Eldaina, Estrada-Álvarez, 2022

Estrada-Álvarez, Julio Cesar, 2022, Descripción de un nuevo género y siete nuevas especies de cucarachas (Blattodea: Blattellidae) para el Neotrópico mexicano, Revista Chilena de Entomología (Rev. Chil. Entomol.) 48 (2), pp. 199-229 : 202-204

Key to species of the genus Eldaina gen. n.

Seventh tergit (T-7) modified, with tergal structures ( Fig. 1f ); sub-genital plate (Ls-g)

asymmetric ( Fig. 1j )…………………………………………….....………………….males…1

Simple tergites; sub-genital plate (Ls-g) symmetrical ( Fig. 3f )………………..……..…………. females.....................................................................................................................................…8

Males

1a. Short right style (sd) ( Figs. 1i , 4h , 6h , 8f , 10c ); ventral extension of R 3 (ev-R 3) with short, weak spines, joined by hyaline tissue ( Figs. 2g , 4m , 6o , 8n )...………….……………… Yangai species-group….....................................................................................................……2

1b. long right style (sd) ( Figs. 11f , 13g , 15g ); ventral extension of R 3 (ev-R 3) with robust or long spines, generally united by coriaceous or sclerosed tissue, pectiniform ( Figs. 11o , 13n , 15n )....……………………………………………...…Tzilacatzini species-group..……6

Yangai species-group

2a. Dorsal sclerite (ed) of the right paraproct (pd) with robust spines ( Fig. 10d )…………… … ………………………………………………………....……….... E. caussaneli (Grandcolas)

2b. Dorsal sclerite (ed) of right paraprocte with spines not so robust ( Figs. 1h , 4f , 6f , 8d )....3

3a. Right style (sd) with three apical spines ( Fig. 6j )……………......….... E. cuauhpillum sp. n.

3b. Right style (sd) with less than three apical spines ( Figs. 1i , 4h , 8h )…………...………….4

4a. Left paraproct (pi) with bifid apex ( Fig. 4f )…………………...………..… E. sormanii sp. n.

4b. Left paraproct (pi) with simple apex ( Figs. 1g, 1h , 8d )………….…...........................….…5

5a. Ventral sclerite of right paraproct with three apical spines ( Fig. 8e ); ventral extension of R 3 (ev-R 3) with three spines ( Fig. 8n )…………………..………..……. E. motecuzumai sp. n.

5b. Ventral sclerite of right paraproct with two apical spines ( Fig. 1h ); ventral extension of R 3 (ev-R 3) with five spines ( Fig. 2g )………….………………..…….…….…. E. yangai sp. n.

Tzilacatzini species-group

6a. L 3 with claw-shaped apex ( Figs. 15j, 15k ); ventral extension of R 3 (ev-R 3) with five conspicuously thin spines ( Fig. 15n )…………………………....……..….. E. tlacaelleli sp. n.

6b. L 3 with tapered apex, but not claw-shaped apex ( Figs. 11k , 13i ); ventral extension of R 3 (ev-R 3) with robust spines ( Figs. 11o , 13n )…………………………………………….…….7

7a. Dorsal sclerite (ed) of the right paraproct (pd) with three spines, the outermost with three apical spines; left paraproct (pi) with three apical spines ( Fig. 13f ); ventral extension of R 3 (ev-R 3) with five spines ( Fig. 13n )…………………………....………. E. ocelopillum sp. n.

7b. Dorsal sclerite (ed) of right paraproct (pd) with two spines, left paraproct (pi) with two apical spines ( Fig. 11h ); ventral extension of R 3 (ev-R 3) with seven spines ( Fig. 11o )…… ........................................................................................................................ E. tzilacatzini sp. n.

