Lachesilla szirakii, García, Alfonso N., 2009

García, Alfonso N., 2009, New species and records of Psocoptera (Insecta) from Argentina, Zootaxa 2219, pp. 1-17 : 11-12

publication ID	https://doi.org/ 10.5281/zenodo.190002
DOI	https://doi.org/10.5281/zenodo.6225132
persistent identifier	https://treatment.plazi.org/id/B035D048-7A5C-FF9F-4BDB-FB58FCA0FEA3
treatment provided by	Plazi
scientific name	Lachesilla szirakii
status	sp. nov.

Treatment

Lachesilla szirakii View in CoL n. sp.

( Figs. 26–29 View FIGURES 26 – 29 )

Diagnosis. Belonging is species group szirakii (defined below). Subgenital plate broad ( Fig. 27 View FIGURES 26 – 29 ) with sides converging to a pointed apex. Gonapophyses elongate ( Fig. 28 View FIGURES 26 – 29 ), with sides almost parallel, distally rounded and slightly projected posteriorly on outer edge.

Color. Body pale brown. Compound eyes black, ocelli hyaline, with dark brown centripetal crescents. Antennae and maxillary palps brown, palpomeres III and IV more

pigmented than basal ones. Legs pale brown. Wings hyaline, veins brown. R1 ochre distally. Abdomen creamy white, with ochre, transverse, subcuticular dorsal bands.

Morphology. Forewing pterostigma wider posteriorly, Rs-M veins diverging from a point, areola postica wide, rounded apically. Hindwing with Rs-M fused for a distance ( Fig. 26 View FIGURES 26 – 29 ). Ninth sternum ( Fig. 28 View FIGURES 26 – 29 ) unpigmented, spermapore on posterior third, with a slender pigmented rim. Paraprocts ( Fig. 29 View FIGURES 26 – 29 ) elliptic, with setae as illustrated, sensory fields elliptic, with 9-11 trichobothria issuing from basal rosettes, except a marginal one, without basal rosette. Epiproct trapeziform ( Fig. 29 View FIGURES 26 – 29 ), with field of setae on distal third.

Measurements. FW: 2093, HW: 1636, F: 345, T: 682, t1: 195, t2: 69, ctt1: 15, Mx4: 81, f1: 177, f2: 135, f3: 116, f4: 100, IO: 202, D: 143, d: 95, IO/D: 1.41, PO: 0.66.

Material studied. Holotype female. ARGENTINA, Jujuy Province, Department of Ledesma, Calilegua National Park, Tataupa trail, subtropical deciduous forest, 23°44.6’S: 64°51.2’W, 766m., 28.X.2006, G. Sziráki ( HNHM).

Etymology. This species is dedicated to György Sziráki, of the Hungarian Natural History Museum, for making available for study an important collection of Psocoptera from Argentina, and in recognition to his studies on Neuroptera .

Remarks. L. szirakii is not assignable to any of the species groups presently recognized in Lachesilla , it shows a combination of characters (subgenital plate pointed, gonapophyses projected posteriorly) not observed in any of the species groups, hence it constitutes its own, diagnosed as follows:

Species group szirakii . Subgenital plate conical, apex pointed. Gonapophyses long, sclerotized along outer edge, distally rounded, with a small posterior projection.