1983] 
Betz — Biology of Trichaclenotecnum 
105 
Copula lory Behavior 
When a male was fully beneath a female, the posterior end of his 
abdomen probed for hers. The valvulae of a female dropped 
ventrally somewhat, and moved until contact was made with a male. 
The genitalia of male and female T. alexanderae interlocked strongly 
together during copulation. 
When their genitalia became locked, a male lifted a female off the 
substrate by extending his legs, which were still crouched from back- 
ing beneath her. 
A normal copulatory position for a pair of T. alexanderae is 
shown in Figure 3. The hind legs of most (67.8%) males were 
extended slightly more than the other pairs of legs, causing a male’s 
head to be lowered, and raising and slightly arching his abdomen 
(Table 2, A). Males greatly extending their hindlegs usually also had 
greatly arched abdomens; males extending all pairs of legs about 
I 1 
1.0 mm 
Figure 3. Trichadenotecnum alexanderae in copulation. 
