Lathrolestes

Reshchikov, Alexey V., Soper, Anna & Van, Roy G., 2010, Review and key to Nearctic Lathrolestes Förster (Hymenoptera: Ichneumonidae), with special reference to species attacking leaf mining tenthredinid sawflies in Betula Linnaeus (Betulaceae), Zootaxa 2614, pp. 1-17 : 4-6

publication ID

https://doi.org/ 10.5281/zenodo.197875

DOI

https://doi.org/10.5281/zenodo.6210082

persistent identifier

https://treatment.plazi.org/id/A654FF3B-FFFD-D972-0D8C-FD83C4D9CCF0

treatment provided by

Plazi

scientific name

Lathrolestes
status

 

Key to Nearctic species of Lathrolestes View in CoL View at ENA

1. Occipital carina complete dorsally .............................................................................................................................. 2

-. Occipital carina incomplete dorsally ......................................................................................................................... 24

2. Propodeum without carinae or only area petiolaris present. Clypeus towards apex projecting strongly anteriorly. 21

-. Propodeum with carinae more or less complete ( Figs 31–36 View FIGURE 21 – 40. 21 – 30 ). Clypeus towards apex not strongly projecting anteriorly ............................................................................................................................................................................... 3

3. Face and clypeus separated by a transverse impression or not separated ( Figs 53–56 View FIGURES 53 – 58 ) ............................................. 4

-. Face and clypeus separated by a transverse suture or sharp groove ( Fig. 57 View FIGURES 53 – 58 a) ......................................................... 14

4. Antennal flagellum with median articles white. Ovipositor straight, without notch ( Fig. 14 View FIGURES 1 – 20 ) ................................... 5

-. Antennal flagellum with articles uniformly colored. Ovipositor straight ( Figs 3, 4, 9 View FIGURES 1 – 20 ) or with shallow notch ( Figs 6, 8 View FIGURES 1 – 20 ) .................................................................................................................................................................................. 6

5. Face smooth, not sculptured, punctures weak. Forewing infuscate. Propodeal carinae complete, except costula absent, carinae not strongly raised ......................................................................................... L. erugatus Barron, 1994 View in CoL

-. Face sculptured. Forewing not infuscate. Propodeal carinae complete, strongly raised .... L. asperatus Barron, 1994 View in CoL

6. Lower part of mesopleuron, mat, shagreen or rugose, not punctate. If ovipositor with shallow notch, its apical part to basal part ratio 0.35 ( Fig. 6 View FIGURES 1 – 20 ) ......................................................................................................................................... 7

-. Lower part of mesopleuron shiny, distinctly punctate, with distinct sparse deep punctures. If ovipositor with shallow notch, its apical part to basal part ratio 0.5 ( Fig. 8 View FIGURES 1 – 20 ) .................................................................................................. 11

7. Tarsal claws pectinate ( Figs 41, 42 View FIGURE 41 – 52. 41 – 50 ) ............................................................................................................................ 8

-. Tarsal claws short, strongly curved at apex, with one basal tooth or basal lobe ( Fig. 43, 44 View FIGURE 41 – 52. 41 – 50 ) .................................. 10

8. Ovipositor with shallow notch ( Fig. 6 View FIGURES 1 – 20 )........................................................ L. scutellatus ( Ashmead, 1890) View in CoL stat. rev.

-. Ovipositor without notch ( Fig. 1, 2 View FIGURES 1 – 20 ) ........................................................................................................................... 9

9. Ovipositor not stout dorsally ( Fig. 1 View FIGURES 1 – 20 ); mesosoma not wide, with mesopleuron not projecting; area superomedia elongate ( Fig. 31 View FIGURE 21 – 40. 21 – 30 ); 2nd metasomal tergum almost as wide as long, with superficial sculpture ........................................... ...................................................................................................................................... L. syringe Reshchikov sp. nov.

-. Ovipositor stout dorsally ( Fig. 2 View FIGURES 1 – 20 ); mesosoma rather wide, with projecting mesopleuron; area superomedia as long as wide ( Fig. 32 View FIGURE 21 – 40. 21 – 30 ); 2nd metasomal tergum transverse, polished ...................................... L. barroni Reshchikov sp. nov.

