Osmylidae,

Martins, Caleb Califre, Ardila-Camacho, Adrian & Aspöck, Ulrike, 2016, Neotropical osmylids (Neuroptera, Osmylidae): Three new species of Isostenosmylus Krüger, 1913, new distributional records, redescriptions, checklist and key for the Neotropical species, Zootaxa 4149 (1), pp. 1-66: 64

publication ID

http://doi.org/10.11646/zootaxa.4149.1.1

publication LSID

lsid:zoobank.org:pub:3C009047-18B7-4C79-9C22-6D7659AA533B

persistent identifier

http://treatment.plazi.org/id/A94487F7-E172-FF82-FF68-2A85FA6E5BA3

treatment provided by

Plazi

scientific name

Osmylidae
status

 

Key to the Neotropical species of Osmylidae 

(modified from Oswald 1994 and Ardila-Camacho & Noriega 2014)

1. Antennae longer than forewing ( Fig. 2View FIGURE 2 A); flagellomeres twice as long as broad ( Figs. 2View FIGURE 2 C); costal field with pterostigma barely perceptible ( Fig. 2View FIGURE 2 B); ocelli absent ( Figs 2View FIGURE 2 D, E).................................................... Gumilla  ... 2

- Antennae shorter than forewing ( Figs 5View FIGURE 5 A; 7B; 34A; 42A); flagellomeres about as long as wide ( Fig. 13View FIGURE 13 C); costal field with pterostigma weakly to well-marked ( Figs. 5View FIGURE 5 A; 6A, B; 7A; 34A; 42A); ocelli present ( Figs. 7View FIGURE 7 B, C)...................... 3

2. Forewing with brown marks on the membrane of Rs and M veins ( Fig. 2View FIGURE 2 B)............................ .. G. adspersus 

- Forewing without brown marks on the membrane of Rs and M veins ( Fig. 4View FIGURE 4 B)........................... G. longicornis 

3. Forewing MP fork near wing base, usually at the level of midpoint between MA stem and first branch of Rs ( Figs 6View FIGURE 6 A, B; 37B).................................................................................................... 4

- Forewing MP fork more distally located, usually near to the mid-length of wing ( Figs 22View FIGURE 22 B; 24C; 34A)................. 8

4. Inner and outer gradate series well-delimited, with conspicuous fuscous brown maculation ( Figs 6View FIGURE 6 A, B).................................................................................................. Paryphosmylus ornatus 

- Not so well-delimited gradates series, without fuscous brown maculation ( Fig. 37View FIGURE 37 B).................... Kempynus  ... 5

5. Forewing apex broadly rounded, subapical margin with a well-delimited pale lunate region posteriorly ( Fig. 37View FIGURE 37 B).................................................................................................... K. crenatus 

- Forewing apex angulate, subapical margin without a well-delimited pale lunate region posteriorly ( Figs 36View FIGURE 36 A; 39A; 42A).. 6

6. Forewing without a prominent biangulate fuscous maculation distally (dark maculae of other shapes may be present) ( Fig. 39View FIGURE 39 A)........................................................................................ K.falcatus 

- Forewing with a prominent biangulate fuscous maculation distally ( Figs 34View FIGURE 34 A, 42A)................................ 7

7. Proximal third of subcostal region of forewing without well-delimited fuscous spots ( Fig. 34View FIGURE 34 A); free distal lobes of female ninth gonapophyses enclosing a narrow, proximally acute space in ventral view ( Fig. 34View FIGURE 34 C).............. K. digoniostigma 

- Proximal third of subcostal region of forewing with two or three well-delimited fuscous spots ( Fig. 42View FIGURE 42 A); free distal lobes of female ninth gonapophyses enclosing a broad, proximally rounded space in ventral view ( Fig. 42View FIGURE 42 C)............. K. tjederi 

8. Forewing narrow, posterodistal margin falcate; hindwing membrane amber suffused ( Fig. 34View FIGURE 34 A)... Phymatosmylus caprorum 

- Forewing broad, posterodistal margin convexly curved; hindwing membrane often hyaline ( Figs 7View FIGURE 7 A; 8B; 13B; 19B; 22B)........................................................................................ Isostenosmylus  ... 9

9. Hindwing with maculae between the C and R1; posterior wing margin from midlength to preapical region below of pterostigma, with apices of longitudinal veins and gradate series brown infuscated, remainder surface of veins mainly yellow- ish ( Fig. 22View FIGURE 22 B)................................................................................ I. nigrifrons 

- Hindwing completely hyaline or with few small amber spots; venation more or less uniformly pigmented ( Figs 7View FIGURE 7 A; 13B; 19B; 22B)............................................................................................... 10

10. Forewing dotted with numerous small amber spots on veins and wing membrane ( Fig. 8View FIGURE 8 B; 13B; 24C)................ 11

- Forewing weakly pigmented, with few amber spots ( Figs 28View FIGURE 28 A; 7A; 10A, C; 16B; 19B)............................. 13

11. Pterostigma not well-marked, translucent ( Fig. 8View FIGURE 8 B); posterior margin of female seventh sternite in ventral view produced in two blunt tips and medially incised ( Fig. 9View FIGURE 9 D)................................................... I. irroratus  n. sp.

- Pterostigma well-marked ( Figs. 13View FIGURE 13 B; 24B); posterior margin of female seventh sternite in ventral view rounded ( Figs 15View FIGURE 15 C, D; 26C, D)............................................................................................ 12

12. Female ninth gonapophyses Y-shaped in ventral view with apical lobes short and simple ( Figs. 26View FIGURE 26 C, D); male ectoproct in lat- eral view posteroventrally with a bluntly rounded lobe ( Fig. 25View FIGURE 25 B)................................... I. pulverulentus 

- Female ninth gonapophyses in ventral view with basal half widened, apical lobes bilobate ( Figs 15View FIGURE 15 C, D); male ectoproct in lat- eral view posterodorsally with a bluntly rounded lobe ( Figs 14View FIGURE 14 B, C).................................... I. contrerasi 

13. Forewing with numerous costal crossveins forked near to the costal margin ( Fig. 28View FIGURE 28 A)............ I. septemtrionalandinus 

- Forewing with costal crossveins unforked or at least with few forks ( Figs 7View FIGURE 7 A; 10A, C; 16B; 19B).................... 14

14. Male ectoproct in lateral view poteromedially with a prominent pointed process ( Figs 9View FIGURE 9 A, B; 20 A, B)................. 15

- Male ectoproct in lateral view posterodorsally with a prominent bifurcated process ( Figs 7View FIGURE 7 B, C; 17A, B).............. 16

15. Distal 1/3 of forewing between R1 and MP fork with numerous small amber spots on crossveins ( Figs. 10View FIGURE 10 A, C); male tenth gonocoxites with apical portion of ventral branches acute ( Figs 9View FIGURE 9 C, D).............................. I. julianae  n. sp.

- Distal 1/3 of forewing between R1 and MP with very few amber spots on crossveins ( Fig. 19View FIGURE 19 B); male tenth gonocoxites with apical portion of ventral branches rounded ( Figs 20View FIGURE 20 A, B)............................................. I. fusciceps 

16. Male ninth gonocoxites in ventral view with apex of medial lobe straight, posterolaterally slightly emarginated ( Figs. 7View FIGURE 7 E, F)....................................................................................... I. bifurcatus  n. sp.

- Male ninth gonocoxites in ventral view with apex of medial lobe rounded, medially with a short rounded lobe ( Fig. 17View FIGURE 17 E, F).............................................................................................. I. fasciatus