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 Husmr, 
whose observations have been confirmed by LATREILLE (Mémoires sur 
divers sujets, Paris, 8vo, 1819, pp. 236—240), and by Hanuart (Wissen- 
schaftlicher Zeitschr. von Lehrern der Baseler Hochschule, cited by OKEN, 
Allg. Naturgesh. V. 2. 8. 943—945). 
Phalanx II. Solitaria s. Mutillarie. Males and females alone. 
Males winged. Females apterous, without ocelli, furnished with 
sting. Antenne filiform, with first and third joints elongate. 
Burmeister and Westwoop place these insects in the neighbour- 
hood of Scolia in the following division. 
Dorylus Fasr., LATR. Antenne 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., DuméR. Consid. gén. s. l. 
Ins. Pl. 32, fig. 1 (below) ; Cuv. R. Ani. éd. ill., Ins. Pl. 118, fig. 1 (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 dnictus SHUCKARD). 
Labidus JuRINE, LAtr. 
All the species American. According to SHUCKARD, genus Typhlopone 
Westw. should belong here and contain the females of the Labidi, on 
which point see the opinion of WEstwoopD, 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. 
315—396. 
Mutilla L. (exclusive of Mut. helvola.) Antennee inserted above 
the anterior margin of the elypeus. Head transverse, broad. Abdo- 
men oval or conical. Feet of females strong, with tibie spinous 
ciliated. 
A. Mutilla Later. (spec. of Mutilla L.) Thorax undivided. 
Sp. Mutilla rufipes Fasr., Mutilla sellata 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 ephippium Fasr., Cuv. R. Ani. éd. ill., Ins. Pl. 118, fig. 3. 
Add sub-genus: Apterogyna Larr., Daum. Antenne long, in 
males almost of the length of body. Thorax undivided. ‘Two 
anterior segments of abdomen narrower, discrete. 
Sp. Apterogyna Olivierii, Dictionn. class. d’Hist. nat. Tab. 71, fig. 9, from 
Arabia and Egypt &c. 
Bd 
