Genus Brillia

Classification · Identification · Habitat · Remarks · Works Cited

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Diptera (Flies)

No Taxon ("Nematocera" (Non-Brachycera))

Infraorder Culicomorpha (Mosquitoes and Midges)

Family Chironomidae (Non-biting Midges)

Subfamily Orthocladiinae

No Taxon (Primitive Orthocladiinae)

Genus Brillia

Identification

Wings hairy, R-M crossvein long and appearing as the base of R4+5.

Habitat

"Brillia larvae are almost always associated with submerged allochthonous wood and leaves, and may be found in springs, streams, rivers and the littoral margins of lakes."(1)

Remarks

Key to the Nearctic Species of Brillia Kieffer

From "Type Specimens of Chironomidae (Diptera) in the Cornell University Collection", James E. Sublette, Journal of the Kansas Entomological Society vol. 40 no. 4 (Oct. 1967) p. 494, added notes in [] by John F. Carr

1. With two lobes on the basistyle of the male genitalia → 2

1'. With a single proximal lobe on the basistyle → 3

2. Proximal bifurcation of dististyle spatulate [length 6 mm] → Xylotupus par (Coquillett) [formerly B. par]

2'. Proximal bifurcation of dististyle acuminate → B. annuliventris (Malloch)

3. Rami of dististyle subequal in length [mesonotum yellow marked with dark brown, abdomen dark brown, legs yellow, length 3 mm] → B. parva Johannsen

3'. Rami of dististyle unequal → 4

4. Scutellum and abdomen yellow; fore leg ratio, 1.0 → B. sera Roback

4'. Scutellum brown to blackish brown; abdomen vittate; leg ratio 0.90 or less → 5

5. Thoracic and abdominal markings brown; antennal ratio, 1.7 [length 3 mm] → B. flavifrons (Johannsen)

5'. Thoracic and abdominal markings blackish; antennal ratio, 2.5 → B. longifurca (Kieffer)

Some species have been described or transferred since this key was written. The large species B. par was moved to Xylotopus.

Works Cited

1.	Identification Manual for the Larval Chironomidae (Diptera) of North and South Carolina

Contributed by John F. Carr on 12 May, 2009 - 7:13pm
Last updated 14 November, 2009 - 3:13pm

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