The complete mitochondrial genomes of Atkinsoniella grahami and Atkinsoniella xanthonota were sequenced. The results showed that the mitogenomes of these two species are 15,621 and 15,895 bp in length, with A+T contents of 78.6% and 78.4%, respectively. Both mitogenomes contain 13 protein-coding genes (PCGs), 22 transfer RNA genes (tRNAs), 2 ribosomal RNA genes (rRNAs), and a control region (CR). For all PCGs, a standard start ATN codon (ATT, ATG, or ATA) was found at the initiation site, except for ATP8, for which translation is initiated with a TTG codon. All PCGs terminate with a complete TAA or TAG stop codon, except for COX2, which terminates with an incomplete stop codon T. All tRNAs have the typical cloverleaf secondary structure, except for trnS, which has a reduced dihydrouridine arm. Furthermore, these phylogenetic analyses were reconstructed based on 13 PCGs and two rRNA genes of 73 mitochondrial genome sequences, with both the maximum likelihood (ML) and Bayesian inference (BI) methods. The obtained mitogenome sequences in this study will promote research into the classification, population genetics, and evolution of Cicadellinae insects in the future.

The herbivorous leafhopper genus Atkinsoniella Distant, 1908 (Hemiptera: Cicadellidae: Cicadellinae), a large genus of subfamily Cicadellinae, consists of 98 valid species worldwide and 88 species recorded in China. Some species of the genus are very similar in morphological characteristics, so they are difficult to identify accurately. In this study, 12 mitochondrial genomes of Atkinsoniella species with similar morphological characteristics were first obtained through high-throughput sequencing, which featured a typical circular molecule of 15,034–15,988 bp in length. The arrangement and orientation of 37 genes were identical to those of typical Cicadellidae mitogenomes. The phylogenetic relationship within the subfamily Cicadellinae was reconstructed using maximum-likelihood (ML) and Bayesian inference (BI) methods based on three concatenated datasets. The topological structures of the six obtained phylogenetic trees were highly consistent. The results suggested that Atkinsoniella was recovered as a monophyletic group and emerged as a sister group with the monophyletic clade of Bothrogonia, Paracrocampsa (part), and Draeculacephala (part). The branches of the 12 newly sequenced species were clearly separated, with most nodes receiving strong support in all analyses. In addition, the key to the 12 Atkinsoniella species was provided to identify species according to morphological characteristics. This study further promotes research on the classification, genetics, evolution, and phylogeny of the genus Atkinsoniella and subfamily Cicadellinae.

Three new species of the genus Atkinsoniella (Hemiptera: Cicadellidae: Cicadellinae), A. chongqingana Jiang & Yang, A. likuni Jiang & Yang and A. biostiolum Jiang & Yang, sp. nov., collected from southwestern China, are described and illustrated. The two new species, A. chongqingana Jiang & Yang, sp. nov. and A. likuni Jiang & Yang, sp. nov., are similar to A. nigrominiatula (Jacobi, 1944), A. latior Young, 1986, A. limba Kuoh, 1991, A. dormana Li, 1992, A. divaricata Yang, Meng & Li, 2017, A. peaka Yang, Meng & Li, 2017, and A. zizhongi Jiang & Yang, 2022 in appearances, but can be distinguished from these species by the characteristic of aedeagus, paraphysis, and pygofer. Atkinsonella biostiolum Jiang & Yang, sp. nov. can be distinguished from all the known Atkinsoniella species by its special color and markings, as well as males having one ostiole in the center of the base of each subgenital plate. A key to Atkinsoniella species from China is provided.

In this study, three species were examined. Among them, two new species, Caeculisoma taianensissp. nov. and Iguatonia barboproximasp. nov. from Southwestern China, were described and illustrated based on larvae. The two new species can be distinguished from the known species by the following characteristics: the anterior sensilla are nude, and the gnathosoma has two pairs of nude hypostomalae in C. taianensissp. nov.; the anterior sensilla and posterolateral scutalae are located in the posterior half of the scutum, and the posterior hypostomalae with barbs on the proximal half in I. barboproximasp. nov. In addition, a new host and distribution range of Abrolophus quadrapexicis Xu & Jin, 2022 is reported.

The sharpshooter genus Atkinsoniella Distant, 1908 includes 99 valid species worldwide. Here, three new species from China are described and illustrated: Atkinsoniella stenopyga, A. wangi, and A. yingjiangensis spp. nov. An updated checklist of the known Atkinsoniella species worldwide based on the data of previous literature and studied materials is also provided. All the type specimens of three new species are deposited at the Institute of Entomology, Guizhou University, Guiyang, China.

Two new species of the subfamily Cicadellinae (Hemiptera: Cicadellidae), Atkinsoniella piscioscillum Jiang & Yang, sp. nov. , and A. hippocampus Jiang & Yang, sp. nov. from Yunnan, China are described and illustrated. Atkinsoniella piscioscillum Jiang & Yang, sp. nov. is similar to A. yani Yang, Meng & Li, 2017 in appearance, but can be distinguished by the color of the legs, the characteristic of the two longitudinal red stripes on the corium, and the morphology of the male genitalia. Atkinsoniella hippocampus Jiang & Yang, sp. nov. is similar to nine Atkinsoniella species, but can be differentiated by the characteristics of aedeagus and subgenital plate. All type specimens of the two new species are deposited at the Institute of Entomology, Guizhou University, Guiyang, China (GUGC).