Skip to content

Your web resource on Hymenoptera Chrysididae and Macrophotography

Trichrysis baratzsensis Strumia, 2009

Trichrysis baratzsensis  Strumia, 2009
Image(s)
Chorology: Sardinian
Chorology: Sardinian
Italian distribution of Trichrysis baratzsensis
Italian distribution







 

Help AiutoSystematic position of Trichrysis baratzsensis Strumia, 2009

Subfamily & Tribe Chrysidinae (Chrysidini) Size (mm)
Size (mm):
 
Genus & species Trichrysis baratzsensis Strumia, 2009
Species group  
Original combination Trichrysis baratzsensis
Type series Holotypus ♀ (coll. Strumia)
Original description [From: Strumia F., 2009 - Trichrysis baratzsensis sp. nov. (Hymenoptera: Chrysididae) from Sardinia. Zootaxa 2318: 589–595 (2009).]

Diagnosis. Distinctive features of the new species (Fig. 1) are the shape of the distal margin of TIII, the absence of the pronotal lateral carina, the carina around the compound eye, and the two isolated and not touching black spots on STII, that are, on the contrary, touching or fused together in all other studied species of the genus (see also the key at end of this paper).

Description. Body length 4.3 (paratype) to 5.9 mm (holotype and paratype). Colour. Body blue-green as in other species of the genus. Dark blue at base of central part of mesonotum, between ocelli and at base of TII; body pubescence short and white. Fore wings slightly brown-stainted. Antenna black in colour with pedicel and FI metallic green. Legs metallic green; first tarsomere of anterior leg metallic green as tegulae. Head. Elevated carina all around compound eye (Fig. 7). Facial cavity deep, finely, irregularly and transversally striate; malar space as long as FII. Mandible simple, without additional teeth. Thorax. Pronotum lacking lateral carina and with a weak groove in the middle of anterior edge. Punctures on mesonotum and scutellum large with smooth shining areas and smaller punctures in between. Radial cell of fore wings narrow, long and closed. Propodeal angle obtuse, pointing backward. Abdomen. Anterior declivity of TI with two grooves delimiting two anterior humps. Punctures on TII smaller than on thorax, becoming smaller distally. TIII saddled in shape, with smaller punctures than TII. Distal margin of TIII tridentate; spaces between teeth strongly convex, almost forming additional obtuse teeth (Figs 1, 5). Sternal black spots on SII small and isolated from one another: not touching as in other Mediterranean species.
Synonymy  
Systematic notes [from: Strumia, 2009] Only three species were previously recorded from the Mediterranean region: Trichrysis cyanea (Linnaeus, 1758), Trichrysis lacerta (Semenov-Tyan-Shanskii & Nikolskaya, 1954) and Trichrysis scioensis Gribodo, 1879. Trichrysis cyanea is widespread in the Palaearctic region,Trichrysis lacerta is known from Greece, Cyprus, Turkey, the Caucasus and Egypt, whereas Trichrysis scioensis Gribodo, 1879 is an Afrotropical species reaching also Egypt and Palestine (Lisenmaier 1999). Trichrysis cypria (Mocsáry, 1902) from Cyprus is a synonym of Trichrysis lacerta. Linsenmaier (1959: 170) found that the name Chrysis cypria Mocsáry, 1902 was preoccupied by Chrysis pyrrhina cypria Buysson, 1897 from Cyprus (Buysson 1897: 555, pl. 19, fig. 11), and renamed the species as C. devia. More recently, Linsenmaier (1968) discovered that the same species had been previously described by Semenov-Tyan-Shanskii and Nikolskaya (1954: 122) as C. lacerta (thus lacerta is the valid name, devia and cypria are synonyms: Linsenmaier 1999: 227).

Help AiutoGeographic distribution of Trichrysis baratzsensis Strumia, 2009

World distribution
Type locality Lake Baratz (Sassari province, Sardinia, Italy); 40° 40', 61 N -- 8°16', 64 E; 30 m; 15-30.VIII.2002
Kimsey & Bohart  
Linsenmaier  
Other Authors  
Chorology Sardinian
Distribution notes  
Italian distribution according to the Checklist of the species of the Italian Fauna
Macroregion North (N): FALSE South (S): FALSE Sicily (Si): FALSE Sardinia (Sa): TRUE
Endemic TRUE
Italian distribution by Administrative Region (Personal evidences, Literature records and other sources)   
Adm. Region Literature records Personal records
Piemonte|Piedmont FALSE FALSE
Valle d'Aosta|Aosta V. FALSE FALSE
Lombardia|Lombardy FALSE FALSE
Trentino Alto Adige FALSE FALSE
Veneto FALSE FALSE
Friuli V.G. FALSE FALSE
Liguria FALSE FALSE
Emilia Romagna FALSE FALSE
Toscana|Tuscany FALSE FALSE
Umbria FALSE FALSE
Marche FALSE FALSE
Lazio FALSE FALSE
Abruzzo FALSE FALSE
Molise FALSE FALSE
Campania FALSE FALSE
Puglia|Apulia FALSE FALSE
Basilicata FALSE FALSE
Calabria FALSE FALSE
Sicilia|Sicily FALSE FALSE
Sardegna|Sardinia TRUE Strumia, 2009 TRUE
Distribution notes Trichrysis cyanea and Trichrysis baratzsensis coexist in Sardinia.

Help AiutoBiology of Trichrysis baratzsensis Strumia, 2009

Known Hosts
Polyphagous
FALSE
 
Tenthredinidae
FALSE
Vespidae
FALSE
Eumenidae
FALSE
Masaridae
FALSE
Sphecidae
FALSE
Apidae
FALSE
Colletidae
FALSE
Halictidae
FALSE
Megachilidae
FALSE
Anthophoridae
FALSE
Lepidoptera
FALSE
Notes on Hosts
Known Habitat
Habitat Strumia (2009) reports that Trichrysis baratzsensis was collected exclusively with a Malaise trap placed near the sandy shore of the Lake Baratz, the only natural lake in Sardinia.
Plants for rest/refuge  
Parasites  
Biological notes Strumia (2009) reports that the abundance of Trichrysis baratzsensis vs. Trichrysis cyanea during the survey in the years 2001–2005 was of 3 vs. 47 specimens, respectively.

For citation purposes:

Agnoli G.L. & Rosa P., 2017 : Trichrysis baratzsensis Strumia, 2009 . In: Chrysis.net Database of the Italian Chrysididae, interim version 23 July 2017 . URL: http://www.chrysis.net/database/.