36 RECORDS OP THE AUSTRALIAN MTTSEUM. 



Genus Tropidoderus, G. Gray. 



Tropidoderus decipiens, sp. nov. 



(Plate X., Figs. 1, 2, 3 and 4.) 



? Measurements (in millimeters) : Length from base of an- 

 tennae to tip of abdomen, excluding ovipositor and anal styles, 

 130-5 ; expanse of wings, 172 ; length of head, 7-6 ; antennte, 

 24*4 ; pro-notum, 6-7 ; meso-notum, 14'3 ; meta-notum, 9*2 ; 

 abdomen, 90'6 ; anal styles, G-5 ; ovipositor, 27*4 ; anterior 

 femora, 32*5; median femora, 23-8; hind femora, 28-5; tegmina, 

 43-6; greatest width of abdomen, 13-5; anterior femora, 3-2; 

 median femora, 6*8 ; anterior femora, 8'2 ; tegmina, 18"3 ; wing, 

 63-1. 



Head, antennae, legs, ovipositor and anal styles, green. 



Pro-notum arched, moderately granulated above and below ; 

 meso- and meta-notum keeled in the median line and laterally ; 

 the median keel of the former only finely serrated, but the lateral 

 keels of both more strongly so ; these two latter are also more 

 profusely granulated on superior and inferior surfaces than the 

 pro-notum ; meta-notum purple laterally ; at the base of the latter 

 there is also a median patch suffused with the same colour. 



Abdomen keeled above and laterally ; superior surface and 

 sides of a pinkish colour with the exception of the lateral keels, 

 which are green ; inferior surface green, profusely granulated. 

 Ovipositor boat-shaped, bright green, extending slightly beyond 

 tip of abdomen, strongly but finely granulated, keeled below. 



Tegmina elongate, ovate, keeled ; the one on the right bright 

 green above and below, that on the left bright green on the outer 

 half of the superior surface, including the base and tip of the 

 inner portion, the remainder creamy white. 



Wings. — Costal area of each wing purple at the base, from 

 thence to about one-third the length, there is a pale green patch 

 sharply rounded off at its ultimate extremity ; the remainder 

 of the costal area above and below, bright green ; the hyaline 

 membrane nearly colourless, or with a slight greenish hue ; veins 

 palish pea-green. 



Legs simple ; median pair hollowed out at base to receive the 

 head ; the femora of median and hind pairs flattened out to re- 

 semble foliage, their edges strongly serrated ; meta-tarsi and tarsi 

 brownish. 



Hah. Gordon. 



This beautiful insect, which so strongly similates the foliage of 

 plants, is a typical example of Australian Phasmidse. It will be 

 noticed in reading the above detailed description that there is a 

 striking difference in the colouration of the tegmina, the one on 



