The pantropical subtribe Megacephalina represented by more than 100 species is the most diverse of the basal cicindelid groups. Today, most taxonomists recognize eight genera within the subtribe. This is in contrast to Horn who, back in 1910, conceded only two genus-level taxa: the monospecific Aniara and Megacephala sensu Horn (a genus which united the seven other taxa). In the present study we provide a molecular phylogeny of Megacephalina based on the nuclear 18S and the mitochondrial 16S and cytochrome oxidase III genes. The dataset includes 60 specimens of more than 40 mostly South American and Australian taxa. Three cicindelid species of derived lineages were used as outgroups. The resulting phylogenetic trees are basically in agreement with the current classification system. Megacephala and Grammognatha are placed basal in the dendrogram. Pseudotetracha and Australicapitona form a monophyletic Australian clade. Phaeoxantha, Tetracha and Aniara also form a monophyletic group. The position of Metriocheila remains uncertain. The most striking deviation from the traditional classification is the well-supported placement of Aniara within Tetracha, rendering the latter a paraphyletic taxon. Several monophyletic subgeneric species groups are observed in Pseudotetracha, Phaeoxantha and Tetracha/Aniara. Within the latter the monophyletic sobrina, carolina and brasiliensis clades together represent a monophyletic group. Additionally, habitat types were assigned to the taxa and mapped on the phylogenetic tree. The basal African species inhabit non-flooded uplands. The Australian species moved to inland and/or coastal salt plains. The American groups were most likely first confined to river margins and then colonized secondarily and independently non-flooded uplands and/or coastal habitats

The present biogeographic distribution of tiger beetle fauna is an attempt to register all modern taxa from Pakistan. It includes 55 taxa under 14 genera and 11 subgenera. Three species, Cylindera (Eriodera) albopunctata (Chaudoir 1852), Cicindela viridilabris (Chaudoir 1852) and Neocollyris (Neocollyris) redtenbacheri (Horn 1894) are recorded from Pakistan for the first time.

To document a relation between abundance of arboreal, predatory tiger beetles, their ant prey, and extrafloral nectaries attracting the ants, we gathered data from more than 10 species of native and introduced trees and large, tree‐like perennial plants in Lanao del Sur Province, Mindanao, Philippines. All specimens of tiger beetles (two Tricondyla and two Neocollyris species, all endemic to the country) were noted on five tree species characterized by presence of extrafloral nectaries, including three alien/invasive and two native ones. Invasive Spathodea campanulata and native Hibiscus tiliaceus were the most inhabited ones (respectively, 56% and 19% of beetles). Presence of tiger beetles on these trees most probably depends on high abundance of ants, which are typical prey for arboreal Cicindelidae, while occurrence of ants can result from presence of extrafloral nectaries on different parts of the plants. This suggests a new mutualistic insect–plant interaction between native and invasive species.

The first faunistic record of tiger beetles (Coleoptera: Carabidae: Cicindelinae) in Compostela Valley Province, Mindanao with notes on their habitat is presented. Opportunistic sampling, standard light trapping and photo documentation were conducted in selected areas from January to April 2013 and in September 2015. One hundred four tiger beetles belonging to twelve species and seven genera were recorded. An astonishing (100%) endemicity was observed identified to subspecies level. Thopeutica and Calomera species, specifically Thopeutica anichtchenkoi Wiesner, 2015 and Calomera mindaoensis Cassola, 2000 were observed to be abundant in the samples mostly found in the mountainous and forested open riparian ecosystem of Cagan, New Bataan. Cylindera (Ifasina) discreta elaphroides (Dokhtouroff 1882) was the most common species and was found in different habitat types, but the majority of the species showed a narrow and specialized habitat preference. Protection and conservation of remaining forest areas in Cagan is especially important in preserving endemic species.

An annotated list of the tiger beetles (Coleoptera: Cicindelidae) reported from the Syrian Arab Republic was developed from existing literature and collections. Thirteen species/subspecies representing 7 genera are confirmed as occurring in modern-day Syria. These are differentiated from those reported from regions adjacent to the Syrian borders and likely to occur in Syria and from those reported from ancient Syria and likely do not occur in modern-day Syria. Habitat and distribution records along with other available remarks are provided for each species listed. These data further clarify the occurrence of tiger beetles in the Syrian Arab Republic and its environs.