418 
Obs€)'vations on the various Insects 
is many years since, and I trust that no one who discusses agri- 
cultural subjects in future will be thus compelled to confess his 
ignorance. It only remains now to describe the Colliers. 
They belong to the Order Homoptera, the Family 
Aphides, and the Genus Aphis, and, from the species living 
upon the common bean called Vicia Faha, it has been named by 
Scopoli 
5. A. Fabse. Female apterous, ovate, sooty black ; anteunaj shorter 
than the body, tawny, except at the extremity, setaceous, indistinctly 
"J-jointed, 2 basal joints minute, 3 following elongated, terminal one 
slender : rostrum bent under the breast in repose, ratl)cr long and 
stoutish : eyes prominent: abdomen with bluish white spots down 
each side of the segments ; tubes short. Six legs stoutish, ochreous, 
shining ; thighs more or less pitchy ; shanks pubescent, pitchy at the 
apex, hinder the longest and curved ; feet short, black, and biarticulate, 
terminated by minute claws (fig. 20, f. 21 the same magnified). Obs. 
In some examples the head is ochreous and the legs entirely of the same 
colour, whilst a few are of a rusty colour. Males ? winged and black : 
head trigonate; eyes prominent; antennae as long as the body, slender, 
setaceous, tawny at the base, distinctly 7-jointed, 2 basal joints very 
short, 3rd the longest, 6th much shorter than the 5th and Tth : thorax 
shining, deeply channelled, forming four convex lobes including the 
broad scutellum ; the collar is very short, but forming lateral lobes : 
abdomen oval, not broader than the thorax ; the tubes are longer and 
slenderer than in the apterous sex : 4 wings deflexed in repose, iri- 
descent but slightly tinged with brown ; superior very ample, thrice as 
long as the body, the nervures and stigma are pale brown, the apical 
cell ovate-conic, with a double furcate one below it ; inferior wings 
small : legs pubescent, ochreous, rather long and slender, especially the 
hinder pair ; thighs more or less pitchy, as well as the extremities of the 
tibiae; the feet arc black, short and slender, having a minute basal joint 
and 2 little claws at the apex (fig. 22, highly magnified). 
Bruchid^. — The Pea and Bean Beetles. 
Peas and beans are often inoculated in the field by a group of 
beedes, called improperly Bugs " by the farmers ; and this sub- 
jects them, like the cereal crops, to great injury and waste after 
they are stacked or housed. From their destructive nibbling pro- 
pensities, these beetles have received the appellation of Bruchus. 
It is singular that they should be almost confined to leguminous 
or podd^earing plants, infesting various kinds of pulse and many 
foreign seeds which are of great value to the inhabitants either 
for home consumption or as articles of commerce ; amongst them 
are recorded acacias, mimosas, and some palm fruits.* A legu- 
jninous seed named Gram, and much used wlien boiled as food 
* Latreille, Hist. Nat,, vol. xi. p. 401. 
