Phylogeny of the Subtribe Monoctonina (Hymenoptera, Braconidae, Aphidiinae)

A new species of genus Monoctonus (Hymenoptera, Braconidae, Aphidiinae) from South Korea

Background

The genus Monoctonus Haliday, 1833 is a small group which consists of 24 species worldwide. In South Korea, Chang and Youn (1983) recorded one species, M.similis Starý & Schlinger, 1967, but the evidence for identification of this species is doubtful and further confirmation is required (personal communication with Prof. Jong-Cheol Paik).

New information

An additional Monoctonus species is recorded as new to science from South Korea. Descriptions and illustrations of the new species -Monoctonuskoreanus sp. nov. - are provided, together with its mitochondrial cytochrome c oxidase subunit I (COI) data and phylogenetic position. A key to the female of the two species present in Korea is provided.

Two new species of subtribe Monoctonina Mackauer from Europe (Hymenoptera, Braconidae, Aphidiinae)

Falciconus hispanicus sp. n. and Monoctonus montenegrinus sp. n. are described as new members of the subtribe Monoctonina from Spain and from high mountain habitats of Montenegro, respectively. The main diagnostic characters of the newly described species and their host plant-host aphid associations are discussed.

Sizing the Knowledge Gap in Taxonomy: The Last Dozen Years of Aphidiinae Research

Simple Summary

Taxonomy is a biological discipline with the task to identify, name, and describe organisms, and as such, it provides necessary data for all other biological disciplines. The biodiversity crisis through which we are living draws attention to the crucial role of taxonomy in biology today. At the same time, the scientific community, as well as society in general, has become more aware of the difficulties associated with taxonomy, such as gaps in taxonomic knowledge, a lack of taxonomic infrastructure, and an insufficient number of taxonomic experts (“taxonomic impediment”). With this study, we tried to size this knowledge gap by analyzing the taxonomical studies on Aphidiinae (Hymenoptera: Braconidae) conducted from 2010 to 2021. Aphidiinae are endoparasitoids of aphids; a single specimen completes its development inside the living aphid host, which are used in biological control programs. Here, we summarize the knowledge gathered over the last dozen years and discuss it in a general context.

Abstract

Taxonomic impediment is one of the main roadblocks to managing the current biodiversity crisis. Insect taxonomy is the biggest contributor to the taxonomic impediment, both in terms of the knowledge gap and the lack of experts. With this study, we tried to size the knowledge gap by analyzing taxonomical studies on the subfamily Aphidiinae (Hymenoptera: Braconidae) conducted from 2010 to 2021. All available taxonomic knowledge gathered in this period is critically summarized: newly described species, detection of alien species, published identification keys, etc. All findings are discussed relative to the current state of general taxonomy. Future prospects for taxonomy are also discussed.

Social Determinants of Health, Goals and Outcomes in High-Risk Children With Type 1 Diabetes

OBJECTIVES

Despite advances in technology and type 1 diabetes (T1D) care, children from low-income families continue to have suboptimal outcomes and increased health-care utilization. In this study, we describe social determinants of health (SDOH) in high-risk children with T1D, as well as their SDOH-related priority goals, and assess the correlation between SDOH, glycemic control and health-care utilization.

METHODS

Caregivers of children aged 4 to 18 years with a diagnosis of T1D of >1 year, poor glycemic control (glycated hemoglobin [A1C] ≥9.5%) or high health-care utilization (≥2 diabetes-related hospitalizations, emergency department attendances or missed outpatient appointments in the previous year) were included. Primary caregiver health-related quality of life (HRQOL), self-efficacy (Maternal Self-Efficacy in Diabetes [MSED] scale) and SDOH were assessed. Goals were identified after assessment by a community health worker.

RESULTS

Fifty-three families were included, most (n=48, 91%) of whom had government insurance. Children had a median age of 13.4 (interquartile range [IQR], 12 to 15.3) years and a median A1C of 11.1% (IQR, 10% to 13%). Almost half of the families (n=24, 45%) reported at least 1 adverse SDOH. One or more adverse SDOH was associated with significantly lower total HRQOL scores (56.6 [IQR, 38.5 to 70.7] vs 77.8 [IQR, 60.8 to 92.4], p=0.004), but not associated with A1C (p=0.3), emergency department visits (p=0.9) or MSED (p=0.5).

CONCLUSIONS

Screening for adverse SDOH and addressing these barriers to glycemic control is not part of routine T1D care. In children with poorly controlled T1D and high health-care utilization, we have demonstrated a high prevalence of adverse SDOH, which may represent a modifiable factor to improve outcomes in this patient population.

Resolving the Taxonomic Status of Potential Biocontrol Agents Belonging to the Neglected Genus Lipolexis Förster (Hymenoptera, Braconidae, Aphidiinae) with Descriptions of Six New Species

Simple Summary

Lipolexis is small but widely distributed genus across Europe and Asia. Nevertheless, its taxonomic distinctiveness was subsequently questioned by some authors who considered it as a synonym of the genus Diaeretus. Although Lipolexis is widely distributed and one species (Lipolexis oregmae Gahan) is an important biological control agent, the last taxonomic study on it was conducted more than 50 years ago. Our study employs an integrative approach (morphology and molecular analysis (COI barcode region)), to examine Lipolexis specimens that were sampled worldwide, including specimens from BOLD database. It led to the description of six new species. Each of the new species possesses clear morphological characters that distinguishes it from its congeners. Our findings suggest that two groups can be differentiated within the genus—oregmae and gracilis. Furthermore, we present a key for the identification to all known Lipolexis species of the world.

Abstract

Lipolexis is a small genus in the subfamily Aphidiinae represented by one species in Europe (Lipolexis gracilis Förster) and by four in Asia (Lipolexis wuyiensis Chen, L. oregmae Gahan, L. myzakkaiae Pramanik and Raychaudhuri and L. pseudoscutellaris Pramanik and Raychaudhuri). Although L. oregmae is employed in biological control programs against pest aphids, the last morphological study on the genus was completed over 50 years ago. This study employs an integrative approach (morphology and molecular analysis (COI barcode region)), to examine Lipolexis specimens that were sampled worldwide, including specimens from BOLD database. These results establish that two currently recognized species of Lipolexis (L. gracilis, L. oregmae) are actually a species complex and also reveal phylogenetic relationships within the genus. Six new species are described and a global key for the identification of Lipolexis species is provided.