Striastigmus Rasplus, Boehmova & Jansta, 2022
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publication ID |
https://dx.doi.org/10.3897/jhr.90.82582 |
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publication LSID |
lsid:zoobank.org:pub:9B6E1A56-2D68-412B-A71C-D3C9EF69BA1F |
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persistent identifier |
https://treatment.plazi.org/id/B00DD03F-2562-477C-A3BE-115CA5213C44 |
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taxon LSID |
lsid:zoobank.org:act:B00DD03F-2562-477C-A3BE-115CA5213C44 |
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treatment provided by |
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scientific name |
Striastigmus Rasplus, Boehmova & Jansta |
| status |
gen. nov. |
Striastigmus Rasplus, Boehmova & Jansta gen. nov.
Fig. 1A-G View Figure 1
Type species.
Striastigmus bicoloratus Rasplus, Böhmová & Janšta, sp. nov., by present designation.
Etymology.
The generic name is composed of the Latin prefix stria, referring to the dense striation covering most of the body and stigmus referring to the large stigma of Megastigmidae . Masculine gender.
Diagnosis.
Recognized from other Megastigmidae by having circular head shape with concentric striated sculpture on most of face (Fig. 1D View Figure 1 ). Toruli situated low on head with lower margin slightly above lower margin of eyes (Fig. 1D View Figure 1 ). Scrobes shallow, smooth and narrowly triangular, not reaching median ocellus (Fig. 1D View Figure 1 ). Most setation on upper face long and black, shorter and white on lower face. Gena smooth and shiny (Fig. 1C View Figure 1 ). Occipital carina raised, sharp, its dorsal part reaching vertex (Fig. 1A View Figure 1 ). Antenna slightly clavate with a conspicuous micropilosity area on last clavomere (Fig. 1E View Figure 1 ). Pronotum elongated, collar margined and more than half as long as mesoscutum (Fig. 1B View Figure 1 ). Anterior half of collar with ten transverse carinae (Fig. 1B View Figure 1 ). Mesoscutum coarsely cross striated (Fig. 1B View Figure 1 ). Mesoscutellum delimited anterolaterally from mesoscutum and axillae by broad foveate-septated scutoscutellar sulcus separating axillae (Fig. 1B View Figure 1 ). Frenum coarsely reticulated, extending on about half length of mesoscutellum (Fig. 1B View Figure 1 ). Propodeum relatively long, area between spiracles coarsely cross striated in proximal part, striate in distal part of propodeum medially turning backwards to propodeal foramen (Fig. 1G View Figure 1 ). Mesosoma dorsally with scarce long black setae, three long white setae laterally on pronotal collar, one on mesoscutal lateral lobe and three smaller ones on axilla along scutoscutellar suture (Fig. 1B View Figure 1 ). Hind coxa bare dorsally. Fore wing with marginal vein about as long as postmarginal vein, stigma enlarged, ovoid, basal vein present (Fig. 1F View Figure 1 ). Petiole elongated, about 0.8 × as long as propodeum (Fig. 1G View Figure 1 ). Metasoma, not including petiole, shorter than mesosoma, smooth or with traces of coriaceous sculpture laterally (Fig. 1A View Figure 1 ), Gt1-2 medially slightly emarginated. Ovipositor upturned and slightly longer than the entire metasoma (Fig. 1A View Figure 1 ).
In the key of Bouček (1988) Striastigmus goes to couplet 14 (page 120) but differs from Paramegastigmus Girault by having oval head with concentric striated sculpture on most of face, cross striated pronotum, mesonotum and propodeum, coarsely reticulated frenum, and bicolored petiole, mesoscutellum, metanotum and legs, as well as the bicolored setae on head and mesosoma.
Generic description.
Female. Same as for description of Striastigmus bicoloratus Rasplus, Böhmová & Janšta, sp. nov.
Host association.
Unknown. Swept from vegetation in rain forest.
Distribution.
Australia: Queensland.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.