312 OETHOPTEKA. 



expanding, the median carina conspicuous and gently arcuate in front of the last transverse sulcus, 

 widely severed by all the sulci, the hind margin truncate. Interspace between the mesosternal lobes 

 a little longer than wide. Hind femora robust, about as long as the abdomen, the latter gently tapering, 

 without a prominent dorsal carina. 



l. Agrcecotettix modestus, sp. n. (Tab. IV. figg. 13, 13 a, $ .) 



General colour brunneo-testaceous varied with dark brown and black. The basal abdominal segments above 

 varied with pale < -shaped markings bordered by black. Hind femora conspicuously banded with fuscous 

 internally, across the upper edge, and externally above the middle, the bands on the external face 

 strongly oblique, above and internally transverse ; apex, except the genicular lobes, which are largely 

 dirty-white, black ; hind tibiae cinereous, heavily conspersed with black on the basal half, apically tinged 

 with purple. Head irregularly conspersed and banded with fuscous ; occiput broadly in the centre and 

 the cheeks back of the eyes banded with piceous. Middle of the disc and sides of the pronotum banded 

 with black ; on the sides below the black bands are two large dark testaceous or fawn-coloured spots, 

 and there are similarly-coloured dashes on the pleura of the meso- and metathorax. Lower outer carina 

 of the hind femora conspicuously dashed with black. Antennae infuscated apically, paler at base. 



Vertex between the eyes slightly wider than the diameter of the basal antennal joint, the sulcature rather 

 profound and broadening anteriorly; the fastigium coarse and depressed; frontal costa broad and 

 prominent above, becoming less so below, sulcate near the ocellus, sparsely punctate above ; lateral or 

 facial carinas prominent, somewhat sinuose ; occiput bulging and slightly ascending. Eyes moderately 

 large and rather prominent, a little longer than the cheeks below them. Pronotum coarsely and sparsely 

 punctate on the front, closely and finely so on the hind lobe. Tegmina lateral, ovate, reaching the hind 

 edge of the first abdominal segment, rather closely and strongly veined. Metapleura strongly bicarinate 

 in advance of the hind coxse. Prosternal spine broad, subquadrate at the base, pyramidal, acuminate, 

 the apex very gently directed to the front. 



Length of body, § , 31 ; of pronotum 6-85, of tegmina 4-5, of hind femora 16 millim. 



Hab. Mexico, Villa Lerdo, Durango (L. Bruner). 



A single female, captured in November. This insect has been placed next to 

 Calotettix on account of the picturing of the femoral and dorsal abdominal carina?, 

 as referred to in the description above and in the synoptic table of the genera 

 (antea, p. 219). 



PARAIDEMONA, Brunner. 



Paraidemona, Brunner, Rev. Syst. Orthopt. p. 145 (1893) (in part.) ; Scudder, Proc. Amer. Acad. 

 Art. Sci. xxxii. no. 9, p. 197 (1897) ; Proc. U.S. Nat. Mus. xx. pp. 10, 41 (1897). 



Paraidemona contains at least a couple of species of small apterous locusts which 

 are distributed over South-western Texas and North-eastern Mexico. They frequent 

 more or less arid regions. 



l. Paraidemona punctata, sun. 



Pezotettix punctatus, Stal, Bihang till K. S ven.sk. Vet.-Akad. Handl. v. no. 9, p. 11 (1878) \ 

 Pezotettix nudus, Scudd. Proc. Bost. Soc. Nat. Hist. xx. p. 77 (1879) 2 ; Cent. Orthopt. p. 66 



(1879) 3 ; Bruner, Rep. U.S. Ent. Comm. iii. p. 59 (1883) \ 

 Paraidemona punctata, Brunner, Rev. Syst. Orthopt. p. 145 (1893) 5 ; Scudd. Proc. U.S.Nat. 



Mus. xx. p. 42, t. 3. figg. 8, 9 (1897) 6 . 



