366 CLASS viii. 



at an earlier period. These ant-nests are thus inhabited by two different 

 species, of which one alone works. They are the Amazon-ants of HUBEB, 

 whose observations have been confirmed by LATREILLE (Mernoires sur 

 divers sujets, Paris, 8vo, 1819, pp. 236 240), and by HANHART (Wissen- 

 schaftlicher Zeitechr. von Lehrem der Baseler Hoclischule, cited by OKEN, 

 Allg. NaturgesJi. v. 2. s. 943 945). 



Phalanx II. Solitaria s. Mutillarice. Males and females alone. 

 Males winged. Females apterous, without ocelli, furnished with 

 sting. Antennge filiform, with first and third joints elongate. 



BURMEISTER and WESTWOOD place these insects in the neighbour- 

 hood of Scolia in the following division. 



Dorylus FABR., LATE. Antennas short, inserted near the mouth, 

 above the forcipate mandibles. Head small. Abdomen elongate, 

 cylindrical. Body, especially thorax, downy. 



Insects of which the males alone are known, perhaps parasitic in ants' 

 nests. Sp. Dorylus helvolus, Mutilla helvola L., DUMER. Consid. gn. s. I. 

 Ins. PI. 32, fig. i (below) ; Cuv. . Ani. 'ed. ill, Ins. PI. 118, fig. i (the 

 feet are here badly depicted) ; habit. Cape of Good Hope. All the species 

 are exotic, from the eastern hemisphere, particularly Africa. (There is in 

 the Leyden Museum a species from Java and from Siberia ?) 



(Add sub-genera : Rhogmus and JEnictus SHUCKARD). 

 Labidus JUEINE, LATR. 



All the species American. According to SHUCKARD, genus Typlilopone 

 WESTW. should belong here and contain the females of the Labidi, on 

 which point see the opinion of WESTWOOD, Ann. of Nat. Hist. vi. 



But on Dorylus comp. by all means SHUCKARD, Monograph of the Dory- 

 lidea, Annals of Nat. History, v. 1840, pp. 188 201, pp. 258 272, pp. 

 315396. 



Mutilla L. (exclusive of Mut. helvola.} Antennas inserted above 

 the anterior margin of the clypeus. Head transverse, broad. Abdo- 

 men oval or conical. Feet of females strong, with tibiae spinous 

 ciliated. 



A. Mutilla LATR. (spec, of Mutilla L.) Thorax undivided. 



Sp. Mutilla rufipes FABR., Mutilla scllata PANZER, 6 or 7 millim. in size, 

 thorax and feet red-brown, abdomen black with a white spot on the middle 

 and a transverse band of white hairs at the posterior extremity. The male 

 is Mutilla epliippium FABR., Cuv. R. Ani. 3d. ill., Ins. PL 118, fig. 3. 



Add sub-genus : Apterogyna LATR., DALM. Antennae long, in 

 males almost of the length -of body. Thorax undivided. Two 

 anterior segments of abdomen narrower, discrete. 



Sp. Apterogyna Olivier ii, Dictionn. class. d'Hist. not. Tab. 71, fig. 9, from 

 Arabia and Egypt &c. 



