Habronyx

Males can be distinguished from some related genera by the spined aedeagus; certain other genera possess a smooth aedeagus. Species-level identification requires examination of morphological characters not detailed in available sources.

Adults of most species are approximately 30 mm in length. Like all ichneumonids, males possess genitalia consisting of a capsule formed by two lateral gonosquamae. The membranous part of the aedeagus bears small spines, a feature shared with several related genera.

Recorded from Europe, Australia, and North and South America. The genus has been documented in Peru and Ecuador, representing new country records. Absent from the Afrotropical realm. GBIF records confirm presence in Denmark, Norway, and Sweden.

• Paracles tapina (Erebidae: Arctiinae) - hostReared from this host for H. (Habronyx) nigrofasciata; first documented host record for the genus in the region

Eggs consist of an equatorial disc and caudal stalk, thought to function in attachment to the host caterpillar's integument. Larvae develop internally within the host, consuming it from the inside, and emerge as adults from the deceased caterpillar.

Females pierce Lepidopteran larvae with their ovipositor to deposit eggs internally.

Internal parasitoid of Lepidopteran larvae. Functions as a biological control agent of caterpillar populations.

• Other Anomaloninae genera with smooth aedeagusHabronyx males possess spines on the membranous part of the aedeagus, distinguishing them from genera with smooth aedeagus

• parasitoid
• ichneumonidae
• lepidoptera
• caterpillar parasite
• internal parasite

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• Habronyx Förster (Hymenoptera: Ichneumonidae: Anomaloninae) in Peru and Ecuador: three new species, a range extension, and a new host record