CLASS V. INSECT A. 
283 
Srinps 1 . — Hinder tarsi with the first joint nearly equally broad, or 
gradually narrowing from the base to the apex, the second joint ori- 
ginating from the middle of its apex. 
A. Palpi alike. 
Genus 472. PANURGUS. Pam., Sp'mola, Latr Peach. Apis. 
Scopali. Dasypoda. Wig., Fabr. Apis. * a. Kirby. Eriops. 
Plug. 
■Mandibles not dentated : antenna straight in both sexes, and subcla- 
vate : superior wings with two submarginal cells : ocelli disposed in a 
triangle. • 
Sp. 1. Pan. Banksianus. 
Apis Banksiana. Kirby. 
Inhabits . 
B. Palpi unequal; the labial palpi setiform. 
a. Labi um nearly quadrate, transverse, or not much longer than 
broad. Mandibles tridentate at their points. ( Superior wings with 
three submargiiuil cells.') 
Genus 473. CERAT1NA. Latr., Jurine, Spinota, Leach. Aprs. 
Villers, ltossi, Kirby ( ** d. 2 a). Megilla. Fabr., Illig. 
Prosopis. Fabr. Prrnms. King. Claviceba. Walckenaer . 
Lahrvm almost quadrate, perpendicular, entire: antenna-, gradually 
thickening towards their extremities; the scapus not large. 
Sp. 1. Cer. cwrulea. 
Apis cterulea. Fill. Apis cyanea. Kirby. 
Inhabits the flowers of the Ragwort. 
b. J.abrum longer than broad, inclined perpendicularly ; porrect be- 
neath the mandibles; elongate, quadrate. Mandibles strong, por- 
rccted, with the apex bidentatc in some ; trigonate and often multiden- 
tate in others. 
* Labial palpi with the three first joints contiguous ; the fourth in- 
serted under the external apex of the third. 
Genu 9 474. CHELOSTOMA. Latr., Leach. Apis. Linnl, l ill., 
Kirby ( ** c. 2 y). llv lotus. Fabr. Axthrophora. Wig-, 
Fabr. Anthidicm. Pans. Trac.husa. Jurine. 
Mandibles (of the females) arcuated; their apex bidentatc or furcate, 
porrect, internally hairy: maxillary palpi three-jointed. 
The bodies of the inserts composing this genus are very long, 
slender, and cylindric. The belly of the male, near the anus, is con- 
cave, and covered with down, and at its base is a horn or protube- 
rance. When asleep they roll themselves up like an armadillo, the 
born or protuberance fitting into the anal cavity. They nidificate in 
F°sts and rails. The males usually repose in the centre of a flower. 
