28 



CATALOGUE OF ORTHOPTEROUS INSECTS. 



This species is at once distinguished by the remarkable 

 digitated structure of the two styles at the extremity of the 

 abdomen. I possess a specimen, presented to me by Mr. 

 Coffin, the proportions of which are as follow : — Head, 

 lin. 1£; proth. lin. 1 ; mesoth. lin. 6i ; metath. lin. 5| ; 

 abdom. lin. 11 + lin. 4 = lin. 15. The female insect re- 

 ceived in company with the male seems to me to agree in 

 almost every respect with the female of B. striata of Bur- 

 meister. 



24. (76.) Bacteria striata. 

 Femoribus omnibus muticis. 



Mas. Gracilis, laevis ; cercis analibus elongatis, aduncis. 



Fcem. Brevior, crassior, opaca ; abdomine supra lineis 



elevatis striato; cercis analibus lanceolatis, rectis, corn- 



Long, corp. maris 2" 11'" ; fcem. 2" 6'". 

 Bacteria striata, Burmeister, Handb. d. Ent. ii. p. 567- 



Hab. In Mexico. 



B.M. 



25. (77.) Bacteria gracilis. 



Femoribus muticis tibiisque fasciatis, maris cercis ana- 

 libus brevibus capitatis. 



Long. corp. 2" 10'". 

 Bacteria gracilis, Burmeister, Handb. d. Ent.u. p. 567. 



Hab. La Guayra. 



26. (78.) Bacteria Faunus, Westw. 

 Unicolor viridis, femoribus 4 posticis subtus ante api- 

 cem 1-2-spinatis. 

 Long. corp. 2" 10'". 



Bacteria viridis, Burmeister, Handb. d. Ent. ii. p. 568 (nee 

 Bact. viridis, G.R. Gray, Syn. Phasm.). 

 Hub. In America meridionali. 



27. (79.) Bacteria strigiventris, Westw. 

 Plate XXIV. fig. 6, female. 



Viridis ; capite parvo, oblongo ; mesothorace et meta- 

 thorace sensim latioribus ; abdomine e basi sensim attenu- 

 ate, hoc lineis undecim gracilibus elevatis ; operculo apice 

 bifido ; stylis analibus brevibus, obtusis ; pedibus brevibus, 

 simplicibus (foem.). 



Long. corp. lin. 23 ; capit. lin. Ii ; proth. lin. {• ; me- 

 soth. lin. 5£; metath. lin. 3 ; abdom. lin. 8\ + lin. 3 = 

 lin. 11.L. 



Hab. In Columbia (M. Gaudichaud). In Mus. Saunders. 



This species is allied to B. striata, Burmeister. It is 

 green, opake and smooth, except the abdomen, which has 

 one central and five slender elevated lines on each side. 

 The head is small and oblong, without spines or tubercles. 

 The antenme are gradually attenuated, and extend back- 

 wards to the middle of the metathorax. The thoracic seg- 

 ments are gradually dilated from the head to the base of 

 the abdomen, whilst the latter is gradually attenuated to 

 its extremity. The metathorax is rather more than half 

 the length of the mesothorax. The operculum of the 

 abdomen extends slightly beyond the extremity of the 

 body ; it is deeply bifid at the tip, and but little swollen in 

 the middle ; the anal styles are short, exserted at the tip of 

 the body, and incurved. The legs are short and simple, the 

 fore femora moderately widened along the upper angle, and 

 all the femora are quite simple. The basal joint of the 

 tarsi is about as long as the three following joints in all 

 the feet. 



Plate XXIV. Fig. 6. The female, of the natural size. 6 a. The 

 terminal segments of the body seen laterally. 6 b. The 

 extremity of the operculum. 



28. (80.) Bacteria turgida, Westw. 

 Plate VIII. fig. 4, male ; fig. 9, female. 



Gracilis, cylindrica ; corpore maris lsevi, filiformi, seg- 

 ments analibus dilatatis ; fcemiuse capite bicorni, meso- 

 et metatborace subasperis ; abdominis segmentis tribus 

 apicalibus brevibus, ultimo apice trifido, femoribus inter- 

 mediis subtus prope apicem subspinosis. 



Long. corp. maris lin. 37 ; capit. lin. 1| ; anten. lin. 18 ; 

 proth. lin. 1 ; mesoth. lin. 9 ; metath. lin. 7 ; abdom. lin. 14 

 -I- lin. 3= lin. 17. 



Long. corp. fcem. unc. 4|; capit. lin. 2-i- ; proth. lin. 2-i; 

 mesoth. lin. 13 ; metath. lin. 9 ; abdom. lin. 26 + lin. 4 = 

 lin. 30. 



Hab. In Venezuela. B.M. 



The materials for this species in the British Museum Col- 

 lection are mutilated and unsa'tisfactory, consisting of the 

 bodies of a male and female insect from Venezuela stuck 

 upon one pin, whence we may be led to infer that they had 

 been captured in coitu. 



The male is very slender, filiform, destitute of spines or 

 tubercles. It is obscure ferruginous, with the thorax green 

 at the sides. The antennae are slender, extending rather 

 beyond the middle of the metathorax. The three terminal 

 segments of the abdomen are considerably dilated, the ninth 

 having the hinder lateral angles rounded and the hind 



