Prolachesilla casasolaoides, Arango, Stephania Sandoval, Obando, Ranulfo González & Aldrete, Alfonso Neri García, 2017

Arango, Stephania Sandoval, Obando, Ranulfo González & Aldrete, Alfonso Neri García, 2017, New species of Prolachesilla Mockford & Sullivan (Psocodea: ‘ Psocoptera’: Lachesillidae: Graphocaeciliini) from Bolivia and Mexico, Zootaxa 4244 (3), pp. 440-450 : 446

Prolachesilla casasolaoides n. sp. Male

( Figs 16–20 )

Diagnosis. Differing from P. casasolai n. sp., in having the phallosome with one body of endophallic denticles and in having the external parameres shorter, broader, with spiny apices shorter, curved outwards ( Fig. 19 ). Arms of the aedeagal arch shorter than in P. casasolai ( Fig. 19 ); posterior border of the hypandrium similarly biconcave, but the postero-lateral corners are distinctly rounded ( Fig. 20 ). Clunial projection over the area of the epiproct wider and deeper than in P. casasolai ; projections over the area of the paraprocts larger than in P. casasolai ( Fig. 18 ). Differing from all the other species of Prolachesilla in the arrangement of the endophallic denticles and in the shape of the posterior border of the hypandrium.

Color. Body tawny brown, compound eyes black, legs pale brown, forewings pale yellow, hindwings hyaline, almost transparent ( Fig. 16 ). Tergal lobes of meso- and metathorax pale brown, abdomen creamy with pale brown subcuticular, transverse bands.

Morphology. As in diagnosis plus the following: Head vertex almost straight, slightly below the level of the upper borders of the compound eyes, these large, prominent ( Fig. 17 ). Forewing L/W: 2.53 ( Fig. 16 ). Forewing pterostigma elongate, wider distally, lp/wp: 3.09, without setae in the membrane. Areola postica triangular ( Fig. 16 ). Hindwing L/W: 2.89 ( Fig. 16 ). Hypandrium ( Fig. 20 ) and phallosome ( Fig. 19 ) as in diagnosis ( Fig. 19 ). Paraprocts ( Fig. 18 ), oval; sensory fields with 15 trichobothria on basal rosettes. Epiproct ( Fig. 18 ), almost trapeziform, slightly rounded posteriorly, setae as illustrated.

Measurements (in microns). FW: 2625, HW: 2025, F: 625, T: 1025, t1: 400, t2: 125, ctt1: 22, Mx 4: 160, f1: 560, f2: 440, f3: 340, f4: 270, f5: 170, f6: 150, f7: 140, f8: 140, f9: 125, f10: 120, f11: 120, IO: 360, D: 180, d: 130, IO/d: 2.77, PO: 0.72.

Specimens studied. Holotype male. MEXICO . Oaxaca. Sierra Juárez . Santa Catarina Lachatao, “ Las Vigas ”, 17°11’17”N: 96°27’13.5”W, 2790 m., 27.VIII.2013, beating shrubs with dead, hanging leaves, J. A. Casasola González.

Etymology. The specific name refers to the similarity with P. casasolai n. sp., both species are sympatric, found in the same biotope, date and locality.

Figures

FIGURES 16 – 20. Prolachesilla casasolaoides n. sp. Male. 16. Fore- and hind- wings. 17. Front view of head. 18. Clunium, epiproct and left paraproct. 19. Phallosome. 20. Hypandrium. Scales in mm.