160 



CATALOGUE OF ORTHOPTEROUS INSECTS. 



and tibiffi compressed and slightly dilated along their whole 

 length ; tarsi short, with the basal joint short ; hind legs 

 not more than two-thirds the length of the abdomen, which 

 is wider than the front of the body, subdepressed, glossy, 

 liiteous brown ; each of the five basal segments with a broad 

 black transverse fascia: the terminal segments are not 

 narrowed ; they are marked with a dark line on each side ; 

 the last joint slightly emarginate, with the anal styles short, 

 but porrected ; the operculum flat *, and does not extend 

 to the extremity of the eighth dorsal segment, and is ac- 

 companied by two flattened and slightly curved pointed 

 appendages. 



Plate XIV. Fig. 1. The female, of the natural size. 1 a. The 

 front of the body seen laterally. 1 b. The three terminal 

 segments of the body seen from beneath. 



5. (420.) Metriotes obscura. 



Obscure fusca ; mesonoto medio abdomineque supra ni- 

 gris ; capite postice elevato, tuberculato ; pronoto tubercu- 

 lato ; mesothorace longitudine capitis cum prothorace, la- 

 teribus compressis, dorso tuberculato ; tegminibus ovalibus, 

 brunneis, venis nigris, mesothorace paulo longioribus, basin 

 versus carina elevata, cum linca obliqua albida ex apice 

 partis elevatfe ad marginem internum extensa ; alis longi- 

 tudine abdominis, area costali brunnea, basin versus nigro 

 maculata, guttisque nonnullis ejusdem coloris in disco no- 

 tata ; area postica ad basin et marginem apicalem fusco 

 tiuctis, disco hyalino-albis venis fusco late tinctis ; pedibus 

 gracilibus, carinatis, brunneis, nigro submaculatis ; antennis 

 brunneis. 



Long. corp. foeni. unc. 3, lin. 7. 



Phasma obscmum, Guerin-MeneviUe in Mag. Zool. 1838, 

 Ills. Orth. pi. 235 ; Vorjage de la Favorite, p. 72. 

 De Haan, Orth. Orient, p. 124. 



Hab. Bahia, in Brasilia. 



6. (421.) Metriotes Dictys, r^M^ic. 

 Plate XV. fig. 7. 

 Tota fulvo-fusca; capite oblongo, vertice spina parva 

 erecta armato ; pro- et mesothorace incrmibus ; tegminibus 

 ovalibus, singulo spina parva erecta prope basin armato ; 

 alis pallida fuscis, area costaU paulo obscuriore, vena majori 

 bifida ; pedibus brevibus, inermibus, femoribus anticis com- 

 pressis. 



Long. corp. unc. 2J ; cap. lin. 2^ ; anten. unc. 2 ; proth. 



* The shortness of this organ might be perhaps considered to indi- 

 cate it as the three terminal segments of the male ; hut it is not at 

 all swollen, nor marked with traces of articulation. 



hn. 2 ; mesoth. lin. 4 ; metath. lin. 5 ; abdom. lin. 14 -f- 

 lin. 3 = lin. 17 ; tegm. hn. C ; alar, expans. unc. 2|. 

 Ilab. ? Columbia? In IMus. W. W. Saunders. 



I have seen but a single specimen of the female of this 

 species, and am therefore unable to determine whether the 

 peculiar circumstance of the head being armed on the right 

 side of the crown with a single spine be a permanent spe- 

 cific character or not. The general colour is of a reddish 

 or fulvous brown, opake, and with the head, pro- and me- 

 sothorax very slightly rugose. The head is oblong, con- 

 vex, marked on the crown with several dusky lines, and 

 armed also on the right side of the centre with a small 

 erect spine. The antennae are long, and slightly thickened 

 towards the base. The pro- and mesothorax are convex 

 and unarmed, the latter scarcely twice the length of the 

 former. The tegmina are oval, with the central carina well 

 defined towards the base, and armed with a small acute 

 erect spine. The wings are of moderate width, very pale 

 brown with a reddish tinge ; the costa pale brown, with 

 the chief vein furcate. The legs short and simple ; the 

 fore femora dilated ; the anterior tarsi with the basal joint 

 as long as the three following imited. The abdomen is 

 convex ; the three terminal segments narrowed and short- 

 ened, the last rounded at the tip, with the anal styles ex- 

 posed at the extremity. The operculum is short and flat, 

 extending to about the middle of the eighth dorsal segment, 

 the inner appendages forming two rows of flattened plates. 



Plate XV. Fif;. 7. The female, of the natural size. 7 a. The 

 head and prothorax seen sideways. 7 b. The terminal seg- 

 ments of the abdomen seen from beneath. 



7. (422.) Metriotes Myrsilus, Westw. 

 Plate XV. fig. 6, female. 



Olivaceo-fusca, opaca, tenue granulata, granulis albis (in 

 verticem longitndinaliter dispositis) ; mesothorace supra 

 spinis erectis recur\is armato ; tegminibus ovalibus, nigro 

 venosis ; alis sub-brevioribus, latis, area costali opaca et 

 obscura, ante apicem leviter albo irrorata, postica snbpellu- 

 cida parum fulvescenti, venis longitudinahbus luteo-fulvis ; 

 metanoto albido ; pedibus brevibus, inermibus, femoribus 

 anticis latioribus (foem.). 



Long. corp. fcem. unc. 2^ ; cap. lin. 3 ; proth. hn. 2| ; 

 mesoth. lin. 4^ ; metath. lin. 5 ; abdom. lin. 13 -f lin. 3i 

 =hn. 16| ; tegm. sing. lin. 8 ; alar, expans. unc. 3. 



Hab. Columbia (U. Gaudichaud) . In Mus. W.W. Saun- 

 ders. 



This species is closely allied to M. Diodes, especially in 

 the structure of the terminal segments of the abdomen be- 

 neath ; but it is broader and shorter, and the wings exhibit 



