Liosphex
Creators: name: Lohrmann, Volker
name: Ohl, Michael
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Rhopalosomatidae
Liosphex

description: Key to the species of Liosphex of the world
The unknown female of L. quechua and the unknown males of L. longicornis, L. guanabara and L. guarani are not included.
1 Flagellum with 10 segments; metasoma with six visible tergites (female) .................................................................. 2
- Flagellum with 11 segments; metasoma with seven visible tergites (male) ............................................................... 14
2 Length of antennal cleaner of forebasitarsus less than 0.3× length of forebasitarsomere (Fig. 15); forewing 1cu-a distad of M by less than 0.5× its length; forewing m-cu straight (Fig. 7); Rs almost straight or only slightly curved (Fig. 8); metepisternum covered with short fine setae, less dense around episternal scrobe (Fig. 13) (Philippines: Mindanao; Malaysia and Indonesia: Borneo)....................................................................... L. trichopleurum Townes, 1977
- Length of antennal cleaner of forebasitarsus at least 0.35× length of forebasitarsomere (as in Fig. 14); forewing 1cu- a distad of M by more than 1.0× its length; forewing m-cu at least basally or medially curved (as in Fig. 3), Rs angled (as in Figs 9–10); metepisternum with short, fine setae limited to narrow anteroventral stripe (Fig. 12) (North and South America) ...................................................................................................................................................... 3
3 Anterior margin of pronotum with notch (sometimes only visible in oblique dorsolateral view) (as in Fig. 19) ........ 4
- Anterior margin of pronotum without notch, at most slightly concave (as in Fig. 20) ................................................ 8
4 Mid- and hindtibia with cluster of stout, thick bristles at apex (as in Fig. 23) (Brazil)................................................ 5
- Mid- and hindtibia with thin, spine-like bristles at apex (as in Figs 21–22) ................................................................ 6
5 Mid- and hindlegs beyond trochanter orange, femur orange with brown markings on inner side; clypeus orange; wings yellowish (North Argentina, South Brazil) ........................................................................... L. guarani sp. nov.
- Mid- and hindlegs beyond trochanter brown, tibiae stramineous on basal third; clypeus stramineous with brown semicircular marking medially; wings brownish (Southeast Brazil) ..................................................... L. tupi sp. nov.
6 Black markings on head restricted to narrow transverse stripe between upper eyes (Fig. 18); flagellomere II at least 5.0× as long as wide (Costa Rica).............................................................................................. L. longicornis sp. nov.
- Head almost completely black, except inner part of eye notch, gena, clypeus and mouthparts (as in Fig. 16); flagellomere II less than 3.5× as long as wide ............................................................................................................. 7
7 Scutellum, metanotum and tergite I completely dark brown/black; forewing in distal part (2R1) not brownish; polished, asetose area on mesopleuron extending anteriorly, almost reaching to ventral margin of pronotum (Brazil) ..... .................................................................................................................................................... L. guanabara sp. nov.
- Posterior section of scutellum, median section of metanotum and anterior and posterior section tergite I whitish/yellowish; distal part of forewing (2R1) brownish; polished, bare area on mesopleuron distad of ventral margin of pronotum by at least (Costa Rica, Panama, Peru) ..................................................................................... L. bribri sp. nov.
8 UID:LID at least 1.7 ................................................................................................................................................... 9
- UID:LID at most 1.6 .................................................................................................................................................. 10
9 IOD:LOD 1.45; metasoma dark brown to black (Brazil, Paraguay) ....................................... L. micropterus sp. nov.
- IOD:LOD less than 1.1; posterior section of segment I and anterior third of segments II and III stramineous/yellowish, the rest dark brown/blackish (Panama) ........................................................................................ L. darien sp. nov.
10 Tergites III–V with longitudinal median section polished and free of punctures and setae (as in Fig. 25; not in all specimens visible on all three tergites); basal angle of forewing 1Rs cell (see γ in Figs 6, 10) 90° or almost so...... 11
- Tergites III–V with regularly distributed setae, without any bare median section (as in Fig. 24); basal angle of forewing 1Rs (see γ in Fig. 9) less than 75°...................................................................................................................... 12
11 Flagellomere II 3.0 to 3.3× as long as wide; scutellum and metanotum reddish brown; metasoma black with reddish brown (USA: Florida, Louisiana) ........................................................................................... L. varius Townes, 1977
- Flagellomere II at least 3.3× as long as wide; scutellum and metanotum blackish (brown in some specimens from Mississippi); metasoma black with stramineous or pale brown (Mexico, USA: Kentucky, Mississippi)...................... .......................................................................................................................................................... L. boreus sp. nov.
