Prionaspidion nanus Lepeco & Melo, 2022
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publication ID |
https://dx.doi.org/10.3897/jhr.94.85613 |
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publication LSID |
lsid:zoobank.org:pub:0EA310AF-8084-4448-AEDA-4CD39772A98B |
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persistent identifier |
https://treatment.plazi.org/id/29966B39-4973-40C8-9471-66D79BB77EBE |
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taxon LSID |
lsid:zoobank.org:act:29966B39-4973-40C8-9471-66D79BB77EBE |
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treatment provided by |
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scientific name |
Prionaspidion nanus Lepeco & Melo |
| status |
sp. nov. |
† Prionaspidion nanus Lepeco & Melo sp. nov.
Figs 2 View Figure 2 , 3 View Figure 3 , 4 View Figure 4
Type material.
Holotype male in amber piece DZUP Bur-2265 (Fig. 2 View Figure 2 ). The specimen is almost fully articulated, except for part of the right metatarsus, and a detached metasomal sclerite, near the metasoma. Syninclusions: an unidentified mite and a large number of debris and plant trichomes. Paratype specimen (apparently a female, judging by the simple tarsal claws) in amber piece DZUP Bur-1127 (Figs 3 View Figure 3 , 4 View Figure 4 ). The specimen is relatively well preserved, fully articulated, with the exception of the distal portion of the metasoma and the hind wings. No sting or genitalia are present on the piece. A bubble hinders the visualization of the propodeum. Syninclusions: five unidentified mites and debris.
Diagnosis.
The species can be separated from † P. brevidens sp. nov. by the smaller body size (forewing length between 1.3 and 1.4 mm in the examined specimens); carina on the dorsal rim of antennal socket not reaching the inner orbit; poorly defined and irregularly sized denticles on the apical margin of clypeus; and the relatively robust profemur, about 2.5 times as long as maximum width.
Description.
Holotype male. Measurements. Approximate body length: 2.3 mm; maximum head length: 0.7 mm; maximum head width: 0.5 mm; medial clypeus length: 0.2 mm; approximate forewing length: 1.4 mm. Color. Poorly preserved, body apparently dark brown. Legs yellowish. Wings hyaline, veins light brownish. Pubescence. Head mostly glabrous, except for short erect setae on mandible and clypeus. Mesosoma and most of metasoma apparently glabrous. Legs mostly with short setae; apex of tarsomeres with two to five short bristles. Apex of T4 and T5 with sparse long setae. Forewing with homogeneous coverage of tiny setae; anterior margin with dense tiny setae, setae as long as half width of vein C+Sc+R. Sculpturing. Smooth, where preserved. Metapostnotum apparently occupying most of dorsal surface of propodeum medially, without basal rugae. Structure. Maxillary palp with at least three palpomeres. Labial palpomeres not distinguishable. Mandible tridentate, upper tooth larger than lower teeth. Clypeal disc about as wide as long, slightly smaller than compound eye; apical margin with irregular, weak, blunt denticles. Frons without strong carina adjacent to inner orbit; dorsal rim of antennal socket with low carina directed towards frons. Eyes separated medially by about eye length; lower orbits slightly converging. Mid ocellus separated from lateral ocelli by about 1.5 times its diameter. Lateral ocellus separated from inner orbit of eye by about 3 times ocellar triangle length. Vertex extending behind lateral ocelli for about 1.5 times the length of ocellar triangle. Hypostomal bridge 3.5 times as long as basal mandibular width. Scape about 4 times as long as maximum width; pedicel about 1.3 times as long as F1. Profemur about 2.5 times as long as maximum width. Basitarsomere of fore leg as long as 0.5 times protibial length. Tibial spur formula 1-1-1. Basitarsomere of hind leg about as long as 0.7 times metatibial length. Tarsal claws bifid.
Paratype female. As for the male, except: Measurements. Approximate body length: 2.0 mm; maximum head length: 0.6 mm; maximum head width: 0.5 mm; medial clypeus length: 0.1 mm; approximate forewing length: 1.3 mm. Color. Poorly preserved, body apparently brown. Pubescence. Head, mesosoma and most of metasoma apparently glabrous. Apex of T4 and T5 with sparse setae. Sculpturing. Head apparently with tiny scattered punctures. Structure. Head slightly shorter than that of male; tibial spur formula apparently 1-0-1; tarsal claws simple.
Etymology.
The name is derived from the Latin nanus, meaning “dwarf”, in allusion to the relatively small size of the species. The name is an adjective.
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.