Females

8a. Clear species; bsv. little sclerosed ( Figs. 3h , 5g , 7f )…………..…Yangai species-group.…9

8b. Dark species; bsv. well sclerosed ( Figs. 12f , 14e , 16f )...….Tzilacatzini species-group.....13

Yangai species-group

9a. Sub-genital plate (Ls-g) with truncated posterior margin ( Fig. 10h ).................................... ............................................................................................................ E. caussaneli (Grandcolas)

9b. Sub-genital plate (Ls-g) with rounded posterior margin ( Fig. 3f )…….................………10

10a. Left side of vlf.I.a without spinous corpuscles ( Fig. 3h )……..….…..……. E. yangai sp. n.

10b. Left side of vlf.I.a with bundles of spinous corpuscles ( Figs. 5g , 7f )…...................…....11

11a. Left side of vlf.I.a with more than 10 spinous corpuscles ( Fig. 9a )…… ................................................................................................……….…… E. motecuzomai sp. n.

11b. Left side of vlf.I.a with less than 10 spinous corpuscles ( Figs. 5g , 7f )…...……..……...12

12a. Mesopterus tegmina ( Fig. 7a ); left side of vlf.I.a in the middle part with five spinous corpuscles with posterior direction ( Fig. 7f )…………………....…….. E. cuauhpillum sp. n.

12b. Brachypterus tegmina ( Fig. 5a ); left side of vlf.I.a with four oblique spinous corpuscles near apex ( Fig. 5g )……..……………………………………………......…... E. sormanii sp. n.

Tzilacatzini species-group

13a. bsv. underdeveloped ( Fig. 12f )…………………….………………..…. E. tzilacatzini sp. n.

13b. bsv. expanded ( Figs. 14e , 16f )……….….....……………………………..…………….…..14

14a. Left side of vlf.I.a with at least five spaced spinous corpuscles ( Fig. 14e ).................... ..................................................................................................................… E. ocelopillum sp. n.

14b. Left side of vlf.I.a with at least three closely spaced spinous corpuscles ( Fig. 16f )… .......................................................................................................................… E. tlacaelleli sp. n.

Grupo Yangai

Especies claras en comparación con las del grupo Tzilacatzini. Machos con estilo derecho (sd) corto ( Figs. 1i, 1j , 4h, 4i , 6h, 6i , 8f, 8g , 10c ); ev-R 3 con dos a cinco espinas cortas ( Figs. 2e , 4m , 6n , 8l , 10g ). Hembras con ambos lados del primer brazo del vasilifer (vlf.l.a) poco esclerosados ( Figs. 3h , 5g , 7f ). / Clear species compared with the species of Tzilacatzini species-group. Males with short right style (sd) ( Figs. 1i, 1j , 4h, 4i , 6h, 6i , 8f, 8g , 10c ); ev-R3 with two to five short spines ( Figs. 2e , 4m , 6n , 8l , 10g ). Females with both sides of the first vasilifer arm (vlf.l.a) slightly sclerosed ( Figs. 3h , 5g , 7f ).

Especies. Eldaina yangai sp. n., E. sormanii sp. n., E. cuauhpillum sp. n., E. motecuzomai sp. n., E. caussaneli ( Grandcolas, 1992) .

Figures

Figuras 1a-k. Eldaina yangai sp. n. (a-b) Holotipo macho, vistas dorsal y ventral. (c) Pronoto. (d) Rostro. (e) Abdomen, vista dorsal. (f) Tergito siete (T-7). (g-h) Lámina supra-anal, vistas ventral y posterior. (i-j) Lámina sub-genital, vistas ventral y dorsal. (k) Genital masculino, vista dorsal. Escalas: a, b=10 mm; c, d, e=2 mm; g-k=1 mm. / (a-b) Male holotype, dorsal and ventral views. (c) Pronotum. (d) Rostrum. (e) Abdomen, dorsal view. (f) Tergite seven (T-7). (g-h) Supra-anal plate, ventral and posterior views. (i-j) Subgenital plate, ventral and dorsal views. (k) Male genitalia, dorsal view. Scales: a, b=10 mm; c, d, e=2 mm; g-k=1 mm.

