Glaphyrosoma magnaproctalis, Cadena-Castañeda, Oscar J. & Monzón-Sierra, José, 2017

Cadena-Castañeda, Oscar J. & Monzón-Sierra, José, 2017, Studies in Guatemalan Ensifera: New Glaphyrosoma species (Orthoptera: Anostostomatidae) and additional data for other described species, Zootaxa 4242 (3), pp. 548-564 : 551

Glaphyrosoma magnaproctalis n. sp.

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:493161 ( Figs. 1–14 )

Holotype. Ƌ labeled “ GUATEMALA, Guatemala, Zona 2, “ El Zapote ”, 17-IV-2001, Col. Luis Macías S. ” ( UVGC).

Paratypes. 1 Ƌ labeled “ GUATEMALA, Guatemala, JACARANDAS DE CAYALA (1550 MSNM), 28-III- 91. J. Arellano ” ( CAUD) . 1 ♀ labeled “ GUATEMALA, Guatemala, Puerta Parada , 21 VI 1997, JC Schuster ” ( UVGC) .

Description. Male (holotype). Body large for this genus, shining, and relatively uniformly colored ( Figs. 1–2 ); dorsal surface of head, thorax, tergites and femora brown, lateral and ventral areas of same structures yellowish. Head ovoid; rostrum wide with a pair of rounded and oblique margins between antennal bases; 1.5 times as wide as antennal scape; ocelli rounded, of similar size and equidistant ( Fig. 3 ). Thorax: thoracic and abdominal tergites similar; pronotum tubular, without hummers sinus ( Fig. 4 ); lateral lobules quadrangular and with anterior and posterior margins straight; meso- and metanotum with similar shape as pronotum but shorter and with later inferior margins rounded ( Fig. 5 ). Legs: anterior and medial pairs slender, third with femora well developed for jumping; anterior tibiae with tympani well developed in both sides, oval and middle sized; tibial armament — d2a, vi3, ve3, v2 a / 2da, vi2, ve2, vsa2, va2 / d9e, d 8i, d2sa 6a. Abdomen: tubular; tergites with posterior margins rounded; eighth tergite with posteromedial margin arched and moderately pronounced; ninth tergite with posteromedial margin notoriously divided in “V” shape conforming two lateral rounded lobules; tenth tergite narrow and mostly covered by ninth tergite ( Fig. 6 ), additionally armed by a pair of sub triangular prominent hooks that stand out through the middle of the notch of ninth tergite; epiproctum rounded and medium sized; paraproctum thick and prominent with base tubular and short, the rest wide, rectangular, taller than wide and armed with spine in dorsal margin; cerci thin and long, almost twice as long as paraproctum ( Figs. 7–8 ); subgenital plate quadrangular, slightly thinning from base to apex, latero- apical styli cylindrical and with apex rounded, notch shallow and “U” shaped ( Fig. 9 ).

Female: Similar to males, coloration slightly darker than in males (maybe because of the state of preservation of the only examined female) ( Figs. 10–12 ), epiproctum ovoid, paraproctum without processes; subgenital plate triangular ( Fig. 13 ), ovipositor as long as two thirds the length of posterior femora, slender, slightly curved, with apex sharp and with smooth dorsal and ventral edges ( Fig. 14 ).

Measurements (in mm.). Holotype: LB: 21. Pr: 7. HF: 19.5. HT: 20. Paratypes: Male / Female: LB: 20/30. Pr: 6.5/7. HF: 18.5/19.5. HT: 19.5/20. Ov: 14.

Etymology. Refers to its well-developed male paraproctum.

Comparison. This new species is very similar in color to G. bulbosum and G. anderi and presenting well developed paraproctum. It can be differentiated from these two species by the the ninth tergite which is divided in the posterior-medial margin. G. anderi has the ninth tergite pronounced and not divided, while in G. bulbosum its slightly divided. Paraproctum of this new species is much more prominent and rectangular than in the other two species which have them ovoid. Ovipositor similar to that of G. bulbosum in structure but longer and sharper, in G. anderi it has a depression at the apex, which is absent in the new species.

Figures

FIGURES 1 – 9. Glaphyrosoma magnaproctalis n. sp. (Male—Holotype). 1 – 2. Habitus in dorsal and lateral view. 3. Frons. 4 – 5. Head and pronotum in lateral and dorsal view. 6 – 9. Terminalia in dorsal, lateral, axial and ventral view.

FIGURES 10 – 14. Glaphyrosoma magnaproctalis n. sp. (Female—Paratype). 10 – 11. Habitus in lateral and dorsal view. 12. Frons. 13. Subgenital plate. 14. Ovipositor.