102 



CATALOGUE OF ORTIIOPTEROUS INSECTS. 



to the hind margin ; the costal area is brown, with grey 

 clouds and spots. The abdomen is long, narrow, cylin- 

 drical, and unarmed ; the three terminal segments are 

 short (equal to the fifth in length) ; the ninth having its 

 hinder lateral angles deflexed and acute, with the apex sub- 

 truncate, the angles of the truncation produced into two 

 very small points, having the short anal styles, which are 

 obtuse and rounded at the tips, beneath them ; the centre 

 is also slightly porrected and minutely furcate. The legs 

 are long, slender, and compressed ; the four posterior 

 femora with two small spines on the underside near the 

 tips ; and the basal joint of the anterior tarsi is elevated on 

 its upper side into a large rounded leaflet. The operculum 

 is simple, navicular, and extends to the extremity of the 

 abdomen. 



A second specimen in the National Collection is rather 

 smaller than the one described above, with the costal area 

 of the wings more strongly marked with rounded luteous 

 spots, and the hind portion of the wings pale fulvous with 

 dark veins. 



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

 The extremity of the body seen sideways. 



9. (261.) Lopaphus Gorgus, Westw. 

 Plate XI. fig. 4, female. 



Pallide olivaceo-fuscus, opacus ; abdomine fusco ; capite 

 et thorace granulatis ; tegminibus oblongo-ovalibus ; alis 

 mediocribus, areae costalis basi fusco maculata, medio stra- 

 minea, apice castaneo-rufo, area postica chalybea maculis 

 numerosis albis ; antennis brevioribus, 22-articulatis ; pedi- 

 bus longis, femoribus anticis acute serratis, intermediis 

 lobo magno membranaceo ante medium marginis superi 

 cum duabus alteris minoribus in medio et prope apicem 

 positis, posticis spinulosis loboque parvo ante medium 

 marginis superi instructis (foem.). 



Long. corp. unc. 3| ; cap. lin. 3£; anten. lin. 14 ; proth. 

 lin. 3 j mesoth. lin. 10; metath. lin. 4 ; abdom. lin. 18 + 

 lin. 7=lin. 25; tegm. lin. 10£; alar, expans. lin. 29. 



Hab. Richmond River, Australia. B.M. 



I am only acquainted with females of this fine species. 

 The head is oval, granulated, with three small ocelliform 

 tubercles in a triangle between the eyes. The antennae are 

 as long as the pro- and mesothorax, 22-jointed, the basal 

 joint large. The pro- and mesothorax are finely granu- 

 lated ; the latter wider than the former, with the sides 

 nearly parallel. The abdomen is widened from the base to 

 the fourth and fifth segments, which have a longitudinal 

 raised space in the middle of the hind margin terminating 



in a small membranous lobe ; the seventh segment is much 

 narrowed, forming with the two following segments an 

 oblong-ovate mass. The operculum is very wide, and ex- 

 tends slightly beyond the extremity of the abdomen. The 

 tegmina are elongate-ovate, with the ordinary carina near 

 the base strongly marked. The wings are rather short, 

 extending to about the hind margin of the third abdominal 

 segment ; the costal area is brown at the base, forming ill- 

 defined dark spots towards the middle of the area, which 

 is pale straw-coloured, the apical portion being rich chest- 

 nut-red ; the hinder area is steel-blue, with numerous white 

 spots, one of larger size than the rest near the middle of its 

 anterior portion. The legs are long ; the fore femora 

 strongly serrated along the upper edge ; the tibia? with 

 numerous minute spines ; the middle femora with a large 

 foliaceous lobe, pointed at the tip, at about one-third of the 

 length from the base of the upper edge, with two small 

 aeute lobes between it and the apex ; the hind femora with 

 several small spines and a larger lobe before the middle ; the 

 four hind tibiae with a small lobe on the outer edge near 

 the base, and several small spines on each of the edges. 



Plate XI. Fig. 4. The female, of the natural size. 4 a. The 

 terminal segments of the abdomen seen sidewavs. 



Genus 24. XERODERUS. 



Xeroderus, G. R. Gray, Burmeister (o. c. p. 582, note). 

 Xeroderus (A.), Be Haan, Orth. Orient, p. 116. 



Body elongate, rugose, with small oval tegmina and large 

 wings in both sexes. Abdomen more or less lobed. Head 

 small, square, flat. Antennae of moderate length. Ocelli 

 three in a triangle between the eyes. Prothorax small. 

 Mesothorax about twice the length of the prothorax, rugose, 

 dilated in the female. Tegmina oval, rather longer than 

 the metathorax. Wings very large, as long as the abdo- 

 men in both sexes. Abdomen long, narrow in the male, 

 wider in the female, gradually attenuated, with lateral tri- 

 angular dilated membranous lobes, most distinct in the 

 female. Three terminal segments in both sexes of uniform 

 length with the preceding joints, slightly dilated in the 

 male, with the last segment furcate in the male, simple in 

 the female, the ovipositor not extending beyond the extre- 

 mity of the abdomen. Legs of moderate length, slender ; 

 femora serrated. 



1. (262.) Xeroderus Kirbii. 

 Plate XXXI. fig. 6, male ; fig. 7, female. 

 Cinereus ; thorace depresso ; mesouoto latiori, spinoso ; 

 tegminibus ovalibus areaque costali nigro reticulatis, basi 



