Insects from Australia and Neiv Britain. 75 



The insect {B. tenuis^ Hope, MS.) figured by Westwood, 

 on pi. xxvii. fig. 2 of his monograph, as the male of B. 

 coenosa is possibly the opposite sex of this species, slight in- 

 dications of lobes at the ends of the segments of the abdomen 

 being to be seen in Westwood's figure. 



2. PMhalosoma novce-britannice, n. sp. 



? . Closely allied to P. pytlionius and to P. apollonius, both 

 from the Fiji Islands. It has the spiny thorax of the latter, 

 and the abdomen of the former. It differs from P. pythonius 

 not only in its spiny thorax and shorter antennse, but also in 

 the form of the fifth, sixth, and seventh dorsal segments of the 

 abdomen, which gradually widen from the base to the apex, so 

 that the abdomen has in this part conspicuously serrated mar- 

 gins ; and from P. apolhnius not only in the form of the 

 abdomen, but apparently also in its almost completely trique- 

 trous four posterior thighs and tibige, all of which have a row 

 of sharp spines along the middle of the under surface, and in 

 having the first joint of all the tarsi longer and slenderer. 

 The mesosternum has two parallel rows of spines along the 

 middle, of which no mention is made by Westwood in his 

 description of the latter. The fore legs are unfortunately 

 wanting. 



Total length 8'5 inches ; antennae 24*5 lines ; head 6'5 lines ; 

 prothorax 4*5 lines; mesothorax 20*5 lines; metathorax 12"5 

 lines ; abdomen 4 inches 3 lines + 9 lines -f operculum 7 lines 

 = 5 inches 7 lines; intermediate femur 20, tibia 20, tarsus 

 9*75 lines ; posterior femur 22, tibia 24, tarsus 11 lines. 



Hob. New Britain {G. French). A single specimen, pre- 

 served in alcohol. 



3. Pliyllium novce-britannicey n. sp. 



? . Closely allied to P. lohiventre from the Fiji Islands, 

 which it resembles in the form and ornamentation of the me- 

 sonotum, in the granulation of the head, legs, and margins of 

 the segments of the body, in the structure of the legs and teg- 

 mina, and, finally, in size, but from which it differs in the 

 rudimentary condition of the lobe on the inner side of the fore 

 tibiae, and, conspicuously, in the form of the abdomen ; this 

 widens gradually to the middle of the third segment, whence 

 its sides converge slightly and gradually to the middle of the 

 sixth segment, which curves inwards to the base of the 

 seventh, this with the last two forming a triangular mass with 

 slightly hollow sides. 



Total length 2 inches 4*5 lines ; head 2*75 lines ; prothorax 