Figuras 2a-g. Eldaina yangai sp. n. Genital masculino holotipo. (a-c) L 3, vistas dorsal, ventral y detalle región apical. (d) L2. (e-f) Escleritos derechos (R), vistas dorsal y ventral. (g) Detalle ev-R3. Escala=1 mm. / Holotype male genitalia (a-c) L 3,dorsal and ventral views, and detail apical region. (d) L 2. (e-f) Right sclerites (R), dorsal and ventral views. (g) Detail ev-R 3. Scale=1 mm.

Figuras 3a-i. Eldaina yangai sp. n. (a-b) Paratipo hembra, vistas dorsal y ventral. (c) Pronoto. (d) Rostro. (e-f) Lámina sub-genital, vista ventral; (e) antes de la digestión; (f) después de la digestión. (g) Lámina supra-anal, vista ventral. (h-i) Complejo valvar, vistas dorsal y ventral. Escalas: a, b=10 mm; c, d=2 mm; e-i=1 mm. / (a-b) Female paratype, dorsal and ventral views. (c) Pronotum. (d) Rostrum. (e-f) Sub-genital plate, ventral view; (e) before digestion; (f) after digestion. (g) Supra-anal plate, ventral view.(h-i) Valvar complex, dorsal and ventral views. Scales: a, b=10 mm; c, d=2 mm; e-i=1 mm.

Figuras 4a-n. Eldaina sormanii sp. n. (a-b) Holotipo macho, vistas dorsal y ventral. (c) Pronoto. (d) Rostro. (e) Tergito siete (T-7. (f-g) Lámina supra-anal, vista ventral y posterior. (h-i) Lámina subgenital, vistas ventral y dorsal. (j-k) L 3, vistas dorsal y ventral. (l) L 2. (m-n) Escleritos derechos (R), vistas dorsal y ventral. Escalas: a, b=10 mm; c, d=2 mm; e-n=1 mm. / (a-b) Male holotype, dorsal and ventral views. (c) Pronotum. (d) Rostrum. (e) Tergite seven (T-7). (f-g) Supra-anal plate, ventral and posterior views. (h-i) Subgenital plate, ventral and dorsal views. (j-k) L 3, dorsal and views. (l) L 2. (m- n) Right sclerites (R), dorsal and ventral views. Scales: a, b=10 mm; c, d=2 mm; e-n=1 mm.

Figuras 5a-h. Eldaina sormanii sp. n. (a-b) Paratipo hembra, vistas ventral y dorsal. (c) Pronoto. (d) Rostro. (e) Lámina sub-genital, vista ventral. (f) Paraprocto izquierdo. (g-h) Complejo valvar, vistas dorsal y ventral. Escalas: a, b=10 mm; c-e=2 mm; f-h=1 mm. / (a-b) Female paratype, ventral and dorsal views. (c) Pronotum. (d) Rostrum. (e) Subgenital plate, ventral view. (f) Left paraproct. (g-h) Valvar complex, dorsal and ventral views. Scales: a, b=10 mm; c-e=2 mm; f-h=1 mm.

Figuras 6a-o. Eldaina cuauhpillum sp. n. (a-b) Holotipo macho, vistas dorsal y ventral. (c) Pronoto. (d) Rostro. (e) Tergito siete (T-7). (f) Lámina supra-anal, vista ventral. (g) Escleritos del paraprocto derecho. (h-i) Lámina sub-genital, vistas ventral y dorsal. (j) Procesos espinosos de sd. (k-l) L 3, vistas dorsal y ventral. (m) L2. (n-o) Escleritos derechos (R), vistas dorsal y ventral. Escalas: a, b=10 mm; c, d=2 mm; e-o=1 mm; g, j sin escala. / (a-b).Male holotype, dorsal and ventral views. (c) Pronotum. (d) Rostrum. (e) Tergite seven (T-7). (f) Supra-anal plate, ventral view. (g) Sclerites of the right paraproct. (h-i) Sub-genital plate, ventral and dorsal views. (j) Spinous processes of sd. (k-l) L3, dorsal and ventral views. (m) L . (n-o) Right sclerites (R), dorsal and ventral views. Scales: a, b=10 mm; c, d=2

