Ommatides, Uhler, 1894

Hoey-Chamberlain, Rochelle & Weirauch, Christiane, 2019, Taxonomic revision of the New World big-eyed minute litter bug genus Ommatides Uhler (Hemiptera: Schizopteridae), Zootaxa 4585 (1), pp. 73-99 : 79-80

publication ID	https://doi.org/ 10.11646/zootaxa.4585.1.5
publication LSID	lsid:zoobank.org:pub:3C91261D-F470-4953-8AEF-078C59E9968A
persistent identifier	https://treatment.plazi.org/id/03A45377-040E-FFB1-FF7C-F8F9FA3DB1E3
treatment provided by	Plazi
scientific name	Ommatides
status

Treatment

Key to species of Ommatides View in CoL (males only)

Because diagnostic features at the species level are heavily tied to the labial armature in males, the provided key to species can only be applied to male specimens.

1 Total body length less than 1.25 mm ( Fig. 1 View FIGURE 1 , O. insignis and O. zanderij sp. nov.)................................... 2

- Total body length greater than or equal to 1.25 mm ( Fig. 1 View FIGURE 1 , remaining species)..................................... 3

2 Proximal half of forewing pale ( Fig. 1 View FIGURE 1 , O. insignis ), 1st labial segment extending from head at right angle in lateral view ( Fig. 2 View FIGURE 2 ); short, thickened forewing, almost elytrous ( Fig. 1 View FIGURE 1 ; O. insignis ), total body length 1.05 mm ............ O. insignis Uhler

- Proximal half of forewing mostly dark with pale border along claval suture ( Fig. 1 View FIGURE 1 , O. zanderij sp. nov.), 1st labial segment extending from head as rounded lobe in lateral view ( Fig. 2 View FIGURE 2 , O. zanderij sp. nov.); macropterous with short wing ( Fig. 1 View FIGURE 1 , O. zanderij sp. nov.), total length 1.24 mm ..................................................... O. zanderij sp. nov.

3 1st labial segment armed with stiff setae and dorsally with lobe on either side of labial groove ( Figs 2 View FIGURE 2 , 4 View FIGURE 4 , 5 View FIGURE 5 , e.g., O. duodentis sp. nov. and O. pristis sp. nov.).......................................................................... 4

- 1st labial segment not armed with stiff setae and dorsally without lobe on either side of labial groove ( Figs 2 View FIGURE 2 , 5 View FIGURE 5 , O. nudus sp. nov.)................................................................................... O. nudus sp. nov.

4 4th labial segment with heavily sclerotized proximal, lateral and sometimes more distal, dorsal processes ( Figs 2 View FIGURE 2 , 4 View FIGURE 4 , 5 View FIGURE 5 , e.g., O. duodentis sp. nov., O. tridentis sp. nov.)................................................................... 5

- 4th labial segment without heavily sclerotized processes ( Figs 2 View FIGURE 2 , 5 View FIGURE 5 , e.g., O. nudus sp. nov., O. pristis sp. nov.)............ 8

5 4th labial segment anteriorly with pair of short, lateral processes ( Fig. 5 View FIGURE 5 , e.g., O. parvidentis , O. yoderi )................. 9

- 4th labial segment anteriorly with pair of long, lateral processes ( Figs 4 View FIGURE 4 , 5 View FIGURE 5 , e.g., O. duodentis sp. nov., O. tridentis sp. nov.). 6

6 Proximal processes of 4th labial segment strongly curved, apices pointing proximad ( Fig. 5 View FIGURE 5 )........... O. tridentis sp. nov.

- Proximal processes of 4th labial segment straight or slightly curved, apices pointing distad ( Fig. 5 View FIGURE 5 )..................... 7

7 Proximal processes of 4th labial segment slightly curved, apices acute and unarmed ( Fig. 5 View FIGURE 5 )........... O. duodentis sp. nov.

- Proximal processes of 4th labial segment straight, apices blunt and with serrated spines ( Fig. 5 View FIGURE 5 )................................................................................................. O. ornatus (Carpintero & Dellapé)

8 Macropterous ( Fig. 1 View FIGURE 1 , e.g., O. duodentis sp. nov., O. nudus ), abdominal spiracle 8 placed on fully sclerotized tubercle of tergum 8 process ( Fig. 6 View FIGURE 6 , white arrow)......................................................... O. pristis sp. nov.

- Submacropterous ( Fig. 1 View FIGURE 1 , e.g., O. parvidentis sp. nov.) abdominal spiracle 8 placed on fully membranous tubercle of tergum 8 process ( Fig. 6 View FIGURE 6 , black arrow)............................................................ O. pillcopata sp. nov.

9 Enlarged 1st labial segment consisting of large lobe with 10 short, stout setae along dorsal margin and smaller coiled lobes with 2 long, stout setae at tips ( Fig. 5 View FIGURE 5 ; O. parvidentis sp. nov.)................................ O. parvidentis sp. nov.

- 1st labial segment with single lobe, beset with many short, stout setae ( Fig. 5 View FIGURE 5 ; O. yoderi sp. nov.)........ O. yoderi sp. nov.