ADVANCED THEORIES
Too Long; Didn't Read
The species of the genus Sphex are fairly numerous, but are for the most part strangers to my country. As far as I know, the French fauna numbers only three, all lovers of the hot sun of the olive district, namely, the Yellow-winged Sphex (Sphex flavipennis), the White-edged Sphex (S. albisecta), and the Languedocian Sphex (S. occitanica). Now it is not without a lively interest that the observer notices in the case of these three freebooters a choice of provisions which is in strict accordance with the rigid laws of entomological classification. To feed their grubs, all three choose solely Orthoptera.The first hunts Crickets, the second Locusts, the third Ephippigers.