Figuras 7a-i. Eldaina cuauhpillum sp. n. (a-b) Paratipo hembra, vistas dorsal y ventral. (c) Pronoto. (d) Rostro. (e) Paraprocto izquierdo. (f-g) Complejo valvar, vistas dorsal y ventral. Escalas: a, b=10 mm; c, d=2 mm; e-g=1 mm. / (a-b) Paratype female, dorsal and ventral views. (c) Pronotum. (d) Rostrum. (e) Left paraproct. (f-g) Valve complex, dorsal and ventral views. Scales: a, b=10 mm; c, d=2 mm; e-g=1 mm.

Figuras 8a-n. Eldaina motecuzomai sp. n. (a-b) Holotipo macho, vistas dorsal y ventral. (c) Tergito siete (T-7). (d, e) Lámina supra-anal, vistas ventral y posterior. (f-g) Lámina sub-genital, vistas ventral y dorsal. (h) Procesos espinosos de sd. (i-j) L 3, vistas dorsal y ventral. (k) L 2. (l-n) Escleritos derechos (R), vistas dorsal y ventral. (n) Detalle ev-R 3. Escalas: a, b=10 mm; c, d=2 mm; e-m=1 mm; n sin escala. / (a-b) Male holotype, dorsal and ventral views. (c) Tergite seven (T-7). (d, e) Supra-anal plate, ventral and posterior views. (f-g) Sub-genital plate, ventral and dorsal views. (h) Spinous processes of sd. (i-j) L 3, dorsal and ventral views. (k) L 2. (l-n) Right sclerites (R), dorsal and ventral views. (n) Detail ev-R3. Scales: a, b=10 mm; c, d=2 mm; e-m=1 mm; n unscaled.

Figuras 9a-c. Eldaina motecuzomai sp. n. Paratipo hembra. (a-b) Complejo valvar, vistas dorsal y ventral. (c) Paraprocto izquierdo. Escala=1. / Female paratype. (a-b) Valvar complex, dorsal and ventral views. (c) Left paraproct. Scale=1 mm.

Figuras 10a-h. Eldaina caussaneli (Grandcolas, 1992). (a-b) Holotipo macho, vistas dorsal y ventral. (c) Lámina sub-genital, vista dorsal. (d) Paraproctos. (e) L 1 y L 3. (f) L 2. (g) Escleritos derechos (R). (h) Paratipo hembra, lámina sub-genital. Escalas: a, b=10 mm; c, g=1 mm. / (a-b) Male holotype, dorsal and ventral views. (c) Subgenital plate, dorsal view. (d) Paraprocs. (e) L 1 and L 3. (f) L 2. (g) Right sclerites (R). (h) Female paratype, sub-genital plate. Scales: a, b=10 mm; c, g=1 mm.

Figuras 11a-o. Eldaina tzilacatzini sp. n. (a-b) Holotipo macho, vistas dorsal y ventral. (c) Pronoto. (d) Rostro. (e) Tergito siete (T-7). (f-g) Lámina sub-genital, vistas ventral y dorsal. (h) Lámina supra-anal, vista ventral. (i-k) L3,vistas dorsal y ventral. (k) Detalle del ápice. (l) L2. (m-o) Escleritos derechos (R), vistas dorsal y ventral. (o) Detalle ev-R 3. Escalas: a, b=10 mm; c, d=2 mm; e-m=1 mm; k, o sin escalas. / (a-b) Male holotype, dorsal and ventral views. (c) Pronotum. (d) Rostrum. (e) Tergite seven (T-7). (f-g) Sub-genital plate, ventral and dorsal views. (h) Supra-anal plate, ventral view. (i-k) L3, dorsal and ventral views. (k) Apex detail. (l) L 2. (m-o) Right sclerites (R), dorsal and ventral views. (o) Detail ev-R 3. Scales: a, b=10 mm; c, d=2 mm; e-m=1 mm; k, o unscaled.

