Glaphyrosoma huasteca, Cadena-Castañeda & Weissman, 2020

Cadena-Castañeda, Oscar J. & Weissman, David B., 2020, Review of Glaphyrosoma (Orthoptera: Stenopelmatoidea: Anostostomatidae) including new species and biological information, Zootaxa 4779 (1), pp. 1-37: 16-22

publication ID

publication LSID


persistent identifier

treatment provided by


scientific name

Glaphyrosoma huasteca

n. sp.

Glaphyrosoma huasteca   n. sp.

( Figures 11–16 View FIGURE 11 View FIGURE 12 View FIGURE 13 View FIGURE 14 View FIGURE 15 View FIGURE 16 , Map 1) Orthoptera

Holotype. ♂ (in alcohol) Mexico, Tamaulipas, 10 Km N of Altamira on road to Lomas del Real ; 10 m., 8 June 1999. D.B. Weissman, V. F. Lee (D.B. Weissman Stop # 99-47) (F954 Killed 9/21) CASENT 9077209 ( CAS). CAS Entomology type # 19281 ( CAS).  

Paratypes. 3♂. 4♀. Same data as holotype but different codes   . ♂. ( R99-22 killed 9/19)   . ♂. CASENT 9080316   . ♀. (Adult molt 9/23), CASENT 9077206   . ♀. (F953), CASENT 9077210. ( CAS)   ♂. ( R99-24 Killed 9/21, F955), CASENT 9077211   . ♀. (F952), CASENT 9077207   . ♀. (F956), CASENT 9077208 ( CAUD)   .

Description. Male. Body larger for genus, shiny and more or less transversally striped ( Figs. 11A View FIGURE 11 , 15A View FIGURE 15 ): head and majority of tergites dark brown but with lower half of frons ( Fig. 11B View FIGURE 11 ), five narrow longitudinal brown to dark brown stripes on dorsum, pronotum with dark brown disc and light brown lateral lobes, each lobe with dark brown stripe along anterior edge and with brown band along posterior edge ( Figs. 11C, D View FIGURE 11 ); rest of body yellowish with light brown to brown most part of outer surface of hind femur, dark brown small marks in region of femur-tibia articulation of hind leg and partly yellowish scape ( Fig. 11A View FIGURE 11 ). Head rounded, and almost 2.5 times as wide as space between antennal cavities; latter space almost three times as wide as scape; ocelli round, almost equal to each other in size, and as wide as pedicel ( Fig. 11B View FIGURE 11 ). Femora without small inner apical spinule. Middle tibia with four ventral spines on each ventral margin. Hind femur with four transversal main pegs rows with few spinules ( Fig. 11E View FIGURE 11 ), hind tibia with ten spines in the dorsal outer and inner margin. First two abdominal tergites with stridulation pegs smaller than the pegs of the others species, very close together; third abdominal tergite with separate peg patch, but less dense than patches on first two tergites ( Fig. 11D View FIGURE 11 ). Posterior edge of the ninth tergite with a medium notch, partially dividing into two lobes, prolonged and covering the last abdominal tergite ( Fig. 11F View FIGURE 11 ). Tenth tergite hooks, robust and conspicuous with the sclerotized apices ( Figs. 11G, H View FIGURE 11 ). Epiproct with rounded posterior edge; each paraproct cylindrical, elongated, curving upwards from the base, with the rounded apex and without spinula, and with a membranous fold, which stretches on the dorsal edge, from the first basal third to near the apex ( Fig. 11I View FIGURE 11 ). Subgenital plate wider than long, conical styles, posteromedian notch shallow and U-shaped ( Fig. 11J View FIGURE 11 ).

Female. Similar to the male in shape and coloration ( Figs. 12A, B, C, D View FIGURE 12 , 15B View FIGURE 15 ). Hind femur with four to five transversal main pegs rows with few spinules, on inner side near to base ( Fig. 12E View FIGURE 12 ). First two abdominal tergites with pegs as the male’s, but occupying less area than in the male’s tergites, third abdominal tergite, with few pegs ( Fig. 12D View FIGURE 12 ). Tenth tergite slightly divided dorsally, paraprocts without specialization and ovoid; subgenital plate triangular as wide as long, without the projected apex ( Fig. 12F View FIGURE 12 ). Ovipositor gradually curving upwards from the base, apex slightly sharpened, valves without denticulations or depressions along the margins ( Fig. 12G View FIGURE 12 ).

Variation. Apart from size, some specimens, have conspicuous brown stripes covering the dorsum of the body, in contrast to other specimens where the stripes are narrower and the rest of the body is more yellowish.

Measurements (in mm.). Holotype: LB: 27. Pr: 6.5. HF: 16. HT: 1. Paratypes: Male / Female: LB: 25–30/23– 31. Pr: 5.5–6.5/6–7. HF: 15–17/15–16. HT: 13–15.5/12–16. Ov: 10–12.

Etymology. Named in honor of the Huasteca region, where this species was collected.

Comparision. In appearance and coloration, this species is similar to G. tamaulipas   , although G. huasteca   n. sp. is slightly larger. Both species are indistinguishable until examining the terminalia structures. G. tamaulipas   paraprocts are robust, have no folds and are armed with an apical spine. In contrast, the new species has slender, elongated and significantly curved paraprocts, in addition to lacking the dorsal spinula. The subgenital plate also varies between species: in G. tamaulipas   , the posteromedian notch is constricted and moderately deep; for the new species, the posteromedian notch is shallow. The brown stripes of G. huasteca   n. sp. are more conspicuous than in G. tamaulipas   .

Habitat. fields of scrub vegetation and grasses with very sandy substrate in places. Oatmeal put out at 23:30 after late arrival, walked at 00:15 and collected type series.

All specimens collected as late instars and raised to adult in laboratory. Molt to adults from early August to mid-September, 1999.

Drum. R99-22 & R99-24. ( Figs. 13 View FIGURE 13 , 14 View FIGURE 14 ). Male R99-22 drummed at 38.5–43.5 drums/s at 21.5°C with series of 15–18 drums in length ( Fig. 13 View FIGURE 13 ). Male R99-24 drummed at 29.9–31 drums/s at 18.5°C. In the first male, there were 2–3 slow drums before the rapid series while the second male, in 5 of 16 series, had only 1 drum immediately before the fast series ( Fig. 14 View FIGURE 14 ).

Karyotype. T99-4, 5, & 8. All with 2n ♂ = 29. Two cells from T99-44 presented: the largest pair of autosomes are metacentric while autosomal pairs 2 through 14 are all rod shaped. The largest chromosome is the single metacentric X ( Fig. 16 View FIGURE 16 ).

DNA. F953 maps ( Fig. 2 View FIGURE 2 ) in Vandergast et al. (2017) closest to G. brevivaginalis   .

MAP 1. Geographical distribution of the Mexicanum Group


Royal British Columbia Museum - Herbarium


California Academy of Sciences