transtilla

plural transtillae

1. biologyA band of connective tissue between and at the base of the valva of some insects.

   One type is the separated transtilla covered with spines.

   2000, Bulletin of Natural History, number 4, page 49

   2 more examples

   The small lobe of the transtillae distinguishes the species from its preceding congeners; the narrow vinculum is also a special feature.

   1973, L. A. Gozmány, L. Vári, The Tineidae of the Ethiopian Region, page 131

   The male transtilla and valva are truncated, and the transtilla is as long as the valva (Fig. 71).

   1992, James A. Scott, The Butterflies of North America, page 352