of other insects, as evidenced by dissecting numerous spikelets under the microscope, provide strong evidence that the wasp larvae had been feeding on the unripe grass fruits as herbivores (they could be called seed predators as they destroy their 'prey'). The reared specimens were sent to Richard R. Askew, who identified them as Mesopolobus pseudolaticornis von Rosen, 1966. Hans von Rosen described the species based on material reared from the same host plant species ('seeds of Festuca arundinacea') collected on 26 August 1963 at Lomma, Scania, Sweden, ca. 30km in a direct line from my collection site. von Rosen did not observe any other insect larvae in the grass seedheads, on which the wasp larvae could have been parasitoids. He specifically noted that 'based on the data available so far, it is not impossible, however unlikely, that M. pseudolaticornis leads a phytophagous lifestyle and produces more than one generation per year'. Graham (1969) caught specimens of M. pseudolaticornis in a coastal marsh at Lodmoor, near Weymouth, Dorset, England. Their host was unknown to him, but the presence of Schedonorus arundinaceus at the site is quite likely. Mesopolobus Westwood is a large, cosmopolitan genus, with most of its members parasitoids of insects from several orders (Diptera, Lepidoptera, Hemiptera, Hymenoptera). It is quite possible that secondary phytophagy-evolution of phytophagous daughter lineages from parasitoid ancestors-has arisen within the genus, much the same as secondary phytophagy has arisen multiple times within the superfamily Chalcidoidea and has been proposed as a driver of chalcid diversification (Blaimer et al. 2023). Within Pteromalidae, at least one example of secondary phytophagy is known: Blascoa ephedrae Askew, 1997, in which the solitary larva feeds on a developing seed of Ephedra nebrodensis Tineo in Spain (Askew & Blasco-Zumeta 1997). Whether M. pseudolaticornis is obligately phytophagous and whether its closest relatives within the genus are also phytophagous remains to be discovered. Material examined 30♂♂48♀♀, em. 26-30.vii.2021, Coll. 22.vii.2021, Hestefaelleden, Amager, Denmark