2 ORTHOPTERA 



j^' . Apical half of antenna setaceous .... 3. Genus Paratropes, Serville. 



2' . Tegmina truncate, short, unngs minute 4. Genus Heminyctobora, Saussure & Zehntner. 



i' . Taisi witli minute pulvilli and no aiolia 5. Genus Megaloblatta, Dohrn. 



1. Genus NYCTIBORA, Burmeister 



Nyctibora, Burmeister, Handb. Ent. Vol. 2, p. 5oi (iS38). 

 Nyctobora. Saussure, Mem. Hist. Nat. Mexique, Blatt. p. 65 (1864). 



Characters. — Antennae setaceous, only slightlj' incrassated. Pronotum parabolic, posteriori)' 

 sub-truncate, sides deflexed. Tegmina with marginal area broad, near apex equal to half the total 

 breadth of the tegmen. Wmgs rounded with anterior field broader than posterior, semi-corneous, ulnar 

 vein with many rami. Femora strongly armed beneath. Pulvilli large, occupying the entire length of the 

 second, third and fourth tarsal joints. Cerci long, pointed. 



Geographical distribution of species. — Central and South Ameiica. 



1. iV. /mifl/rt,Thunberg, Mem. Acad. Sc. St. Petersb. Vol. 10, p. 277(i826)(Brazil). — Plate, Fig. 5, 9. 



N. ieiiccn. Burmeister, Handb. Ent. Vol. 2, p. 5oi {i838). 



UUiltd diuryi, Serville, Hist. Nat. Ins. Orth. p. 86 (1S39). 



N. terreslris, Saussure, Rev. Zool. (2), Vol. 16, p. 3i5 (1864); Mem. Mexique, Blatt. p. 68 (1S64). 



2. N. brunnea, Thunberg, Mem. Acad. Sc. St. Petersb. Vol. 10, p. 278 (1826) (Brazil). 



N. holo$ericea, Burmeister, Handb. Ent. Vol. 2, p. 5o2 (iS38). 



N. obscura, Saussure, Rev. Zool. {2), Vol, 16, p. 3i6 (1864); Mem. Mexique. Blatt. p. 67, pi. i, f. 9 (1864). 



3. A^. lomentosa, Serville, Hist. Nat. Ins. Orth. p. 86 (iSBg) (Surinam, Brazil). 



?A'. latipeimis, Burmeister, Handb. Ent. Vol. 2, p. 5o2 (i838). 



4. N. bohlsii, Giglio-Tos, Boll. Mus. Zool. Univ. Torino, Vol. 12, n. 3o2, p. 7 (1897) (Paraguay). 



5. N. intermedia, Saussure, Mem. Soc. Sc. Phys. Nat. Geneve, Vol. 23, p. io5 (1873) (Brazil). 



6. A', humeralis. Dohrn, Ent. Zeit. Stettin, Vol 49, p. 129 (1888) (Upper Amazons). 



7. N. tenebrosa, Walker, Cat. Blatt. Brit. Mus. p. 147 (1868) (Demerara). 



8. N. confusa, Giglio-Tos, Boll. Mus. Zool. Univ. Torino, Vol. 12, n. 3o2, p. 7 (1897) (Paraguay). 



9. A^. borcllii, Giglio-Tos, ibidem, p. 8 (1897) (Bolivia). 



10. N . glabra, Giglio-Tos, ibidem, p. 9 (1897) (Bolivia). 



11. N. mexicana, Saussure, Rev. Zool. Vol. 14, p. 227 (1862) (Mexico). 



12. N. asteca, Saussure it Zehntner, Biol. Centr. Amer. Orth. Vol. i, p. 56, pi. 4, f. 34 (1893) (Guatemala). 



— Plate, Fig. 2. 

 i3. N. nocUvaga, Rehn, Trans. Amer. Ent. Soc. Vol. 29, p. 3 (1903) (Nicaragua). 



Doubtful species : 



14. N. lateralis, Eschscholtz, Entomogr. p. 84 (1S22). 



2. Genus EUNYOTIBORA, nov. gen. 



Characters. — Similar to Nyctibora. Burmeister, but the antenna strongly incrassated through- 

 out the greater part of their length. Pronotum transversely elliptical, its posterior border as arcuate as, 

 or more arcuate than, the anterior border. Sides not deflexed. Femora sparsely armed. 



Geographical distribution of species. South America. 



1. E. crassicornis, Burmeister, Handb. Ent. \'ol. 2, p. 5oi (i83S) (Brazil). 



Blatta servillei. Serville, Hist. Nat. Ins. Orth. p. 91 {1839). 

 Paratropes vcstita. Saussure, Rev. Zool. (2), Vol. 16, p. 3oS (1864). 



2. E. omissa, Brancsik, Jahresb. Ver. Trencsin. Comit. Vol. 24, p. 186, pi. 3, f. i (1901) (Argentine). 



3. E. bicolor, Shelford, Ann. Mag. Nat. Hist. (7), Vol. 19, p. 36 (1907) (Peru). 



4. E. nigrocincta, Shelford, ibidem, p. 37 (1907) (Colombia). — Plate, Fig. I. 



