Cremnops

Förster, 1862

Pegasus wasps

Species Guides

Cremnops is a of braconid wasps in the Agathidinae, commonly called 'Pegasus ' due to their distinctive elongated, horse-like shape. These relatively large braconids (6–10 mm) are known of caterpillars in the Pyralidae and Crambidae. The genus occurs in terrestrial worldwide, with documented in North America, Europe, Japan, and the Middle East. Thirty-three New World species have been revised, including five described in 2015.

Cremnops desertor by Peter Desmet. Used under a CC0 license.

Pronunciation

How to pronounce Cremnops: /krɛmˈnɒps/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Distinguished from other braconids by the combination of: relatively large size (6–10 mm), elongate horse-like with narrow extended rostrum, and often red-and-black coloration with smoky wings. The extended separates Cremnops from most other Braconidae, though it can be confused with other Agathidinae such as Agathis and Bassus, which share the narrow, extended facial structure. Accurate genus-level identification often requires microscopic examination; electron microscopy may be necessary for definitive determination.

Images

Appearance

Relatively large braconid wasps, 6–10 mm in length. Distinctive elongate, equine-like with a narrow, extended (rostrum) that has been compared to a horse's snout. Often colorful, with red and black coloration and black or smoky wings. Wings present and functional. Body shape and head superficially resemble the mythological winged horse Pegasus.

Habitat

Terrestrial worldwide. Frequently observed on flowers, where they use elongated mouthparts to probe for nectar.

Distribution

Documented from North America, Europe, Japan, and the Middle East. New World fauna comprehensively revised with 33 treated. GBIF records indicate presence in Denmark, Norway, and Sweden.

Diet

feed on nectar obtained from flowers using elongated mouthparts. Larvae are internal of caterpillars.

Host Associations

Pyralidae - larval
Crambidae - larval ; often of biological/agricultural concern

Life Cycle

Females hunt caterpillars and lay inside them. Typically one larva develops as an internal per caterpillar, though some are gregarious with several larvae sharing the same host. Development occurs within the living host until .

Behavior

are frequent visitors to flowers, a that sets them apart from most other braconids. Females actively hunt caterpillar for oviposition. Defends plants under lepidopteran attack through activity.

Ecological Role

agent: of caterpillars in Pyralidae and Crambidae, including of agricultural concern. Acts as a defender of plants against lepidopteran herbivory.

Human Relevance

Occasionally employed as agents. Subject of ongoing taxonomic research; five new described from museum collections in 2015, highlighting the importance of curated collections for biodiversity discovery.

Similar Taxa

AgathisShares the narrow, extended characteristic of Agathidinae; similar size range and coloration
BassusShares the narrow, extended characteristic of Agathidinae; historically confused with Cremnops and related
LytopylusRecently resurrected split from Bassus; similar agathidine

More Details

Taxonomic history

The New World were comprehensively revised in 2015 (Zootaxa 3916), with five new species described from museum collections: C. bertae, C. cluttsis, C. nymphius, C. wileycoyotius, and C. witkopegasus. Six species were synonymized and C. florissanticola was transferred to Bracon.

Etymology and naming

The 'Pegasus ' was proposed by researchers due to the resemblance of specimens to the mythological winged horse, including the elongate and wings. have been named after cultural references, including C. witkopegasus (Crazy Horse, Lakota leader; 'witko' = crazy) and C. wileycoyotius (Wile E. Coyote, for its 'sneaky' undescribed status).

Research significance

The 2015 revision highlighted that millions of specimens in museums worldwide remain unidentified due to insufficient taxonomist capacity. Four of five new were discovered in existing U.S. museum collections rather than field collections.