10. Costula absent ( Fig. 33 View FIGURE 21 – 40. 21 – 30 ). First metasomal tergum without median longitudinal carinae and projections at spiracles, evenly granulate, except that basal part of petiole is polished with a longitudinal groove ( Fig. 37 View FIGURE 21 – 40. 21 – 30 ). Apical margin of male subgenital plate notched ( Fig. 40 View FIGURE 21 – 40. 21 – 30 ). Face with bulge ( Fig. 55 View FIGURES 53 – 58 a). Lower part of mesopleuron without punctures, mat, shagreen. Tarsal claws with preapical teeth ( Fig. 43 View FIGURE 41 – 52. 41 – 50 ). Body from uniformly yellow-pale to dark with pale spots on mesolpeuron and metasoma ( Fig. 55 View FIGURES 53 – 58 b) ..................................................................... L. fissus Reshchikov sp. nov.

-. Costula present ( Fig. 34 View FIGURE 21 – 40. 21 – 30 ). First metasomal tergum with projections at spiracle and median longitudinal carinae, entirely granulate, without basal polished part ( Fig. 38 View FIGURE 21 – 40. 21 – 30 ). Apical margin of male subgenital plate without notch. Face without bulge. Lower part of mesopleuron rugose. Tarsal claws with basal lobe ( Fig. 44 View FIGURE 41 – 52. 41 – 50 ). Body black with black mesopleuron and reddish-yellow face and maculae on sides of metasomal tergum ( Fig. 56 View FIGURES 53 – 58 b) .................................... ................................................................................................................................... L. thomsoni Reshchikov sp. nov.

11. Face with punctures deeply impressed. Head not narrowed behind the eyes, long. Tarsal claws with teeth distinctly separated ( Fig. 46 View FIGURE 41 – 52. 41 – 50 ). Ovipositor straight and thin, without notch ( Fig. 9 View FIGURES 1 – 20 ) ............................. L. platynus (Davis, 1897) View in CoL

-. Face with punctures shallowly impressed. Ovipositor with notch ( Figs 8 View FIGURES 1 – 20 , 23 View FIGURE 21 – 40. 21 – 30 )......................................................... 12

12. Propodeum with area petiolaris and area superomedia confluent. Body black ........................ L. planus Barron, 1994 View in CoL

-. Propodeum with area petiolaris and area superomedia separate by apical transverse carina. Body black or reddishyellow, mostly reddish-yellow or mostly black with yellow metasoma .................................................................... 13

13. Body of female uniformly reddish-yellow, of male reddish-yellow tinged reddish-brown and black. Head narrowed behind the eyes. Propodeum with carinae complete. Clypeus and face separated by impression ................................. ........................................................................................................................................... L. obscurellus (Davis, 1897) View in CoL

-. Body reddish-yellow and black, dorsally mostly black or dark reddish-brown, ventrally mostly reddish-yellow. Head not narrowed behind the eyes; Propodeum with carinae complete, except costula absent. Clypeus and face confluent, not separated by a groove or impression .................................................................. L. luteolator (Gravenhorst, 1829) View in CoL

14. Propodeum with carinae complete, costula present ( Fig. 36 View FIGURE 21 – 40. 21 – 30 ). 5th article of tarsus enlarged ( Fig. 52 View FIGURE 41 – 52. 41 – 50 ) ......................... ......................................................................................................................................... L. zeugophorae Barron, 1994 View in CoL

-. Propodeum with carinae incomplete ( Fig. 35 View FIGURE 21 – 40. 21 – 30 ). 5th article of tarsus not enlarged or only slightly enlarged (except L. mnemonicae View in CoL ) ( Fig. 51 View FIGURE 41 – 52. 41 – 50 ) ............................................................................................................................................... 15

15. Face and clypeus separated by transverse distinct groove.......................................................................................... 16

-. Face and clypeus separated by a transverse suture .................................................................................................... 18

16. Head with yellow maculae ( Fig. 58 View FIGURES 53 – 58 a). Tarsal claws with preapical teeth or basal lobe ( Figs 47–50 View FIGURE 41 – 52. 41 – 50 ) ...................... 17

-. Head black. Tarsal claws pectinate with three teeth ( Fig. 45 View FIGURE 41 – 52. 41 – 50 ). Area basalis and area superomedia present; costula absent ( Fig. 35 View FIGURE 21 – 40. 21 – 30 ). 2nd metasomal tergum reddish ( Fig. 57 View FIGURES 53 – 58 b) .......................................... L soperi Reshchikov sp. nov.

