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Hedychridium tyrrhenicum Strumia, 2003


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Chorology: Italian-continental
Chorology: Italian-continental
Italian distribution of Hedychridium tyrrhenicum
Italian distribution







 

Help AiutoSystematic position of Hedychridium tyrrhenicum Strumia, 2003

Subfamily & Tribe Chrysidinae (Elampini) Size (mm)
Size (mm):
 
Genus & species Hedychridium tyrrhenicum Strumia, 2003
Species group monochroum
Original combination Hedychridium tyrrhenicum Strumia, 2003
Type series  
Original description Color: pronotum bronze-red without black dot or central and transverse stripe (over 95% of individuals), head vertex, mesonotum and scutellum bronze-red to pink-red, central part of mesonotum often partially black, facial cavity green or golden green, rarely bronze-red, metanotum green-gold to bronze-red; mesopleuron from bronze-red to green-gold; femora and tibiae from bronze-red to bronze-green, tarsi brown. T-I color ranges from bronze-red to golden-green without trace of black stripe or dots near the posterior margin. T-II of the same color as T-I but with a large central black dot starting from the anterior margin but not reaching the posterior one. T-III variable in color from bronze-red to green with red or gold shining, sternum mostly metallic bronze to bronze-green (Fig. 1, 2). Antennae normal, not expanded; scape metallic bronze; pedicel and flagellum black; F-I 1/w = 3.0; length ratio F-I/P = 1.4; length ratio F-I/F-II = 1.5 to 1.7; flagellomere from F-IV on 1/w > 1.
Face oval in shape in frontal view, facial W/H = 1.45; punctures on frons and vertex reticulate PD = 0.4 MOD, TFC absent. Scapal basin with coarse punctures laterally (PD = 0.4 MOD), and a few coarse and transverse striae in the middle, Clypeus short, 0.9 MOD; malar space short (1.0 MOD) and strongly converging. Mandible dark, brown at center, with two additional teeth. IOA smaller than 90° (for 54 Corso-Sardinian individuals the average is IOA = 84.6°, SD = 1.7°, for the 11 Maltese islands specimens IOA = 85.7°, SD = 1.1°; for the 18 Sicilian specimens IOA = 87.3°, SD = 2.3°). IOD smaller than OOD, and vertex with the occipital angles rounded.
Pronotum slightly converging on anterior border; punctures on pronotum, mesonotum and scutellum reticulate to close (PD = 0.4 MOD), uniform; notauli parallel. Metanotum punctures reticulate, uniform PD = 0.5 MOD, metanotum as long as scutellum; mesopleuron rounded ventrally, with punctures simple, close to reticulate, uniform, PD = 0.3-0.4 MOD. Lateral propodeal angle acute and pointing outward. Pronotum to scutellum length ratio 1.1; head to pronotum width ratio 1.2; anterior femora simple, without ventral longitudinal carina.
Wings light brown, veins brown; tegulae metallic bronze; median vein M nearly straight; Rs =1.2 times stigma length; Cu not sclerotized; posterior wings with 5-6 hamuli. Abdomen markedly convex, short, 1/w = 1.05, without longitudinal or transverse carinae, punctures simple, uniform, close to reticulate, PD = 0.2-0.3 MOD, posterior margin of T-III round, smooth and canaliculated. The punctures on S-II are numerous, sparse and deep, PD = 0.2 MOD. Pubescence on all body white and short, less than 1 MOD in length. Sexual dimorphism absent, only the male posterior margin of T-III more round and S-IV less visible.
The male genital capsule is similar to that of monochroum, but the males from the Corso-Sardinian region have a different paramere internal margin as shown in Figure 3. The individuals from this region (including Asinara, Capraia, and Montecristo) appear to be a uniform group with facial cavity, mesopleuron and metanotum prevalently golden green to green.
Individuals from the Maltese islands are more or less entirely red-bronze in color, including the central part of mesonotum, that is, on the contrary, stained more or less black in the Corso-Sardinian individuals. Such differences are possible evidence of two distinct subspecies. The individuals from Sicily are unfortunately known only from a single locality near Selinunte and show a color range from pink-red, close to those from the Maltese islands, to more greenish where only the scutellum is bronze-red in color, the remainder being a mixture of bronze and green. In the same locality, the only known to me from Sicily, also 8 specimens of H. monochroum were found. Two additional individuals showed mixed characters and the presence of hybrids cannot be ruled out.
Synonymy  
Systematic notes  

