Lanta Hebard, 1921

Valverde, Alejandra C., Crespo, Francisco A. & Iglesias, Mónica S., 2016, Contribution to the knowledge of Lanta Hebard, 1921, with remarks on some male genital characters (Blattaria, Ectobiidae), Zootaxa 4092 (1), pp. 140-144 : 140-141

Lanta Hebard, 1921 .

Type species: Lanta scotia Hebard, 1921 (original designation)

Diagnosis. Head. Ocelli distinct, with the flat surfaces of ocellar areas forming a rather sharp angle with the plane of the interocellar space.

Thorax. Wings with radial and unbranched medial veins connected by numerous transverse veinlets; the anterior cubital vein forked, shows numerous transverse veinlets. Intercalated triangle very broad, conspicuous and curled when the wings are at rest (Hebard 1921). Cephalic femora with ventro-cephalic margin proximally armed with one ( L. scotia and L. peniculiger ) or two ( L. borgesae ) elongated spines, succeeded by a row of minute spiniform hairs, in addition to one or two elongated, distal spines.

Abdomen. Tergites VII and VIII smooth, lacking glandular apertures.

Members of Lanta can be confused with the smallest species of Ischnoptera Burmeister, 1838 . Lanta can be distinguished by their relatively smaller and narrower body, the latter covered with fine pilosity, and their trapezoidal pronotum with two light impressions which converge posteriorly ( Fig. 2 ). Males of all the species included in the genus Ischnoptera always present a characteristic glandular aperture on the VII and VIII tergites; the same are absent in Lanta .

Figures

FIGURES 1 – 24. Lanta borgesae. 1. Head, ventral view. 2. Pronotum, dorsal view. 3. Tegmen. 4. Wing. 5. Subgenital plate, ventral view. 6. Supra-anal plate, dorsal view. 7. Paraprocts and supra-anal plate, ventral view. 8. Diagram of the genital sclerite disposition, dorsal view. 9. Fore leg femur spines, anterior view. 10 – 11. Supra-anal plate, dorsal view. 12 – 13. Sclerite R 6 of right phallomere. 14. Subgenital plate, dorsal view. 15. Styli, dorsal view. 16 – 17. L 3, sclerite of left complex, ventral view. 18. L 2 + via, sclerites of the left complex, ventral view. 19 – 20. Apex of L 2 + via, ventral view. 21 – 23. Right phallomere, ventral view. 24. R 4, scheme. Abbreviations A = anal veins; cwe = R 1 S with R 2 is joined in a bulge-like cuticle; Cu a = cubital anterior vein; dp = dorsal process; L 2 + via and L 3 = sclerite of the left complex; M = medial veins; P = paraprocts; R = radial veins; Rs = radial sector; R 1 P, R 1 S, R 2, R 3, R 4, R 6 = right phallomere sclerites; S IX = sternite IX; Sc = subcostal vein; st = styli; T X = tergite X; vp = ventral process. Scales. Figs 1 – 9: 1 mm and Figs 10 – 24: 0.1 mm.