270 
Psyche 
[September-December 
Table 2. Number of arthropod carcasses (“prey remains”) found in webs occu- 
pied by dictynids. Listed according to their estimated relative sizes (prey size/ spider 
size). When more than one individual dictynid occupied the same web, relative prey 
size based on largest spider. Unidentified Dictyna: sp. no. 1, Querecho Plains, New 
Mexico, U.S.A.; sp. no. 2, Whiskey Mountain, Wyoming, U.S.A.; sp. no. 3, Lake 
Chapala, Jalisco and Michoacan, Mexico. 
Species 
Type of Prey 
Number of Prey 
Smaller Same Larger 
than Size as than 
Spider Spider Spider 
Total 
Dictyna albopilosa 
Diptera 
8 
5 
2 
15 
Franganillo 
Dictyna annexa 
Diptera 
30 
16 
1 
47 
Gertsch & Chamberlin 
Coleoptera 
0 
1 
0 
1 
Dictyna bellans 
Diptera 
2 
2 
0 
4 
Chamberlin 
Lepidoptera 1 
0 
0 
1 
1 
Dictyna calcarata 
Diptera 
55 
16 
4 
75 
Banks 
Coleoptera 
0 
2 
2 
4 
Homoptera 2 
2 
0 
0 
2 
Hymenoptera 3 
0 
2 
0 
2 
Lepidoptera 1 
0 
0 
1 
1 
Dictyna coloradensis 
Diptera 
21 
1 
2 
24 
Chamberlin 
Hemiptera 
0 
0 
1 
1 
Dictyna completa 
Diptera 
1 
5 
1 
7 
Chamberlin & Gertsch 
Dictyna tridentata 
Diptera 
42 
46 
37 
125 
Bishop & Rudeman 
Coleoptera 
0 
0 
1 
1 
Hemiptera 
0 
0 
1 
1 
Dictyna phylax 
Diptera 
9 
3 
0 
12 
Gertsch & Ivie 
Dictyna sp. no. 1 
Diptera 
26 
7 
0 
33 
Hymenoptera 4 
0 
0 
1 
1 
Lepidotera 1 
0 
0 
1 
1 
Conspecific 
1 
0 
0 
1 
Dictyna sp. no. 2 
Diptera 
0 
4 
4 
8 
Hymenoptera 4 
0 
0 
1 
1 
Dictyna sp. no. 3 
Diptera 
7 
8 
6 
21 
Homoptera 2 
1 
0 
0 
1 
