Singularly formed Orthopterous Insects. 143 



Anosto'stoma. 

 Antennce much longer than the body, multi-articulate, 

 setaceous. Labrum large, crescent-shaped. Head very large, 

 globose above, somewhat elevated into a ridge between the 

 antennae, with three ocelli at the base ; the eye prominent, and 

 somewhat crescent-shaped. Mandibles long, porrected in 

 some, horizontal, strong, dilated and dentated at the tip. 

 Trophi much exposed. Mentum long, somewhat narrow, 

 but rather dilated near the tip. Labial palpi slender, basal 

 joint short, second shorter than the third, which is much 

 more slender than the others, with the tip membranaceous 

 and dilated. Maxillary palpi very slender, long, with the 

 tip ending in an acute spine; first and second joints equal 

 to one another, the third and fourth also equal, the fifth 

 rather longer than the fourth, with the tip membranaceous 

 and slightly dilated. Prothorax as long as broad, with the 

 margin somewhat rounded. Abdomen long, broad, with short 

 caudal appendages, which are hirsute. Legs long, especially 

 the hind ones ; the tibia of all strong, spinous. Tarsi four- 

 jointed. Apterous in both sexes. 



A. AUSTRALASIA G. JR. 



Gray. {Jig. 16.) Ferrugi- 

 nous ; abdomen variegated 

 with yellow ; legs yellow ; 

 tip of the mandibles black; 

 those of the male porrect ; 

 of the female horizontal. 



The two specimens ex- 

 amined were brought from the interior of Australia, about 

 300 miles up the country. I can give no information about 

 its habits, as no remarks were sent with them. The species 

 is allied to Locusta spinosula and L. pupa ; which form the 

 genus Bradyporus of Latreille. Both are inhabitants of 

 Africa. From the great length of the antennae, and in pos- 

 sessing anal appendages, it 



appears to be allied to the 5^ZIIZZIII^N 



crickets; but, as the insect 

 has four joints in all its tarsi, 

 I have placed it with the 

 locusts. 



In the same subgenus must 

 be placed a species somewhat 

 similarly formed, long since figured by Herbst (Natfreun. 

 Bert. Neue Schriften, vol. iv.), under the name of Locusta 

 monstrosa. (Jig. 17.) This has never been referred to by any 



