United States or Democratic Republic of the Congo ? Vote for the TOP Country of the Week !
The Tachinae seem to declare as much: they are grey or greyish, of a colour as undecided as the dusty soil on which they cower while waiting for the arrival of the huntress laden with her capture. But they dissemble in vain: the Bembex, the Philanthus and the others see them from above, before touching ground; they recognize them perfectly at a distance, despite their grey costume.
The pile of honey laboriously gathered by the mother will not even be broken in upon by the nurseling for which it was intended. Another will profit by it, with none to say him nay. Tachinae and Melectae: those are the true parasites, consumers of others' goods. Can we say as much of the Chrysis or the Mutilla? In no wise. The Scoliae, whose habits are known to us, are certainly not parasites.
I am better acquainted with the manoeuvres of certain Tachinae, the tiniest of pale-grey Flies, who, cowering on the sand in the sun, in the neighbourhood of a burrow, patiently await the hour at which to strike the fell blow.
In "that hideous lout" the Scorpion he shows us a rough epitome of the shapeless head, the truncated face of the spider. The Tachinae, those "brazen diptera" which swarm on the sunny sand on the watch for Bembex or Philanthus, in order to establish their offspring at its expense, "are bandits clad in fustian, the head wrapped in a red handkerchief, awaiting the hour of attack!"
When the Tachinae have succeeded in laying their eggs on the game warehoused by the Bembex, the burrower's home is invaded by real parasites, in the strict sense of the word. Around the heap of Gad-flies, collected solely for the children of the house, new guests force their way, numerous and hungry, and without the least ceremony plunge into the thick of it.
No, a thousand times no: clay-coloured though they be, the Tachinae have no better chance of attaining their ends than a host of other parasites whose clothing is not of grey frieze to match the locality frequented, as witness the glittering Chrysis, or the Melecta and the Crocisa, with their white spots on a black ground.
Word Of The Day