DipteraMycetophilidae – Fungus Gnats

Leia ventralis

This record describes Leia ventralis (species). Recorded family: Mycetophilidae. Recorded order: Diptera.

Identification and Appearance

Leia ventralis - Leia ventralis
Contributed by tom murray; Additional contributions by Bbarnd
FeatureDescription
Additional detailsFrom Johannsen 1911: Head black; antennae brown, 3 basal joints and the palpi yellow.
ThoraxThorax and abdomen shining black, venter with segments 3 and 4 largely yellow; hairs pale. Coxae, femora, tibiae, and metatarsi yellow remainder of tarsi brown; tip of each hind femur blackish; tibial spurs yellow.
WingsWings whitish hyaline, the broad preapical band nearly reaches the base of the fork of the media. (Fig. 196). Halteres yellow with black knob.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Diptera (Flies)
Superfamily
Sciaroidea
Family
Mycetophilidae (Fungus Gnats)
Subfamily
Leiinae
Genus
Leia

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Geographic Range

Maine to New Jersey.

About Flies: the wider group

Order-level background for Diptera, the group containing Leia ventralis. Species-specific details appear above.

Group overview

Diptera includes over 150,000 described species of flies, mosquitoes, and midges. Mosquitoes are the deadliest animal on Earth (CDC). Malaria alone causes ~249 million cases and over 608,000 deaths annually, mostly children under 5 (WHO). Vector-borne diseases account for over 17% of all infectious diseases, causing 700,000+ deaths per year.

Ecological role of the group

Despite their disease impact, flies are critical decomposers and pollinators. Hoverflies alone pollinate hundreds of crop and wildflower species. Flies are also the primary food source for many birds, bats, and fish. Forensic entomology relies heavily on fly species for crime scene analysis.

Economic and practical significance of the group

In the U.S., vector-borne disease cases tripled between 2004-2016, with over 640,000 cases reported in that period (CDC). Tickborne diseases doubled from 22,000 to 48,000 annual reports. Globally, mosquito-borne diseases cost billions in healthcare and lost productivity.

Recorded sources for this group: WHO, CDC, PNAS. Imported estimates may describe particular regions or reporting periods.

Explore Diptera families and species →

Photos of Leia ventralis (5)

Leia ventralis - photo 1
Contributed by tom murray; Additional contributions by Bbarnd
Leia ventralis - photo 2
Contributed by tom murray; Additional contributions by Bbarnd
Leia ventralis - photo 3
Contributed by tom murray; Additional contributions by Bbarnd
Leia ventralis - photo 4
Contributed by tom murray; Additional contributions by Bbarnd
Leia ventralis - photo 5
Contributed by tom murray; Additional contributions by Bbarnd

Photo credits: Contributed by tom murray; Additional contributions by Bbarnd

Frequently Asked Questions About Leia ventralis

What is Leia ventralis?

Leia ventralis is a species in the family Mycetophilidae, within the order Diptera.

How big is Leia ventralis?

3.5 mm

How do you identify Leia ventralis?
FeatureDescription
Additional detailsFrom Johannsen 1911: Head black; antennae brown, 3 basal joints and the palpi yellow.
ThoraxThorax and abdomen shining black, venter with segments 3 and 4 largely yellow; hairs pale. Coxae, femora, tibiae, and metatarsi yellow remainder of tarsi brown; tip of each hind femur blackish; tibial spurs yellow.
WingsWings whitish hyaline, the broad preapical band nearly reaches the base of the fork of the media. (Fig. 196). Halteres yellow with black knob.
Where is Leia ventralis found?

Range: Maine to New Jersey.

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by tom murray; Additional contributions by Bbarnd. Contributors retain copyright over their individual contributions.