Figuras 12a-g. Eldaina tzilacatzini sp. n. (a-b) Paratipo hembra, vistas dorsal y ventral. (c) Pronoto. (d) Rostro. (e) Paraprocto izquierdo.(f-g) Complejo valvar, vista dorsal y ventral.Escala: a-b=10 mm; c, d=2 mm; e-g=1 mm. / (a-b) Paratype female, dorsal and ventral views. (c) Pronotum. (d) Rostrum. (e) Left paraproct. (f-g) Valvar complex, dorsal and ventral view. Scales: a-b=10 mm; c, d=2 mm; e-g=1 mm.

Figuras 13a-n. Eldaina ocelopillum sp. n. (a-b) Holotipo macho, vistas dorsal y ventral. (c) Pronoto. (d) Rostro. (e) Tergito siete (T-7). (f) Lámina supra-anal, vista ventral. (g-h) Lámina sub-genital, vistas ventral y dorsal. (i-j) L 3, vistas dorsal y ventral. (k) L 2. (l-n) Escleritos derechos (R), vistas dorsal y ventral. (n) Detalle ev-R3. Escalas: a, b=10 mm; c, d=2 mm; e-m=1 mm; n sin escala. / (a-b) Male holotype, dorsal and ventral views. (c) Pronotum. (d) Rostrum. (e) Tergite seven (T-7). (f) Supra-anal plate, ventral view. (g-h) Subgenital plate, ventral and dorsal views. (i-j) L 3, dorsal and ventral views. (k) L2. (l-n) Right sclerites (R), dorsal and ventral views. (n) Detail ev-R3. Scales: a, b=10 mm; c, d=2

Figuras 14a-f. Eldaina ocelopillum sp. n. Paratipo hembra (a) Pronoto. (b) Rostro. (c) Lámina subgenital, vista ventral. (d) Paraprocto izquierdo. (e-f) Complejo valvar, vistas dorsal y ventral. Escalas: a-c=2 mm; f-h=1 mm. / Female paratype (a) Pronotum. (b) Rostrum. (c) Subgenital plate, ventral view. (d) Left paraproct. (e-f) Valvar complex, dorsal and ventral view. Scales: a-c=2 mm; f-h=1 mm.

Figuras 15a-o. Eldaina tlacaelleli sp. n. (a-b) Holotipo macho, vistas dorsal y ventral. (c) Pronoto. (d) Rostro. (e) Tergito siete (T-7). (f) Lámina supra-anal, vista ventral. (g-h) Lámina sub-genital, vistas ventral y dorsal. (i) L 2. (j-k) L 3, vistas dorsal y ventral. (l-n) Escleritos derechos (R), vistas dorsal y ventral. (n) Detalle ev-R. Escalas: a, b=10 mm; c, d=2 mm; e-m= 1 mm; n sin escala. / (a-b) Male 3 holotype, dorsal and ventral views. (c) Pronotum. (d) Rostrum. (e) Tergite seven (T-7). (f) Supra-anal plate, ventral view. (g-h) Subgenital plate, ventral and dorsal views. (i) L 2. (j-k) L 3, dorsal and ventral views. (l-n) Right sclerites (R), dorsal and ventral views. (n) Detail ev-R3. Scales: a, b=10 mm; c, d=2

Figuras 16a-g. Eldaina tlacaelleli sp. n. (a-b) Paratipo hembra, vistas dorsal y ventral. (c) Pronoto. (d) Rostro. (e) Paraprocto izquierdo. (f-g) Complejo valvar, vistas dorsal y ventral. Escalas: a-b=10 mm; c, d=2 mm; e-g=1 mm. / (a-b) Female paratipe, dorsal and ventral views. (c) Pronotum.(d) Rostrum. (e) Left paraproct. (f-g) Valvar complex, dorsal and ventral views. Scales: a-b=10 mm; c, d=2 mm; e-g=1 mm.