Aulerci is a generic name for some of the Celtic

Celt

The Celts were a diverse group of tribal societies in Iron Age and Roman-era Europe who spoke Celtic languages.The earliest archaeological culture commonly accepted as Celtic, or rather Proto-Celtic, was the central European Hallstatt culture , named for the rich grave finds in Hallstatt, Austria....

 peoples of ancient Gaul

Gaul

Gaul was a region of Western Europe during the Iron Age and Roman era, encompassing present day France, Luxembourg and Belgium, most of Switzerland, the western part of Northern Italy, as well as the parts of the Netherlands and Germany on the left bank of the Rhine. The Gauls were the speakers of...

, which included several Celtic tribes. Julius Caesar

Julius Caesar

Gaius Julius Caesar was a Roman general and statesman and a distinguished writer of Latin prose. He played a critical role in the gradual transformation of the Roman Republic into the Roman Empire....

 (B. G. ii. 34) names the Aulerci with the Veneti

Veneti (Gaul)

The Veneti were a seafaring Celtic people who lived in the Brittany peninsula , which in Roman times formed part of an area called Armorica...

 and the other maritime states. In B. G. vii. 75, he enumerates, among the clients of the Aedui

Aedui

Aedui, Haedui or Hedui , were a Gallic people of Gallia Lugdunensis, who inhabited the country between the Arar and Liger , in today's France. Their territory thus included the greater part of the modern departments of Saône-et-Loire, Côte-d'Or and Nièvre.-Geography:The country of the Aedui is...

, the Aulerci Brannovices

Brannovices

The Brannovices or Brannovi were a Gallic people mentioned by Julius Caesar . D'Anville conjectures that they may have been in the canton of Brionnois, near Mâcon, Saône-et-Loire, France. Walckenaer has some remarks on these people. In Caesar there are also readings "Blannovicibus" and...

 and Brannovii, as the common text stands; but the names in this chapter of Caesar are corrupt, and Brannovii does not appear to be genuine. If the name Aulerci Brannovices is genuine in vii. 75, this branch of the Aulerci, which was dependent on the Aedui, must be distinguished from those Aulerci who were situated between the Lower Seine

Seine

The Seine is a -long river and an important commercial waterway within the Paris Basin in the north of France. It rises at Saint-Seine near Dijon in northeastern France in the Langres plateau, flowing through Paris and into the English Channel at Le Havre . It is navigable by ocean-going vessels...

 and the Loire

Loire

Loire is an administrative department in the east-central part of France occupying the River Loire's upper reaches.-History:Loire was created in 1793 when after just 3½ years the young Rhône-et-Loire department was split into two. This was a response to counter-Revolutionary activities in Lyon...

, and separated from the Aedui by the Senones

Senones

The Senones were an ancient Gaulish tribe.In about 400 BC they crossed the Alps and, having driven out the Umbrians settled on the east coast of Italy from Forlì to Ancona, in the so-called ager Gallicus, and founded the town of Sena Gallica , which became their capital. In 391 BC they invaded...

, Carnutes

Carnutes

The Carnutes, a powerful Celtic people in the heart of independent Gaul, dwelled in a particularly extensive territory between the Sequana and the Liger rivers. Their lands later corresponded to the dioceses of Chartres, Orléans and Blois, that is, the greater part of the modern departments of...

, and Bituriges Cubi.

Again, in vii. 75, Caesar mentions the Aulerci Cenomani

Cenomani

The Cenomani or Aulerci Cenomani were a Gallic people, a branch of the Aulerci in Gallia Celtica, whose territory corresponded generally to Maine in the modern départment of Sarthe, west of the Carnutes between the Seine and the Loire...

 and the Aulerci Eburovices

Eburovices

The Eburovices, or Eburovici, were a Gallic tribe, a branch of the Aulerci. They are mentioned by Julius Caesar with the Lexovii. Pliny speaks of the Aulerci, qui cognominantur Eburovices, et qui Cenomani. Ptolemy makes the extend from the Ligeris to the Sequana , which is not true...

. In B. G.vii. 75 Caesar mentions the maritime states (ii. 34) under the name of the Armoric

Armorica

Armorica or Aremorica is the name given in ancient times to the part of Gaul that includes the Brittany peninsula and the territory between the Seine and Loire rivers, extending inland to an indeterminate point and down the Atlantic coast...

 states; but his list does not agree with the list in ii. 34, and it does not contain the Aulerci as the Aulerci were not regarded a maritime tribe. Caesar (iii. 17) mentions a tribe of Diablintes

Diablintes

The Diablintes or Diablintres or Diablindi or Aulerci Diaulitae were an ancient people of Gaul, a division of the Aulerci. Julius Caesar mentions the Diablintes among the allies of the Veneti and other Armoric states whom Caesar attacked. The Diablintes are mentioned between the Morini and Menapii...

 or Diablintres, to whom Ptolemy

Ptolemy

Claudius Ptolemy , was a Roman citizen of Egypt who wrote in Greek. He was a mathematician, astronomer, geographer, astrologer, and poet of a single epigram in the Greek Anthology. He lived in Egypt under Roman rule, and is believed to have been born in the town of Ptolemais Hermiou in the...

gives the generic name of Aulerci. It seems, then, that Aulerci was a general name under which several tribes were included.