Neurostigma mockfordi, 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 : 85-88

Neurostigma mockfordi sp. nov.

( Figs 7–12 )

Type material. Hඈඅඈඍඒඉൾ:J, COLOMBIA: Valle del Cauca, Santiago de Cali, Kilómetro 18, vía a Zingara, 3°30′38.3″N, 76°37′13.8″W, 1990 m, 17.vi.2010, R. González leg. (MUSENUV, slide no. 29872). Pൺඋൺ- ඍඒඉൾ: COLOMBIA: 1 J, Boyacá, Flora and Fauna Sanctuary Iguaqué, El Níspero, 5°38′N, 73°31′W, 2730 m, 28.x.–14.xi.2001, Malaise trap, P. Reina leg. ( IAVH).

Description. Measurements (male holotype, in μm). FW: 4275, HW: 3125, F: 950, T: 1625, t1: 620, t2: 200, ctt1: 20, f1: 630, f2: 460, f3: 370, Mx4: 280, IO: 560, D: 240, d: 210, IO/d: 2.67, PO: 0.88, H/MxW: 1.41, H/D: 4.37, IO/ MxW: 0.81, Mx4/Mx2: 1.73, FW/W: 2.47, lp/wp: 2.83, al/ ah: 1.76, HW/w: 3.10.

Color. Body dark brown, with pale spots. Head ( Fig. 9 ) with small pale brown spot between lower inner margin of compound eyes and antennal socket; vertex, frons, postclypeus, genae and postgenae creamy; compound eyes black; ocelli hyaline, ocellar triangle creamy; anteclypeus light brown; labrum pale brown; labral sclerites brown. Antennae pale brown. Maxillary palps light brown to creamy. Tergal lobes of meso- and metathorax dark brown; thoracic pleura brown. Legs: coxae and trochanters brown; femora brown, darker basally, with oval blackish spots; tibiae creamy, with contours blackish; tarsomeres 1 creamy; tarsomeres 2 pale brown. Forewing membrane brown proximally ( Fig. 7 ), hyaline distally; crossveins of pterostigma dark brown; veins brown, Rs, M and areola postica dark brown; nodus and nodulus blackish. Hindwing membrane pale brown proximally, hyaline distally, veins brown ( Fig. 8 ). Abdomen brown, tergum dark brown. Clunium dark brown. Hypandrium brown, posterior edge darker. Phallosome dark brown, endophallus creamy. Epiproct and paraprocts dark brown.

Morphology. Head with abundant macrosetae, mainly on vertex ( Fig. 9 ); compound eyes small, widely separated; vertex convex, bilobed, clearly above upper border of compound eyes. Outer cusp of lacinial tips broad, with eight denticles. Labrum with five distal sensilla: central placoid one, flanked by pair of trichoid–placoid sensilla. Forewings ( Fig. 7 ): pterostigma triangular, long, wider medially, with 4–5 crossveins; M with three branches, strongly concave distal to transverse vein r–m; areola postica high, slanted posteriorly, rounded apically, separated from CuA 2 by about 0.28× its own length; R 2+3 strongly sinuous, R

4+5

almost five times the length of Rs section proximal to transverse r–m. Hindwings elongate ( Fig. 8 ): M unbranched; Rs+M much shorter than Rs section proximal to transverse rs–m. Legs: hind coxae with rasp smaller than tympanum; trochanters with two long setae dorsally; fore and mid-tarsi without ctenidobotria; hind tarsi with ctenidobotria. Hypandrium membranous ( Fig. 11 ), with dense field of long setae, posterior border rounded, postero-lateral borders more sclerotized. Phallosome ( Fig. 12 ) open basally; side struts short, wide basally, curved outwards; aedeagal arch robust, posterior process rounded apically; external parameres absent; endophallus membranous, lacking sclerites. Paraprocts ( Fig. 10 ) elongate, posterior border rounded, with setae, sensory fields large, with 26–28 trichobothria on basal rosettes. Epiproct broad basally, posterior margin truncate, setal field as illustrated in Fig. 10 . Female unknown.

Diagnosis. Neurostigma mockfordi sp. nov. is similar to N. valderramae sp. nov. in the forewings and radula. It differs from the latter in the following characters: posterior process of aedeagus broad, stout, and distally rounded; pterostigma with five crossveins; areola postica slanted posteriorly, with apex rounded.

Etymology. This species is dedicated to Dr. Edward L. Mockford, from the Illinois State University, an undisputed leader in psocidological studies worldwide.

Distribution. Colombia (Boyacá and Valle del Cauca).

Figures

Figs 7–12. Neurostigma mockfordi sp. nov., male. 7 – forewing; 8 – hindwing; 9 – head, frontal view; 10 – left paraproct and epiproct; 11 – hypandrium; 12 – phallosome. Values for scale bars in mm.