Help AiutoGeographic distribution of Hedychridium tyrrhenicum Strumia, 2003

World distribution
Type locality Italy and Malta.
Localities: 1) from Maltese islands, 11 specimens: 1 f St. Marija Bay, Comi-no, 13-VII-1976; 2 f St. Thomas Bay, Malta, 26-VII-1977; 1 m and 2 f Wied Mistra, 13-VIII-1997, Malta; 1 m Ghasti Wied Lunzjata, 20-VIII-1996, Malta; 4 f Marsalforn, 27/28-IX-1980, Gozo; 2) from Sardinia, 21 specimens: 5 f Elmas (Cagliari), 01/02- IX-1993; 2 m Quartu St. Elena (Cagliari), 01-IX-1993; 2m 1 f Geremeas (Cagliari), 01-IX-1993; 1 f Stintino (Sassari), 08-IX-1993; 1 f Berchidda, 490 m. a.s.l., (Sassari), summer 2000 and 16 f 04-VI/30-VIII-2002, Malaise trap (40° 47.49' N 9° 08.87' E); 1 f Luras, 450 m. a.s.l., (Sassari), Malaise trap (40°56.84' N 9°09.65' E), 17/31-VIII-2000; 3) from Asinara: 1 m 5 f, VIII-1903, legit S. Folchini; 2 m and 11 f Fornelli Malaise trap (40°59.48' N 8°l4.73' E) 11-VI/09-X-2002; 4) from Corsica, 29 specimens: 2 m 6 f, Moltifao near the bridge on the Asco river, Pan trap, 08/10-VII-1998; 1 m La Marana, Casone, Pan trap, 01/04-VII-1997; 1m Piana, River Tartagine, 09-VI-1997; Castirla, River Golo, Malaise trap (42°22.91' N 9°09.08' E), 1 m and 7 f 11-VI/16-VIII-1999; 5 f 24-VI/24-VII-2000, 2 f 05-VI/01-VIII-2002, 5 f Cuttoli, Malaise trap (41°57.85' N 8°50.83' E), 15-VII/15-VIII-2001; 5) from Montecristo, Malaise trap: 2 f 25-VII/25-VIII-1999, 1 f 30-VI/15-VII-2000, 1 f 1/15-VII-2001; 6) from Capraia, Malaise trap, 25 specimens: 1 f 30-VI/31-VII-2000; 1 f 03/15-VII-1999 (I Pollai: 43°02.17' N 9°50.02' E), 1 m and 8 f 06/22-VI-2002, 8 f 22-VI/08-VII-2002, 6 f 08/23-VII-2002 (San Rocco: 43°02.63' N 9°50.54r E); 7) from Sicily 18 specimens: 1 f Selinunte (Trapani), 12-VI-1983; 2 m and 15 f, Foce del Modione, Selinunte (Trapani), 10-VIII-1985; 8) from Ustica: 2 f, 17 and 18-VII-1984.
Kimsey & Bohart  
Linsenmaier  
Other Authors  
Chorology Italian-continental
Distribution notes  
Italian distribution according to the Checklist of the species of the Italian Fauna
Macroregion North (N): FALSE South (S): TRUE Sicily (Si): TRUE 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 TRUE Strumia, 2003; Strumia, 2005; 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 TRUE Strumia, 2003; Strumia, 2005; FALSE
Sardegna|Sardinia TRUE Strumia, 2003; Strumia, 2005; TRUE
Distribution notes known from island and continental Italy.

Help AiutoBiology of Hedychridium tyrrhenicum Strumia, 2003

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  
Plants for rest/refuge  
Parasites  
Biological notes  

For citation purposes:

Agnoli G.L. & Rosa P., 2017 : Hedychridium tyrrhenicum Strumia, 2003 . In: Chrysis.net Database of the Italian Chrysididae, interim version 21 August 2017 . URL: http://www.chrysis.net/database/.