Lachesilla batesi, García Aldrete, 2017

García Aldrete, Alfonso N., 2017, New species of Lachesilla (Psocodea: Psocomorpha: Lachesillidae), in species group corona, from southern Mexico and Central America, Zootaxa 4347 (2), pp. 201-227 : 202

Lachesilla batesi n. sp. Male

( Figs 1–3 )

Diagnosis. Hypandrium obtusely concave posteriorly, posterior processes broad, distally rounded, bearing one seta near the border. Phallosome apodemes independent, each arm long, slender, distally curved outwards, bearing apically a brush of short setae on the inner border.

Description. Color (48 years in 80% ethanol). Body tawny brown, compound eyes black, ocelli hyaline, without pigmented centripetal crescents. Maxillary palpomeres 1–3 brown, 4- dark brown. Antennae pale brown. Wings hyaline, veins pale brown.

Abdomen whitish, with faded, brown subcuticular rings, less pigmented ventrally.

Morphology. As in diagnosis, plus the following: Forewing pterostigma elongate, wider distally, Rs-M fused for a distance, areola postica wide, broadly triangular ( Fig. 1 ). Hypandrium broad, with setae as illustrated ( Fig. 2 ). Paraprocts ( Fig. 3 ) broad, with a macroseta near each sensory field, and a row of setae along posterior border, mesal prong curved, narrowing distally, truncate; a sclerotized, curved band anterior to each sensory field, these sensory fields with 11 trichobothria. Epiproct ( Fig. 3 ) wide, anteriorly straight and posteriorly bilobed, each lobe bearing distally a field of setae and a pointed, sclerotized apophysis directed inward.

Measurements. FW: 2305, HW: 1747, F: 373, T: 752, t1: 217, t2: 88, ctt1: 17, Mx4: 85, f1: 244, f2: 198, f3: 175, f4: 159, IO: 318, D: 200, d: 120, IO/d: 2.64, PO: 0.60.

Specimen studied. Holotype male. GUATEMALA. 41.6 km N El Rancho, road to Cobán. 29.viii.1968. Beating branches with dried leaves of broad leaved trees. E. L. Mockford & A. N. García Aldrete ( ISU).

Etymology. This species honors the memory of Henry Walter Bates, author of the Insecta. Coleoptera . Volume I, Part 1 (1881–1884), Insecta. Coleoptera . Pectinicornia and Lamellicornia. Volume II, Part 2 (1886–1890), and co-author of the Insecta. Coleoptera . Longicornia and Bruchides. Volume V (1879–1886), of the Biologia Centrali- Americana.

Remarks. This species has the phallosome apodemes independent, as well as L. dispariforceps Mockford (1986) , L. dividiforceps García Aldrete (1974 b) , L. hermosa García Aldrete (1982) , L. unsijensis García Aldrete & Casasola (2012) , L. lacustrina García Aldrete (2015 a) , L. picticeps Mockford (1986) , L. sharpi n. sp., described below, and L. silvatica García Aldrete (1988) , but differs from all of them by the peculiar shape of the posterior processes of the hypandrium, and by having an apical brush on the inner border of each phallosome apodeme.

Figures

FIGURES 1 – 3. Lachesilla batesi n. sp. Male. 1. Fore- and hind- wings. 2. Hypandrium and phallosome. 3. Left paraproct and epiproct. Scales in mm.