First Annoted Checklist of Aquatic Diptera (Insecta) of Two Ramsar Sites (Ahançal and Aït Bouguemaz Rivers) at the Central High Atlas (Morocco): Families Ceratopogonidae, Chironomidae, Tipulidae, Empididae, and Tabanidae

Table 3

Comparison between the Diptera communities in the two studied rivers.

Rivers =>	Aït Bouguemaz			Ahançal			Total			Common species
Families	Sp	Ind	%	Sp	Ind	%	Sp	Ind	%	Sp	%
Ceratopogonidae	0	0	0.00	3	3	0.67	3	3	0.54	0	0.000
Chironomidae	21	102	94.44	21	417	93.71	34	519	93.85	8	0.190
Empididae	1	1	0.93	3	26	5.84	3	27	4.88	1	0.250
Tabanidae	0	0	0.00	1	2	0.45	1	2	0.36	0	0.000
Tipulidae	2	5	4.63	0	0	0.00	2	5	0.90	0	0.000
Total Nb indiv	24	108		28	445		43	553		9	0.173

Species: Sp = number of species, Ind = number of individuals, and % = family number of individuals/total individuals of Diptera.