Ocyptamus stenogaster

Mengual, Ximo, Miranda, Gil Felipe G. & Thompson, F. Christian, 2018, Unraveling Ocyptamus and the Baccha legacy (Diptera: Syrphidae): redefinition of groups and new species descriptions, Zootaxa 4461 (1), pp. 1-44: 12

publication ID

https://doi.org/10.11646/zootaxa.4461.1.1

publication LSID

lsid:zoobank.org:pub:C0F0C0EF-D22C-47ED-9400-F50A8E122DD0

persistent identifier

http://treatment.plazi.org/id/4C610E46-E462-FF8E-FF0F-FB7C086DB4EA

treatment provided by

Plazi

scientific name

Ocyptamus stenogaster
status

 

Ocyptamus stenogaster  species group

Figs 70 View Figure , 84 View Figure , 92, 94, 95, 97 View Figure .

Baccha obscuricornis  species group. Hull (1949a).

Baccha victoria  species group, in part. Hull (1949a).

Ocyptamus stenogaster  species group. Thompson (1981), Mengual et al. (2012), Miranda et al. (2016).

Diagnosis. Facial tubercle medially positioned and pointed. Alula absent. Metathoracic epimera extended medially and dorsally to metacoxae, almost meeting. Abdomen very narrow, long and delicate (2nd abdominal segment ḵ 8 times longer than wide).

Biology. Larvae of this species group have been reported feeding on mealybugs ( Hemiptera  : Pseudococcidae  ) ( Löhr et al. 1990; Rojo et al. 2003; Prado et al. 2015).

Comments. Mainly Neotropical, two species in Florida ( U.S.A.). Flies with a very narrow second abdominal segment. The typical flies of this group have a pointed facial tubercle, positioned medially on the face, a rugose frons/frontal triangle, and a wholly pale scutellum. Some species deviate from these characters, having a more globose and ventrally positioned tubercle, smooth frons/frontal triangle and black scutellum, but overall agree with the group’s diagnosis to the point of the distinct extended metathoracic epimera (unique among the groups mentioned here). Nevertheless, it seems likely that there are more inclusive groupings within this taxon. 

Species list (15): O. argentinus ( Curran, 1939)  , O. deceptor ( Curran, 1930a)  , O. filiola ( Shannon, 1927)  , O. filissima ( Hull, 1943b)  , O. harlequinus ( Hull, 1948)  , O. hyacinthia ( Hull, 1947a)  , O. macer ( Curran, 1930a)  , O. mara ( Curran, 1941)  , O. oenone ( Hull, 1949a)  , O. provocans ( Curran, 1939)  , O. rugosifrons ( Schiner, 1868)  , O. stenogaster ( Williston, 1888)  , O. tenuis ( Walker, 1852)  , O. titania ( Hull, 1943b)  , O. zephyrea ( Hull, 1947b)  .

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Syrphidae

Genus

Ocyptamus