17. Tarsal claws with two preapical teeth, one of them apically cloven ( Fig. 49 View FIGURE 41 – 52. 41 – 50 ). Area basalis and area superomedia distinct but confluent ................................................................................................................. L. dentatus Barron, 1994 View in CoL

-. Tarsal claws with basal lobe ( Fig. 47 View FIGURE 41 – 52. 41 – 50 ). Area basalis and area superomedia not defined................................................ ....................................................................................................................................... L. nigricollis (Thomson, 1883) View in CoL

18. Tarsal claws with one preapical tooth or teeth ( Figs 48, 50 View FIGURE 41 – 52. 41 – 50 ). Body small, 3.0–4.0 mm............................................ 19

-. Tarsal claws pectinate or not pectinate, without preapical tooth. Body medium or large size, 4.0–7.0 mm............. 20

19. Ovipositor curved up ( Fig. 24 View FIGURE 21 – 40. 21 – 30 ). Tarsi each with 5th article enlarged. Tarsal claws with two preapical teeth ( Fig. 48 View FIGURE 41 – 52. 41 – 50 ). Occiput at middle acute. Parameres longer then aedeagus. Body dark reddish-brown to black .................................... ..................................................................................................................................... L. mnemonicae ( Rohwer, 1914) View in CoL

-. Ovipositor straight ( Fig. 10 View FIGURES 1 – 20 ). Tarsi each with 5th article not enlarged. Tarsal claws with one preapical tooth ( Fig. 50 View FIGURE 41 – 52. 41 – 50 ). Occiput at middle obtuse. Parameres very short, much shorter then aedeagus, broad medianly. Body mostly reddishbrown ..................................................................................................................................... L. clavipes Barron, 1994 View in CoL

20. Body black with reddish-yellow maculae. Antennal flagellum dark reddish-brown. Clypeus slightly projecting anteriorly. Ovipositor straight ( Fig. 11 View FIGURES 1 – 20 ). Body medium size, 4.0 mm....................................... L. euryremus Barron, 1994 View in CoL

-. Body uniformly reddish-yellow or reddish-yellow with black maculae. Antennal flagellum in basal half dark reddish-brown, in apical half pale yellow. Clypeus strongly projecting anteriorly. Body large, 6.0–7.0 mm..................... ............................................................................................................................................... L. protrusus Barron, 1994 View in CoL

21. Occipital carina intercepting hypostomal carinae before base of mandible. Propodeum with carinae absent. Ovipositor with notch and cavity at apex of lower valvae ( Fig. 12 View FIGURES 1 – 20 ) ................................................... L. protenus Barron, 1994 View in CoL

-. Occipital carina intercepting hypostomal carinae at base of mandible. Propodeum with carinae partly complete. Ovipositor without notch ( Figs 7, 13 View FIGURES 1 – 20 ) ............................................................................................................................. 22

22. Clypeus not separate from face by a transverse groove or impression. Propodeum with area petiolaris defined. Nervellus intercepted slightly below middle. Face, mesopleuron and propodeum roughly rugose, with punctures shallowly impressed. Ovipositor without notch, stout at base ( Fig. 13 View FIGURES 1 – 20 ) ....................... L. tomostethi (Cushman, 1935) View in CoL

-. Clypeus distinctly separate from face by a transverse groove. Propodeum with area petiolaris and apical transverse carina distinctly defined. Nervellus intercepted far below middle. Face, mesopleuron and propodeum granulated, with punctures deeply impressed ................................................................................................................................ 23

23. Metasomal terga smooth, punctures large, deeply impressed. Body black, except face and clypeus of males yellow. Ovipositor short, straight and swollen, without teeth ( Fig. 7 View FIGURES 1 – 20 ) ............................................ L. breviremus Barron, 1994 View in CoL

-. Metasomal terga granulate, punctures shallow, slightly impressed. Body black with reddish-yellow maculae. Metasomal terga of females red, except first tergum black, reddish-yellow at apex, that of males black, except second and third terga with broad pale yellow transverse macula. Ovipositor long ( Fig. 15 View FIGURES 1 – 20 b), longer than metasoma, with apical teeth ( Fig. 15 View FIGURES 1 – 20 a) ...................................................................................................................... L. ensator (Brauns, 1898)

24. Propodeum with carinae incomplete, area petiolaris and rarely remnants of area superomedia at sides present. Subgenital plate of female large. Ovipositor very short, shorter than height of metasoma ( Figs 17, 18 View FIGURES 1 – 20 ) ....................... 26

-. Propodeum with more nearly carinae complete, except costula absent or with only area petiolaris, apical transverse carina, and area superomedia in apical part defined. Subgenital plate of female not large. Ovipositor as long as height of metasoma ( Figs 27–30 View FIGURE 21 – 40. 21 – 30 ) .............................................................................................................................. 25

25. Clypeus with apical margin subtruncate; at apex projecting slightly anteriorly. Propodeum with carinae complete, except costula absent. Head, mesosoma black, metasomal terga mostly reddish-yellow. Face and clypeus of males black ........................................................................................................................... L. constrictus (Provancher, 1882) View in CoL

-. Clypeus of females with apical margin at middle strongly concave, that of males less strongly; at apex projecting strongly anteriorly. Propodeum with carinae incomplete, except area petiolaris, apical transverse carina, and area superomedia in apical part defined. Body black, legs reddish-yellow. Face and clypeus of males yellow....................

