Chrysotoxum
Sign in to savethumbnail|right|Female Chrysotoxum bicinctum The genus Chrysotoxum (Meigen, 1803) consists of large, wasp-mimicking species. The adults are distinguished by very long antennae, oval abdomen with yellow stripes, and yellow patterns on the thoracic pleurae (sides of the thorax). The species of Chrysotoxum are chiefly Holarctic in distribution. . The species in this genus, are mostly very uniform in structure and colour and are separated with difficulty. Larvae are specialized in preying upon root aphids associated with ant nests.
Species
GENUS
- KingdomAnimalia
- PhylumArthropoda
- ClassInsecta
- OrderDiptera
- FamilySyrphidae
Chrysotoxum es un género de moscas de la familia de los sírfidos.[1] La mayoría se encuentra en el Paleártico; hay algunas especies en el Neártico. Tienen un diseño vistoso, negro y amarillo. Antenas relativamente largas. El género es fácil de identificar, no así las especies,[2] Especies Chrysotoxum amurense Violovitsh, 1973 [3] Chrysotoxum arcuatum (Linnaeus, 1758) Chrysotoxum asiaticum Becker, 1921 Chrysotoxum bactrianum Violovitsh, 1973[3] Chrysotoxum bajkalicum Violovitsh, 1973[3] Chrysotoxum bicinctum (Linnaeus, 1758) Chrysotoxum caucasicum Sack, 1930 Chrysotoxum cautum (Harris, 1776) Chrysotoxum chakassicum Violovitsh, 1975 Chrysotoxum chinook Shannon, 1926 Chrysotoxum cisalpinum Róndani, 1845 Chrysotoxum coreanum Shiraki, 1930 Chrysotoxum derivatum Walker, 1849[4] Chrysotoxum elegans Loew, 1841 Chrysotoxum fasciatum (Müller, 1764)[4] Chrysotoxum fasciolatum (De Geer, 1776) Chrysotoxum festivum (Linnaeus, 1758) Chrysotoxum flaveolum Violovitsh, 1973[3] Chrysotoxum flavifrons Macquart, 1842[4] Chrysotoxum fratellum Shannon, 1926 Chrysotoxum gracile Becker, 1921 Chrysotoxum graciosum Violovitsh, 1975 Chrysotoxum grande Matsumura, 1911 Chrysotoxum hameleon Violovitsh,
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Article
3 sectionsContents
- Taxonomy
- Species
- References
thumbnail|right|Female Chrysotoxum bicinctum The genus Chrysotoxum (Meigen, 1803) consists of large, wasp-mimicking species. The adults are distinguished by very long antennae, oval abdomen with yellow stripes, and yellow patterns on the thoracic pleurae (sides of the thorax). The species of Chrysotoxum are chiefly Holarctic in distribution. . The species in this genus, are mostly very uniform in structure and colour and are separated with difficulty. Larvae are specialized in preying upon root aphids associated with ant nests.
==Taxonomy== Chrysotoxum is the only genus in the tribe Chrysotoxini Features common to this genus are: The head is slightly wider than the thorax. The eyes are more or less pubescent and are contiguous (contacting each other medially) in males and widely separated in females. They have a prominent or angular frons and antennae base, features best seen in profile. The face is slightly concave. The antennae are long and erect, inserted on the frontal angle, with the first two segments nearly equal, and the third one (flagellum) is three to six times longer than the previous ones. Abdomen strongly convex dorsally, very deeply margined. Abdomen strongly convex dorsally, very deeply margined. The wings have the median transverse vein located before the middle of the discal cell. The wing vein R4+5 clearly dipped into cell r4+5.