REVIEWS AND EXCHANGES 
195 
Section of Subterranean Wasp Nest (after Janet), with 
(a) nest of ant {Lasius Jfazms) above it ; /, larva? of fly placed 
in ground beneath the nest. 
Under Surface of Beetle, 
Harpalus. — A, antenna ; B, man- 
dible : C, labrum ; D, ligula ; E, 
paraglossa ; F, labial palp. ; G, 
inner lobe of maxilla; H, outer 
lobe ; I, maxillary palp. ; K, men- 
tum; L, gena ; M, gula; N, buccal 
fissure ; V, plates of ventral seg- 
ments; 1, prosternum; 2, pro- 
sternal episternum ; 3, prosternal 
epimeron 4, coxal cavities ; 5, pro- 
notum ; 6, mesostemum ; 7, meso- 
sternal episternum; 8, mesosternal 
epimeron ; g, metastemum ; 10, ante- 
coxal piece ; ii, metasternal epi- 
sternum; 12, metastemal epimeron; 
13, epipleuron; 14, ambulatory seta? ; 
15, trochanter; 16, posterior coxa; 
17, femur; 18, tibia; 19, tarsus. 
