Micropeza stigmatica
This record describes Micropeza stigmatica (species). Recorded family: Micropezidae. Recorded order: Diptera.
Identification and Appearance

A predominantly tawny to reddish species with: two black bands on each femur; pale arista; and characteristic markings on the thorax. A detailed description by Cresson appears here (under Neriocephalus stigmaticus ). From the 1972 reference by Merritt & James : This species differs from all others [in Micropeza ] in having two distinct black rings on each femur, one disto-median and one sub-apical. The characteristic brown markings of the thorax (fig. 39) and the shape of the claspers (fig.40) will also aid in identification. (But note See Also below.) Although the illustration in Fig. 17 of Table 9 from Biologia Centrali-Americana: Insecta. Diptera. Vol 2 (1883-1903) shows substantial black on the abdomen and thorax...the description in that work states males have abdomen varying from testaceous or rufous with yellow hind margins, to nearly black with white margins. Moreover, the description of the synonym Neriocephalus stigmaticus in Cresson's 1938 treatment of the genus for taxa north of Mexico states this species is recognized by its reddish color, without any blackish markings except on the halteres and legs. So the black on the the abdomen and thorax in Fig. 17 are not typical of M. stigmatica in our area.
Wikipedia reference for Micropeza stigmatica: http://en.wikipedia.org/wiki/Micropeza_stigmatica.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Diptera (Flies)
- Superfamily
- Nerioidea
- Family
- Micropezidae (Stilt-legged Flies)
- Subfamily
- Micropezinae
- Genus
- Micropeza
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
AZ, NM, KS, TX, s. to Argentina . Now recorded from CA in this post .
About Flies: the wider group
Order-level background for Diptera, the group containing Micropeza stigmatica. 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.
Photos of Micropeza stigmatica (3)
Photo credits: Contributed by John F. Carr; Additional contributions by Aaron Schusteff
Frequently Asked Questions About Micropeza stigmatica
What is Micropeza stigmatica?
Micropeza stigmatica is a species in the family Micropezidae, within the order Diptera.
How do you identify Micropeza stigmatica?
A predominantly tawny to reddish species with: two black bands on each femur; pale arista; and characteristic markings on the thorax. A detailed description by Cresson appears here (under Neriocephalus stigmaticus ). From the 1972 reference by Merritt & James : This species differs from all others [in Micropeza ] in having two distinct black rings on each femur, one disto-median and one sub-apical. The characteristic brown markings of the thorax (fig. 39) and the shape of the claspers (fig.40) will also aid in identification. (But note See Also below.)
Where is Micropeza stigmatica found?
Range: AZ, NM, KS, TX, s. to Argentina . Now recorded from CA in this post .
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