88 
Ganl. Bull. Singapore 70 (Suppl. 1) 2018 
Fig. 8. Distribution and abundance of order Odonata in the Nee Soon drainage. Solid circles 
indicate sites where representatives were collected and circle sizes are proportionate to 
abundance/numbers of individuals captured as reflected in the accompanying legend. 
drainage. Ecnomidae was the most common Trichoptera family recorded (found at 
22 sites), while five other families - Calamoceratidae, Hydroptilidae, Leptoceridae, 
Odontoceridae and Polycentropodidae, were recorded at more than 10 sites across 
the Nee Soon drainage (Table 2) In total, trichopterans were found in 31 out of the 
40 sampling sites, with their greatest abundance (30 individuals) recorded at site 32 
(Fig. 10). Trichoptera individuals recorded at site 32 consisted of individuals from 
Hydroptilidae (fourteen individuals), Leptoceridae (eleven individuals), Ecnomidae 
(six individuals), Hydropsychidae (one individual), Calamoceratidae (one individual) 
and Polycentropodidae (one individual). 