12 Mesosoma and metasoma completely black except anterior and posterior margin of pronotum and anterior third of segment II; hindtibia with two distal bristles on each side of the insertion of the shorter tibial spur (Fig. 21) (Costa Rica, Mexico).................................................................................................................................... L. atratus sp. nov.
- Mesosoma and metasoma stramineous or pale brown with black; hindtibia with two distal bristles on one side of the insertion of the shorter tibial spur (as in Fig. 22)........................................................................................................ 13
13 OOD:LOD less than 2.0; black markings between upper eye margins reaching antennal socket; dorsal face of propodeum black (Costa Rica, Mexico) ..................................................................................................... L. maleku sp. nov.
- OOD:LOD at least 2.2; black markings between upper eye margins not reaching antennal socket (as in Fig. 18); dorsal face of propodeum with two longitudinal black stripes (Costa Rica, Ecuador, Panama, Peru). L. achuar sp. nov.
14 forewing 1cu-a distad of M by less than 0.5× its length; forewing m-cu straight (Fig. 7); Rs almost straight or only slightly curved (Fig. 8); metepisternum covered with short fine setae, sparser around episternal scrobe (Fig. 13)
(Philippines: Mindanao; Malaysia and Indonesia: Borneo) .......................................... L. trichopleurum Townes, 1977 - forewing 1cu-a distad of M by more than 1.0× its length; forewing m-cu at least basally or medially curved (as in Fig. 3); Rs angled (as in Figs 9–10); metepisternum with short, fine setae limited to narrow anteroventral stripe (as in Fig. 12) (North and South America) ........................................................................................................................... 15 15 Anterior margin of pronotum with notch (sometimes only visible in oblique dorsolateral angle) (as in Fig. 19) ..... 16
- Anterior margin of pronotum without notch, at most slightly concave (as in Fig. 20) .............................................. 18
16 Anterior margin of pronotum black; lateral margins of black subantennal marking ventrad diverging, extending nar- rowly down to lateral angle of clypeus (as in Fig. 17) (Southeast Brazil) ............................................ L. tupi sp. nov.
- Anterior margin of pronotum yellowish to pale brown; lateral margins of black subantennal marking almost parallel, restricted to subantennal plate (as in Fig. 16) ............................................................................................................. 17
17 Scutellum black; median section of metanotum stramineous (Brazil, Costa Rica, Panama, Peru) .... L. bribri sp. nov.
- Scutellum orange/brownish; metanotum dark brown/black (Peru) ................................................ L. quechua sp. nov.
18 UID:LID at least 1.65 ................................................................................................................................................. 19
- UID:LID less than 1.55 .............................................................................................................................................. 20
19 Metasoma completely dark brown to black; IOD:LOD at least 1.45 (Brazil, Paraguay) .......... L. micropterus sp. nov.
- Metasoma with yellow/whitish markings; IOD:LOD less than 1.25 (Panama) ............................... L. darien sp. nov.
20 Basal angle of forewing 1Rs cell (see γ in Figs 6, 10) 90° or almost so .................................................................... 21
- Basal angle of forewing 1Rs cell (see γ in Fig. 9) less than 75°................................................................................. 22
21 Scutellum and metanotum reddish brown; metasoma black with reddish brown (USA: Florida, Louisiana) ............... ................................................................................................................................................. L. varius Townes, 1977
- Scutellum and metanotum blackish (only brown in some specimens from Mississippi); metasoma black with stramineous or pale brown (Mexico, USA: Kentucky, Mississippi) ................................................. L. boreus sp. nov.
22 Specimen almost completely black (Costa Rica, Mexico) ................................................................ L. atratus sp. nov.
- Specimen basically pale brown or stramineous with black markings (Costa Rica, Ecuador, Panama, Peru) ........... 23
23 Posterior section of tergite II dark brown to black (Costa Rica, Mexico) ........................................ L. maleku sp. nov.
- Posterior section of tergite II pale brownish or stramineous (Costa Rica, Ecuador, Panama, Peru) ............................. ........................................................................................................................................................... L. achuar sp. nov.
description: Published as part of Lohrmann, Volker & Ohl, Michael, 2010, World revision of the wasp genus Liosphex Townes, 1977 (Hymenoptera: Rhopalosomatidae), pp. 1-43 in Zootaxa 2384 on pages 7-8, DOI: 10.5281/zenodo.193731