Andeogryllus magdalenensis Cadena-Castañeda, 2021

Cadena-Castañeda, Oscar J., Rodríguez, Martha Carolina Vásquez, Gonzalez, Gloria Raquel Dávila & López, Víctor Hugo Grande, 2021, Studies on Neotropical crickets: A new Anurogryllina genus (Orthoptera Gryllidae: Gryllinae), Zootaxa 4985 (3), pp. 371-380 : 377

Andeogryllus magdalenensis Cadena-Castañeda n. sp.

( Fig. 1 and 2 )

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:514435

Etymology. The specific epithet refers to the valley and slopes of the Magdalena River, where this species was collected.

Type material. Holotype. Male. Colombia, Cundinamarca, Tena , 4.654617 N, 74.389647 W. 1340 m. 27 April 1991. A. Castillo ( CAUD) . Paratypes. 2 males. Colombia, Cundinamarca, Venecia , 4.091264 N, 74.478956 W. 1620 m. D. Rueda & A. Zapata ( CAUD) .

Description. In addition to characters to the genus: Male. Mid-sized. Predominantly dark brown ( Fig. 1 ), cephalic capsule with the dorsal surface from the vertex to the fastigium, between the middle of the antennal sockets and partially the clypeus black ( Figs. 1A, B ); surrounding area of ocelli, lower margin of genae and frons ocher; ocelli yellow; eyes greenish-brown; mesal portion of the fore and middle femur on the inner side yellowish-brown ( Fig. 1C ); hind femur brown with dark brown stripes alternating with faint and narrow yellowish-brown stripes. The cell of the posterior margin of the mirror, occupying a third of the length of the mirror ( Fig. 1A ). Stridulation file with 102-107 funtional teeth (length 3.3 mm and 31-33 teeth per mm) ( Fig. 1D ). Tarsomeres of hind leg with 7-8 outer and 5-6 inner dorsal spines. Genitalia: Median lophi subdivided into two plates ( Figs. 2A, B ); dorsal plate rounded distally and with two denticulations outward near the apex on each side ( Fig. 2A ), ventral plate obliquely truncated and constricting at connection with lateral lobes ( Fig. 2B ), medial incision V-shaped, narrow and shallow; lateral lobe shaped like a shoulder blade and with a straight apex ( Figs. 2A, B ). Pseudepiphallic parameres with truncated and wavy apex ( Figs. 2C, D ), dilated and rounded inner margin, then steeply tapering into a peduncle towards the base ( Fig. 2 B ). Ectophallic fold not surpassing the apex of the median lobe ( Figs. 2B, D ).

Female. Unknown.

Measurements (in mm.). Holotype: LB: 14.5. Pr: 3.2. Teg: 8.5. HF: 11.5. HT: 8. Paratypes: LB: 14-15. Pr: 3-3.5. Teg: 8-8.5. HF: 11-12. HT: 8-8.5.

Figures

FIGURE 1. Andeogryllus magdalenensis n. gen. et n. sp. Male habitus in A. Lateral B. dorsal and C. axial views respectively. D. Stridulation file.

FIGURE 2. Andeogryllus magdalenensis n. gen. et n. sp. Male genitalia in A. Dorsal B. ventral C. axial and D. lateral views respectively.