Neurostigma lienhardi, González-Obando & Carrejo-Gironza & Mendivil-Nieto & Aldrete, 2021

González-Obando, Ranulfo, Carrejo-Gironza, Nancy, Mendivil-Nieto, Julián & Aldrete, Alfonso Neri García, 2021, Neurostigma (Psocodea: Psocomorpha: Epipsocidae) from Colombia: new species and an identification key, Acta Entomologica Musei Nationalis Pragae 61 (1), pp. 83-98 : 85

Neurostigma lienhardi sp. nov.

( Figs 1–6 )

Type material. Hඈඅඈඍඒඉൾ:J, COLOMBIA: Valle del Cauca, Santiago de Cali, La Buitrera, 3°32′14.1″N, 76°45′19.0″W, 1140 m, 23.vii.2011, R. González leg. (MUSENUV, slide no. 29870). Pൺඋൺඍඒඉൾ: 1 J, same data as holotype (MUSENUV, slide no. 29871).

Description. Measurements (male holotype, in μm). FW: 3825, HW: 2725, F: 850, T: 1400, t1: 520, t2: 180, ctt1: 20, f1: 500, f2: 350, Mx4: 210, IO: 520, D: 290, d: 230, IO/d: 2.26, PO: 0.79, H/MxW: 1.41, H/D: 3.56, IO/MxW: 0.75, Mx4/Mx2: 1.55, FW/W: 2.38, lp/wp: 3.24, al/ah: 2.35, HW/w: 2.95.

Color. Body creamy, with brown spots. Head ( Fig. 3 ): vertex, frons and postclypeus creamy; genae creamy, light brown close to lower edge of compound eyes; postgenae creamy; compound eyes black, ocelli hyaline, with pale brown centripetal crescents; anteclypeus and labrum creamy; labral sclerites pale brown. Antennae pale brown. Maxillary palps creamy to pale brown. Tergal lobes of mesothorax creamy, tergal lobes of metathorax brown; thoracic pleura creamy. Legs: coxae and trochanters creamy, apex blackish; femora creamy, with oval blackish spots, mainly on anterior side; tibiae creamy; tarsomeres 1 creamy; tarsomeres 2 light brown. Forewing membrane hyaline, light brown proximally ( Fig. 1 ); crossveins of pterostigma dark brown to black; Rs, M and areola postica dark brown, other veins creamy; nodulus blackish. Hindwing membrane hyaline, with light brown spot near base of CuP; veins brown ( Fig. 2 ). Abdomen creamy, tergum with irregular blackish spots. Clunium pale brown. Hypandrium light brown. Phallosome pale brown, radular sclerites light brown. Epiproct and paraprocts creamy.

Morphology. Head with abundant macrosetae, mainly on vertex ( Fig. 3 ). Vertex convex, bilobed, clearly above upper border of compound eyes. Outer cusp of lacinial tips broad, with 6–7 denticles. Labrum with five distal sensilla: central placoid one, flanked by pair of trichoid–placoid sensilla. Forewings ( Fig. 1 ): pterostigma long, much wider posteriorly, with five crossveins; Rs, proximal to transverse vein r–m, strongly concave; R 2+3 sinuous, R 4+5 less than three times the length of Rs section distal to r–m; M with three branches, M 3 forked or simple. Areola postica high, slanted posteriorly, apex rounded, separated from CuA 2 by about 0.25× its own length. Hindwings elongate ( Fig. 2 ): M simple, unbranched; R 2+3 and R 4+5 longer than Rs; Cu angled in middle; Rs and M fused at a distance; Rs+M shorter than Rs section proximal. Legs: fore coxae with rasp as long as tympanum; trochanters with two long setae dorsally; fore tarsi without ctenidobotria; mid- and hind tarsi with ctenidobotria.Abdominal tergum with tubercular lobes. Hypandrium membranous ( Fig. 5 ), with dense field of long setae, posterior margin rounded. Phallosome ( Fig. 6 ) open basally; side struts curved outwards; aedeagal arch robust, posterior process robust, truncated apically, with parallel sides; external parameres absent; radula with two groups of small sclerotized teeth separated by reticulated area. Paraprocts ( Fig. 4 ) broad basally, short, posterior border rounded, with setae and macrosetae distally, sensory fields large, with 37–39 trichobothria on basal rosettes. Epiproct ( Fig. 4 ) wide anteriorly, posterior border broadly rounded, with microsetae and setae; one seta mesally. Female unknown.

Diagnosis. Neurostigma lienhardi sp. nov. resembles N. thorntoni sp. nov. in head, wing and radular sclerites. It differs from the latter in the following characters: posterior process of aedeagus broad, with parallel sides and distally truncate; two groups of sclerotized teeth in radula separated by a reticulate area ( Fig. 6 ); hindwing less widened basally, with Rs proximal to M interception basally inclined towards wing base ( Fig. 2 ).

Etymology. This species is dedicated to Dr. Charles Lienhard, from the Museum of Natural History, Genéve, Switzerland, in recognition of his vast contributions to psocidology.

Distribution. Colombia (Valle del Cauca).

Figures

Figs 1–6. Neurostigma lienhardi sp. nov., male. 1 – forewing; 2 – hindwing; 3 – head, frontal view; 4 – epiproct and right paraproct; 5 – hypandrium; 6 – phallosome. Values for scale bars in mm.