Cahita gutierrezi, Núñez-Bazán & Estrada-Álvarez & Sormani & Osorio-Beristain, 2021

Núñez-Bazán, Reinier, Estrada-Álvarez, Julio Cesar, Sormani, Carlo G. & Osorio-Beristain, Marcela, 2021, New data on Blaberoidea Saussure, 1864 (Insecta: Blattodea) from Morelos, Mexico, with a new species and a checklist of cockroaches for the state, Revista Chilena de Entomología (Rev. Chil. Entomol.) 47 (4), pp. 689-708 : 698

Cahita gutierrezi sp. n.

( Figs. 5 , 6 )

Type material. Holotype male from 2 da Privada de los Pinos, Cuernavaca , Morelos; muerta en piso; 20/XI/2020; Reinier Núñez coll. ( CER), at CNIN.

Diagnosis. This species can be easily separated from C. nahua and C. yaqui by the emargination of the posterior border of the subgenital plate and the reticulation of the tegminas.

Etymology. We dedicate this species in honor to Dr. Esteban Gutiérrez, great friend, colleague, professor, and researcher of the Museo Nacional de Historia Natural de La Habana, Cuba. For his contribution to the knowledge of the cockroaches of America.

Description. Holotype male: Total length 29 mm; body length 22 mm. Color: Usually amber, pronotum without distinguishable pattern; brown-orange abdomen with whitish posterior edges. Head: 2.5 mm long, 2.5 mm wide; interocular distance 1 mm; distance between eyespots 1.1 mm; distance between antennae 1.3 mm ( Fig. 5d ). Pronotum: subtriangular, rounded in the anterior margin and basal angles, posterior margin slightly proJected. Wings: tegmen macropterous, 16 mm long, 7 mm wide, presence of a pseudo-reticulate veins pattern ( Figs. 4d , 5a, 5b ); hind wings of 15 mm long, anal area folded into a fan shape. Legs ( Fig. 5e ): femur I with spination type B2 (sensu Roth 2003) in the anteroventral margin, four subequal basal spines, 11 middle spinules and two apical spines; femur II and III with one appendicular spine; tarsomeres I-IV of the three legs with numerous spinules on the prolateral margin, pulvillus of about the size of the internal length in each tarsomere I-IV; tarsal claws simple and asymmetric; aureolum between the nails, of about 80% of the length of the tarsal claws. Abdomen: With brush type tergal glands in tergite I ( Figs. 5g, 5h ); supra-anal plate triangular, proJected posteriorly, asymmetric paraproctus; pincer-shaped ( Fig. 5i ); subgenital plate (hypandrium) slightly asymmetric, with similar and finger-like styles ( Figs. 5j, 5k ). Male genitalia ( Figs. 5k , 56): L1 wide type with an inflection point ( Fig. 6a ); L2vm simple stick shape, L2d sickle shape (6b); L3 (genital hook) short and sclerosed (6c); R1 tapered ( Fig. 6d ); R2 curved ( Fig. 6e ); R3 laminate with multiple folds (6f).

Distribution. Known only to the type locality, colony Loma Bonita, Cuernavaca, Morelos, Mexico.

Note. Male holotype presents a teratology in the last basal spine, which makes the apex to have a bifid shape ( Fig. 5f ).

Figures

Figure 4. Comparison between three species of the genus Cahita Hebard present in Mexico. 4a, 4b, 4h, 4i.Cahita nahua. 4a, 4b. Types from MHNG in dorsal view. 4h. Posterior margin of the supra-anal plate in dorsal view. 4i. Posterior margin of the subgenital plate in dorsal view (reconstructed from Hebard 1922 and Rehn 1937). 4c, 4d, 4f, 4g. Cahita gutierrezi sp. n. 4c. Type in dorsal view. 4d. Detail of the pseudo-reticulate veins pattern in the tegminas. 4f. Posterior margin of the supra-anal plate in dorsal view. 4g. Posterior margin of the subgenital plate in dorsal view. 4e, 4J, 4k. Cahita yaqui. 4e. Dorsal view of type from ANSP (photograph courtesy of Esteban Gutiérrez). 4J. Posterior margin of the supra-anal plate in dorsal view. 4k. Posterior margin of the subgenital plate in dorsal view. / Comparación entre tres especies del género Cahita Hebard presentes en México. 4a, 4b, 4h, 4i. Cahita nahua. 4a, 4b. Vista dorsal de los tipos en MHNG. 4h. Margen posterior de la lámina supra-anal en vista dorsal. 4i. Margen posterior de la lámina subgenital en vista dorsal. 4c, 4d, 4f, 4g. Cahita gutierrezi sp. n. 4c. Tipo en vista dorsal. 4d. Detalle del patrón de venación pseudo-reticulado de las tegminas. 4f. Margen posterior de la lámina supra-anal en vista dorsal. 4g. Margen posterior de la lámina subgenital en vista dorsal. 4e, 4J, 4k.Cahita yaqui. 4e. Vista dorsal del tipo en ANSP (fotografÍa cortesÍa de Esteban Gutiérrez). 4J. Margen posterior de la lámina supra-anal en vista dorsal. 4k. Margen posterior de la lámina subgenital en vista dorsal.

Figure 5. Cahita gutierrezi sp. n. 5a-5b. Dorsal and ventral habitus of the type. 5c. Detail of pronotum. 5d. Detail of rostrum. 5e, 5f. Leg I. 5f. Detail of spine showing a teratology. 5g, 5h. Detail of tergal gland in T-1. 5g. Before digestion. 5h. After digestion. 5i. Supra-anal plate in ventral view showing paraproctus. 5J-5k. Subgenital plate. 5J. Ventral view. 5k. Dorsal view, showing the sclerites in orthodox positions. / Cahita gutierrezi sp. n. 5a-5b. Hábito dorsal y ventral del tipo. 5c. Detalle del pronoto. 5d. Detalle del rostro. 5e, 5f. Pata I. 5f. Detalle de la espina con teratologÍa. 5g, 5h. Detalle de glándula tergal en T-1. 5g. Antes de la digestión. 5h. Después de la digestión. 5i. Lámina supraanal en vista ventral mostrando los paraproctos. 5J-5k. Lámina subgenital. 5J. Vista ventral. 5k. Vista dorsal, mostrando los escleritos en posición ortodoxa.

Figures 6-7. 6. Male genitalia sclerites of Cahita nahua (Saussure) from Cuernavaca, Morelos. 6a. L1. 6b. L2d and L2vm. 6c. L3. 6d. R1. 6e. R2. 6f. R3. 7. Caloblatta sp. near C. lampra Hebard from Huautla Estación CEAMISH. / 6. Escleritos genitales del macho de Cahita nahua (Saussure) de Cuernavaca, Morelos. 6a. L1. 6b. L2d y L2vm. 6c. L3. 6d. R1, 6e. R2. 6f. R3. 7. Caloblatta sp. cercana a C. lampra Hebard de Huautla Estación CEAMISH.