Agroecotettix glochinos, Hill, 2024

Hill, JoVonn G., 2024, Desert diversification: revision of Agroecotettix Bruner, 1908 (Orthoptera, Acrididae, Melanoplinae) with descriptions of sixteen new species from the United States and Mexico, ZooKeys 1218, pp. 177-230 : 177-230

Agroecotettix glochinos sp. nov.

Figs 4 D , 5 D , 10 A – J , 25 , 26 B

Diagnosis.

Easily differentiated from other species in the genus by the combination of male cerci that have the lower branch longer than the dorsal branch (Fig. 10 A, B ) and the male aedeagus with a thickened sheath, valves that are longer than the sheath, and in caudal view the valves of the aedeagus are widen laterally in their mid-section, and abruptly narrow apically such that the dorsal apieces form acute parallel points; the ventral apices of the valves are broadly rounded (Figs 4 D , 10 C – G ). In lateral view the valves are directed apically instead of dorsally as in all other Agroecotettix species (Figs 5 D , 10 C – G ).

Male measurements (mm).

(n = 2) Body length 13.3–18.7 (mean = 16); pronotum length 2.9–4.1 (mean = 3.5); tegmen length 2.2–3.0 (mean = 2.6); hind femur length 7.3–10.0 (mean = 8.7); cerci length 0.8–1.1 (mean = 1.0); basal width of cercus 0.4–0.5 (mean = 0.5); mid-cercal width 0.2–0.3 (mean = 0.3); cerci dorsal fork length 0.1–0.3 (mean = 0.2); cerci dorsal fork apex width 0.1–0.2 (mean = 0.2); cerci ventral fork length 0.2–0.4 (mean = 0.3); cerci ventral fork apex width 0.1 (mean = 0.1).

Phallus measurements (mm).

(n = 1) Length 0.8; apex width 0.3; middle width 0.4; basal width 0.6; lateral apex width 0.5; lateral medial width 0.7; lateral basal width 0.7.

Female measurements (mm).

(n = 3) Body length 21.3–23.3 (mean = 22.0); pronotum length 4.7–5.1 (mean = 4.9) tegmen length 3.5–3.8 (mean = 3.7); hind femur length 10.8–11.7 (mean = 11.2); dorsal ovipositor valve length 1.3–1.5 (mean = 1.3); ventral ovipositor valve length 1.3–1.5 (mean = 1.4).

Holotype.

• 1 ♂, Mexico, Nuevo Leòn, 7 mi SE Galeana , 11 August 1959, 5350 ’, T. J. Cohn, # 166. Deposited in the Mississippi Entomological Museum.

Specimens examined.

Mexico, Nuevo Leòn: • 7 mi SE Galeana , 11 August 1959, T. J. Cohn, 5350 ’ (1 ♂, 3 ♀) .

Habitat.

Cohn (1959) does not include a habitat description for the single locality from which this species is known.

Distribution.

Known only from the type locality at this time (Figs 25 , 26 B ).

Etymology.

glochinos Greek = point of an arrow, in reference to the pointed, arrowhead-like shape of the aedeagus.

Suggested common name.

Arrowhead aridland scrub jumper.

Figures

Figure 4. Caudal view of the aedeagus of Agroecotettix A. A. silverheelsi B A. aristus C A. xiphophorus D A. glochinos E A. texmex F A. cumbres G A. crypsidomus H A. burtoni I A. moorei J A. chiantiensis K A. forcipatus L A. quitmanensis M A. dorni N A. chisosensis O A. turneri P A. vaquero Q A. idic R A. kahloae. Scale bars: 1.0 mm.

Figure 5. Lateral view of the aedeagus of Agroecotettix A A. silverheelsi B A. aristus C A. xiphophorus D A. glochinos E A. texmex F A. cumbres G A. crypsidomus H A. burtoni I A. moorei J A. chiantiensis K A. forcipatus L A. quitmanensis M A. dorni N A. chisosensis O A. turneri P A. vaquero Q A. idic R A. kahloae.

Figure 10. Agroecotettix glochinos A dorsal view of male terminalia B lateral view of male terminalia C dorsal view of phallic complex D lateral view of phallic complex E dorsal view of aedeagus F lateral view of aedeagus G caudal view of the aedeagus H dorsal view of epiphallus I caudal view of epiphallus J habitus.

Figure 25. Distribution of Agroecotettix species.

Figure 26. Distribution of Agroecotettix species A Big Bend region of Texas B zoom in on the area around Monterrey, Mexico at the convergence of the Chihuahuan Desert, Sierra Madre Oriental, and South Texas Plains ecoregions.