Frank N. Young

A New Species of Agaporomorphus from Florida, a New Nearctic Record for the Genus (Coleoptera: Dytiscidae)

Agaporomorphus dodgei sp. nov. is described from ultraviolet light trap collections from various counties of Florida. The genus has been recorded previously from South and Central America. The absence of males in the collections, which is also characteristic of some other species of the genus, suggests that parthenogenesis may be involved.

The New World species of the water‐beetle genus Notomicrus (Noteridae)*

Eight species of Notomicrus Sharp are recognized and described or partially redescribed with figures of dorsal outlines and external male genitalia: brevicomis Sharp, gracilipes Sharp, huttoni sp.n., malkini sp.n., nanulus (LeConte), reticulatus Zimmermann, sharpi Balfour‐Browne, traili Sharp. A key for identification is given, but the main reliance for recognition of the species is on the external male genitalia. New distribution records are given for all species.

A Possible Recycling Mechanism in Tropical Forrest

The abundance of noterid beetles in root mats along many miles of swift streams in Columbia suggests that they play a role in carrying nutrients back into the surrounding forests.

A New Species of Gyretes from Western Florida

Fig. 1. Mesial view of distal end of first pleopod of first form male. Fig. 2. Lateral view of carapace. Fig. 3. Lateral view of distal end of first pleopod of first form male. Fig. 4. Mesial view of distal end of first pleopod of second form male. Fig. 5. Lateral view of distal end of first pleopod of second form male. Fig. 6. Lateral view of first pleopod of first form male. Fig. 7. Epistome. Fig. 8. Annulus ventralis. Fig. 9. Antennal scale. Fig. 10. Dorsal view of carapace. Fig. 11. Basiopodites and ischiopodites of fourth and third pereiopods of first form male. Fig. 12. Distal three podomeres of first pereiopod of first form male.