Species Details

Laphria gilva

University of Alberta E.H. Strickland Entomological Museum Read more about this collection »

SeasonalityAdults are found late July to late August and possibly earlier and later in the southern portion of the range (Schmid 1969). IdentificationMedium to large, 15-20 mm in length. Robust flies with a general black appearance as compared to other Laphria spp. Body is mostly black, with the posterior, dorsal end of the abdomen being orange, finely pubescent (covered by hairs), and slender. Legs are black and raptorial. Laphria gilva can be distinguished by abdominal segments three, four, and five being covered dorsally with orange pubescence, and segment six being black (L. gilva can be confused with L. aimatis (McAtee), but is easily distinguished by this black sixth abdominal segment). Thoracic and leg pubescence is sparse and rather inconspicuous, and the setae of the mask and mystax (setae surrounding the pronounced hypopharynx) are uniformly black, and of medium length compared to other Laphria spp. Superior forceps of the male genitalia are each provided with two lamellar appendages (McAtee 1919; Adisoemarto 1967).

Scientific Name Laphria gilva Seasonality Adults are found late July to late August and possibly earlier and later in the southern portion of the range (Schmid 1969). Identification
Medium to large, 15-20 mm in length. Robust flies with a general black appearance as compared to other Laphria spp. Body is mostly black, with the posterior, dorsal end of the abdomen being orange, finely pubescent…
Medium to large, 15-20 mm in length. Robust flies with a general black appearance as compared to other Laphria spp. Body is mostly black, with the posterior, dorsal end of the abdomen being orange, finely pubescent (covered by hairs), and slender. Legs are black and raptorial. Laphria gilva can be distinguished by abdominal segments three, four, and five being covered dorsally with orange pubescence, and segment six being black (L. gilva can be confused with L. aimatis (McAtee), but is easily distinguished by this black sixth abdominal segment). Thoracic and leg pubescence is sparse and rather inconspicuous, and the setae of the mask and mystax (setae surrounding the pronounced hypopharynx) are uniformly black, and of medium length compared to other Laphria spp. Superior forceps of the male genitalia are each provided with two lamellar appendages (McAtee 1919; Adisoemarto 1967).
Life History
Species of the genus Laphria do not exhibit courtship behaviors. Laphria gilva males establish mating areas around tree trunks and chase and grapple with females and other males that enter this area. Other males are…
Species of the genus Laphria do not exhibit courtship behaviors. Laphria gilva males establish mating areas around tree trunks and chase and grapple with females and other males that enter this area. Other males are apparently released without harm. Females, upon being charged, are knocked to the ground and mounted. The coupled pair then flies to a perch location where mating continues tail-to-tail. Female Laphria gilva oviposit in the crevices of bark or downed wood. Larval stages live in soil and rotting wood, and their biology is poorly understood, though they are currently thought to be predacious on eggs and larvae of other insects (Hull 1962; Schmid 1969; Wood 1981).
Conservation Conservation is not a concern for Laphria gilva. Diet Info See genus page. Range
Laphria gilva is found holarctically; in the nearctic from the Yukon and Alaska to Quebec and Nova Scotia, and southerly from California, Colorado, and Arizona to Michigan, New York, and Massachusetts; in Eurasia from…
Laphria gilva is found holarctically; in the nearctic from the Yukon and Alaska to Quebec and Nova Scotia, and southerly from California, Colorado, and Arizona to Michigan, New York, and Massachusetts; in Eurasia from Great Britain to Siberia (Adisoemarto 1967; Cannings 1994, 1997).
Laphria gilva
Laphria gilva

Citation

Page Citation for Laphria gilva

Page Citation

"Laphria gilva, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-33846. Accessed 12 May. 2021.

Taxonomic Hierarchy

Kingdom Animalia Phylum Arthropoda Class Hexapoda Subclass Insecta Order Diptera Family Asilidae Genus Laphria Species Laphria gilva
This hierarchy is created from our museum records, it may not always accurately reflect modern taxonomies.

Taxonomic Hierarchy for University of Alberta E.H. Strickland Entomological Museum