Myopsocus chocoensis, González-Obando & Calderón-Martínez & Carrejo-Gironza, 2023

González-Obando, Ranulfo, Calderón-Martínez, Nadia R. & Carrejo-Gironza, Nancy S., 2023, New species of Myopsocidae (Insecta: Psocodea: “ Psocoptera ”) from Colombia, Zootaxa 5377 (1), pp. 1-61 : 36

Myopsocus chocoensis n. sp.

( Figs 103–108 )

Diagnosis. Belonging to the assemblage of species that does not present the forewing with the apical margin of some of its cells scalloped, but unlike these it presents hypandrium with two short rounded apical processes, these with teeth on the outer margin, phallosome ovoid with side strut broadly united basally; external parameres clearly differentiated, elongate and acuminate and well-developed aedeagal arch ( Fig. 108 ).

Male. Color. Head ( Fig. 105 ) brown, with scattered light brown spots. Compound eyes black, ocelli hyaline, with ochre centripetal crescents. Antenna pale brown, cream apically; maxillary palps brown. Forewing ( Fig. 103 ) with brown spots and hyaline areas, pterostigma brown filled with small brown spots that extends outside the margin, while retaining its shape, alar margin dotted, veins pale brown, some dotted. Hindwing ( Fig. 104 ) smoked, with veins pale brown and dotted costal margin. Legs: coxae and trochanter dark brown, femora dark brown proximally, light brown distally, with subapical brown spot, tibiae and tarsi pale brown, t2–t3 darker. Hypandrium, phallosome, paraprocts and epiproct pale brown.

Morphology. As in diagnosis, plus the following: Head (Fig. x): H/MxW: 1.27; compound eyes large, H/D: 1.89; IO/MxW: 0.58. Vertex slightly emarginated, slightly below upper margin of compound eyes. Outer cusp of lacinial tips broad, with five denticles; Mx4/Mx2: 1.30. Forewings ( Fig. 103 ): L/W: 2.60. Pterostigma: lp/wp: 1.91, areola postica wider than tall, apically angled: al/ah: 1.47. Hindwings ( Fig. 104 ): l/w: 2.77. Hypandrium trianguliform ( Fig. 107 ), anterior border concave; apically with two short rounded processes, these with teeth on the outer margin, with several macrosetae. Phallosome ovoid side strut broadly united basally; external parameres clearly differentiated, elongate and acuminate; well-developed aedeagal arch ( Fig. 108 ). Paraprocts with short process directed inward ( Fig. 106 ), with a field of setae and macrosetae on distal area; sensory fields with 22 trichobothria on basal rosettes. Epiproct ( Fig. 106 ) semioval, anterior margin concave, anterolateral angles with processes directed toward the clunium; with setae and macrosetae as illustrated.

Measurements. FW: 2287.5, HW: 1750, f1: 475, f2: 335, f3: 285, f4: 267.5, f5: 242.5, f6: 200, f7: 157.5, f8: 145, f9: 142.5, f10: 132.5, f11: 70, Mx4: 136, IO: 270, d: 243, D: 313, IO/d: 1.11, PO: 0.78.

Material studied. Holotype male. COLOMBIA. Chocó. National Natural Park Los Katios , 7°51’51.6.0”N: 77°9’54.1”W. 40m. 26–27.ii.2017. MUSENUV slide code: 31331 . N. Carrejo, R. González. J. Mendivil. Led light trap in forest canopy.

Etymology. This species is dedicated to the Colombian department of Choco, where the holotype was found.

Figures

FIGURES 103–108. Myopsocus chocoensis n. sp. Male. 103. Forewing. 104. Hindwing. 105. Head (frontal view). 106. Paraproct and epiproct. 107. Hypandrium. 108. Phallosome. Scales in mm.