Trassedia pilosus Masner and Miko 2018, sp. nov.
Creators: name: Mikó, István
name: Trietsch, Carolyn
name: Kamp, Thomas van de
name: Masner, Lubomír
name: Ulmer, Jonah M.
name: Yoder, Matthew Jon
name: Zuber, Marcus
name: Sandall, Emily L.
name: Baumbach, Tilo
name: Deans, Andrew R.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megaspilidae
Trassedia
Trassedia pilosus

description: Trassedia pilosus Masner and Mikó sp. nov.   
(Zoobank LSID: urn:lsid:zoobank.org:act: ACE29BF1-01F5-42D1- 81B7-8BF9ACA1005C)  
 Diagnosis   
 Trassedia pilosus shares the presence of elongate interommatidial setae with T. nigrorufus (setae 2× as long as the diameter of the facets) and can be separated from that species by the preoccipital sulcus (wider anteriorly than posteriorly in T. pilosus (pof: Fig. 14A) and not in T. nigrorufus (pof: Fig. 6C) and the body coloration (head and ventral mesosoma concolorous with the dorsal mesosoma in T. pilosus; head and ventral mesosoma dark brown, dorsal mesosoma orange in T. nigrorufus).   
 Description   
 Body length: 1.25–1.35 mm. Color hue pattern male: cranium, mesosoma, metasoma ochre, legs except mesocoxa and metacoxa, antenna yellow, mesocoxae and metacoxae white. Color intensity pattern male: scape lighter than flagellum, cranium and mesosoma darker than metasoma. Structure of scutes on head and mesosoma: Scute surface on head and mesosoma flat, scutes indistinct. Head: HW:HH = 1.1. HW/IOS Male: 1.8. Maximum eye diameter versus minimum eye diameter: 1.2. Interommatidial seta length: Interommatidial seta more than two times as long as facet diameter. Occipital carina medially: continuous. Seta length on dorsal region of cranium versus diameter of median ocellus: longer. Setal pit on vertex size: smaller than diameter of scutes. Scutes on vertex count: absent. Preoccipital furrow anterior extension: adjacent anteriorly to the posterior margin of the median ocellus. Preoccipital furrow anterior region versus posterior region sculpture: posterior region crenulate, anterior region smooth or finely reticulate. Preoccipital furrow anterior region width versus posterior region width: wider anteriorly than posteriorly. Male OOL: POL: LOL: 0.8–0.9:0.5–0.8:1.0. Preocellar pit count: absent. Carina delimiting antennal scrobe count: absent. Transverse striation on upper face count: absent. Anterior ocellar fovea shape: fovea extended ventrally into facial sulcus, reaching dorsal margin of antennal scrobe. Supraclypeal depression count: present. Ocular impression sculpture: scalloped (foveae composing ocellar impression adjacent, sometimes not separated from each other). Antenna: Length of setae on male flagellomere versus male flagellomere width: setae as long as width of flagellomeres. Male scape length versus pedicel length: 2.8. Male F1 length versus pedicel length: 1.5. Male scape length versus combined length of F1+F2: shorter. Male F6 length versus combined length of F7+F8: Shorter than length of flagellomere 7 + 8. Number of flagellomeres with male-specific ventral sensilla: F6-9. Mesosoma: Mesosoma shape: not compressed laterally, as wide as high or wider than high. Pronope count: present. Anterior slope of mesonotum shape: Anterior slope of mesonotum at obtuse angle to dorsal surface of mesonotum in lateral view. Antero-admedian line count: present. Notaulus count: present. Notaulus anterior origin versus anterolateral angle of mesoscutum (ball-and-socket articulation between pronotum and mesoscutum): notaulus arises at anterolateral angle of the mesoscutum. Posterior end of notaulus versus posterior end of antero-admedian line location: antero-admedian line extends more posteriorly than notaulus. Scutes on posterior region of mesoscutum and dorsal region of mesoscutellum count: present. Epicnemial carina count: complete. Sternaulus count: absent. Anterior metapleural carina count: absent. Carina limiting posteriorly antecosta count: present. Lateral propodeal carina count: present. Wings: Stigmal vein length versus pterostigma marginal length: stigmal vein longer than the pterostigma marginal length. Metasoma: Waterston’s evaporatorium shape medially male: not paired, single median evaporatorium present.   
Male genitalia: Anterior margin shape of male S9: straight. Male S9 distal setal line/setal patch count: distal setae composing setiferous patch(es). Distomedian, hairless area (interrupting transverse row of setae or patch) on male S9 count: absent (distal setiferous patch/line continuous medially). Distal margin of male S9 shape: concave. Proximolateral corner of male S9 shape: blunt. Proximolateral projection of the cupula shape: blunt. Gonostyle/volsella complex length: longer than wide. Gonostyle/volsella complex proximodorsal margin shape: straight or slightly concave. Distal sensilla on gonossiculus versus proximal margin of gonossiculus location: closer to distal margin than to proximal margin of gonossiculus. Distal margin of harpe in lateral view: shape: acute. Lateral setae of harpe count: present. Lateral margin of harpe shape: widest point of harpe is at its articulation site with gonostyle-volsella complex.  
 Etymology   
The species epithet refers to the long interommatidial setae of the new species.
description: Published as part of Mikó, István, Trietsch, Carolyn, Kamp, Thomas van de, Masner, Lubomír, Ulmer, Jonah M., Yoder, Matthew Jon, Zuber, Marcus, Sandall, Emily L., Baumbach, Tilo & Deans, Andrew R., 2018, Revision of Trassedia (Hymenoptera: Ceraphronidae), an Evolutionary Relict With an Unusual Distribution, pp. 1-29 in Insect Systematics and Diversity (AIFB) (AIFB) 2 (6) on page 23, DOI: 10.1093/isd/ixy015, http://zenodo.org/record/7168382