Urothrips

Ulitzka, Manfred R. & Mound, Laurence A., 2014, New generic synonyms in the Palaeotropical genus Urothrips (Thysanoptera: Phlaeothripinae) with one new species from Seychelles, Zootaxa 3755 (6), pp. 595-600 : 598

Key to species of Urothrips

1. Antennal segments I–VIII all distinct from each other with VII–VIII separate but closely joined............... reticulatus

-. Antennal segments VII–VIII fused without suture........................................................... 2

2. Antennal segment III clearly distinct from segment IV........................................................ 3

-. Antennal segment III broadly joined or fused to segment IV................................................... 5

3. Ocellar region of head broadly rounded ( Fig. 1 ).......................................................... tarai

-. Ocellar region of head prolonged over base of antennae ( Fig. 4 )............................................... 4

4. Antennal segments IV–V fused ( Fig. 4 )............................................................... junctus

-. Antennal segments IV–V distinct from each other.................................................... gibberosa

5. Ocellar region of head prolonged over base of antennae into two small rounded tubercles ( Fig. 3 ); mesoeusternum with median longitudinal division................................................................................ reedi

-. Ocellar region of head broadly rounded, scarcely overhanging base of antennae ( Fig. 5 ); mesoeusternum anterior margin entire.................................................................................................... 6

6. Antennal segments III–V fused with sutures indicated by constrictions ( Fig. 6 )........................... kobroi sp.n.

-. Antennal segments III–V articulated but broadly joined ( Fig. 2 )................................... paradoxus -group

Figures

FIGURES 1 – 4. Urothrips species, head, thorax and antennae. (1) tarai; (2) paradoxus; (3) reedi; (4) junctus.

FIGURES 5 – 7. Urothrips kobroi sp. n. (5) head and thorax; (6) antenna; (7) abdomen.