PHASMID.E. BACTERIA. 



27 



20. (72.) Bacteria .Etolus, Westw. 

 Plate XXII. fig. 3. 



Valde elongata, gracilis, granulosa ; capite inter oculos 

 bifoliato ; antennis fere longitudine pedum anticorum ; ab- 

 dominis segmento lmo et 4to in medio marginis postici 

 tuberculo foliaceo, Ctoque utrinque foliolo acuminato ; 

 operculo longissimo ; femoribus et tibiis pedum 4 posti- 

 corum parce foliatis articuloque basali tarsorum omnium 

 supra angulato (fcem.). 



Long. corp. cum operc. unc. 7| ; anten. unc. 2f ; proth. 

 lin.3; mesoth. lin. 20 ; metath. lin. 12 ; abdom. lin. 35 + 

 lin. 6 + operc. lin. 9i=lin. 50-J-. 



Hab. In Mexico (#. Coffin). In Mus. Westwood. 



Entirely of a pale ashy colour varied with brown ; very 

 long and slender, the thoracic and basal segments of the 

 abdomen covered with small granules. The head with two 

 short, rough, conical leaflets between the eyes. The an- 

 tennae are very slender and nearly as long as the fore legs. 

 The meso- and metathorax are but slightly widened at the 

 base of the legs. The abdomen has the five basal joints 

 long and of equal width ; the sixth and following are gra- 

 dually attenuated to the tip, which is slightly bifid, exposing 

 the two caudal styles at the sides ; the basal and fourth 

 segments are furnished at the middle of the hind margins 

 with a dilated foliaceous lobe, and the sixth segment has its 

 sides furnished at their extremities with two lobes rounded 

 on the outer edge, and with the hinder angles porrected 

 backwards. The operculum is very long and slender, ex- 

 tending far beyond the extremity of the abdomen ; the fore 

 legs are moderately long and simple ; the basal joint of all 

 the tarsi is angulated above ; the four hind legs are mode- 

 rately long ; the femora curved, furnished near the base 

 beneath with a triple spine, and with a single one close to 

 the extremity ; the tibiae have a lobe near the base, and 

 another towards the extremity on the outer edge. 



Obs. The left hind leg is smaller than the opposite one 

 on the right side, and destitute of lobes, having evidently 

 been reproduced. 



Plate XXII. Fig. 3. The female, of the natural size. 3 a. The 

 terminal segments of the abdomen seen sideways. 



21. (73.) Bacteria Clinteria, Westw. 

 Plate XXV. fig. 9. 

 Tota laevis, viridis, elongata, subgracilis, subcylindrica ; 

 capite prothorace parum majori, antice bi-impresso ; oper- 

 culo foeminae ultra apicem abdominis longe extenso ; pe- 

 dibus gracilibus, femoribus duobus anticis supra serratis, 

 intermediis prope basin supra bispinosis. 



Long. corp. cum operc. unc. 6| ; capit. lin. 3 ; proth. 

 lin. 2\; mesoth. lin. 13 ; metath. lin. 10-f- ; abdom. lin. 30 

 4-lin. 6 ; opercul. lin. 9=lin. 45. 



Hab. In America meridionali. B.M. 



A female of this species in the National Collection is 

 the only representative of it which I have seen. It is very 

 long and slender, entirely smooth, and of a green colour. 

 The head is somewhat larger than the prothorax, and has 

 two small impressions in front of the crown ; the antennae 

 are broken off. The meso- and metathorax are cylindrical, 

 and only slightly dilated at the insertion of the legs ; the 

 abdomen is of nearly uniform width with the thoracic 

 segments, and the six basal segments are of nearly equal 

 length ; the seventh is shorter and more dilated, the eighth 

 very short, the ninth rather longer and more attenuated, 

 and slightly carinated with a minute semicircular terminal 

 appendage, exposing at its extremity two minute conical 

 points, and at its sides the short obtuse anal styles. The 

 operculum is very long (about equal in length to the three 

 basal segments of the abdomen), and extends far beyond 

 the extremity of the body ; it is swollen beneath the eighth 

 and ninth dorsal segments. The legs are moderately long 

 and slender, the anterior femora serrated along the upper 

 edge, the basal joint of the tarsi longer than the remaining 

 joints united ; the middle femora are armed near the base 

 on the upper edge with two spines ; the hind legs are 

 simple. 



Plate XXV. Fig. 9. The female, of the natural size. 9 a. The 

 extremity of the ninth dorsal segment of the abdomen. 

 96. The extremity of the abdomen seen sideways. 



22. (74.) Bacteria Dryas, Westw. 



Femoribus tibiisque fasciatis ; posticis 4 subtus ante 

 apicem multispinosis, spinis inaequalibus, minutis. 

 Long. corp. maris 3" ; foem. 5'". 



Bacteria spinosa, Burmeister, Handb. d. Ent. ii. p. 567. 

 De Haan, Orth. Orient, p. 134 (nee B. spinosa, G. R. 

 Gray, Syn. Phastn.). 

 Hab. In Insula " St. Domingo." 



23. (75.) Bacteria tridens. 

 Femoribus 4 posticis subtus ante apicem 4-5-spinatis. 

 Mas. Minus gracilis, laevis ; cercis analibus erectis apice 

 3-fidis, obtusis. 



Long. corp. 2" 2'". 



Bacteria tridens, Burmeister, Handb. d. Ent. ii. p. 567. 

 Be Haan, Orth. Orient, p. 134. 



Hab. In Mexico, Oaxaca. B.M. 



e 2 