............................................................................................................................................ L. profenusae Barron, 1994 View in CoL 26. Face very convex, with distinct bulge at middle. Tarsal claws pictinate................................................................... 27

-. Face in dorsolateral profile flat or moderately convex. Tarsal claws each with teeth or pictinate, if pictinate and face moderately convex ovipositor as long as three first terga of metasoma, with apical teeth, or mesosoma reddish-yellow, or parameres of males very broad ...................................................................................................................... 30

27. First metasomal tergum with deep median longitudinal groove from base to near apex. Clypeus of females at apical margin on each side with distinct “tooth-like projection. Propodeum with area petiolaris obscurely defined ............. .................................................................................................................................................. L. messae Barron, 1994 View in CoL

-. First metasomal tergum with shallow median longitudinal impression from base to near apex. Clypeus of females at apical margin on each side without distinct “tooth-like projection. Propodeum with area petiolaris distinctly defined .................................................................................................................................................................................... 28

28. Face at middle smooth, with shallow punctures. Head black, clypeus at apex reddish-brown. Mesosoma entirely black ........................................................................................................................................ L. bullatus Barron, 1994 View in CoL

-. Face at middle granulate. Head of females reddish-yellow with black maculae or black with face, clypeus, orbits reddish-yellow maculae. Head of males pale yellow with vertex, frons at middle black or head black with face, clypeus, orbits, genae reddish-yellow. Mesosoma mostly pale yellow or black with reddish-yellow maculae. [Ovipositor without notch ( Figs 27, 28 View FIGURE 21 – 40. 21 – 30 )] ......................................................................................................................... 29

29. Mesopleuron smooth. Head of females reddish-yellow with black maculae; that of males pale yellow with vertex, frons at middle black. Mesosoma of females black with reddish-yellow maculae, that of males pale yellow, in part black. Metasomal terga of females reddish-brown, first tergum black, second, third, fourth terga in part reddish-yellow. Metasomal terga of males dark reddish-brown, in part reddish-yellow ........................ L. gibbosus Barron, 1994 View in CoL

-. Mesopleuron granulate. Head of females and males black with yellow or reddish-yellow maculae. Metasomal terga of females and males black, third tergum of males at base reddish-yellow ........................... L. pictus Cushman, 1933 View in CoL

30. Face flat...................................................................................................................................................................... 31

-. Face moderately convex ............................................................................................................................................ 33

31. Body color uniformly reddish-yellow. Ovipositor straight and not thin in apical part ( Fig. 19 View FIGURES 1 – 20 ).................................... ............................................................................................................................................ L. ochraceus Barron, 1994 View in CoL

-. Body color black and reddish-yellow. Ovipositor thin in apical part and slightly angular bent ( Figs 20 View FIGURES 1 – 20 , 21 View FIGURE 21 – 40. 21 – 30 )........... 32

32. Clypeus not separate from face. Females black and reddish-yellow; head, propodeum, metasomal terga mostly black; mesosoma mostly reddish-yellow. Males with head and mesosoma mostly very pale yellow, almost white; metasomal terga mostly black, with pale transverse bands ................................................. L. carinatus Barron, 1994 View in CoL

-. Clypeus separate from face by transverse impression. Females black; third and fourth metasomal terga reddishbrown. Males black with extensive yellow maculae; head mostly yellow, upper face, vertex black; mesosoma dorsally black, laterally and ventrally mostly yellow; metasomal terga black, third and fourth terga reddish-brown ....... .................................................................................................................................................. L. bulbus Barron, 1994 View in CoL

33. Tarsal claws pectinate ................................................................................................................................................ 34

-. Tarsal claws each with teeth (as at Figs 48–50 View FIGURE 41 – 52. 41 – 50 )......................................................................................................... 36

34. First metasomal tergum with median longitudinal shallow impression from base to near apex. Parameres of males not modified, narrow .................................................................................................................................................. 35

-. First metasomal tergum with deep median longitudinal groove from base to near apex. Parameres of males modified, very broad ................................................................................................................................ L. striatus Barron, 1994 View in CoL

35. Ovipositor as long as three first terga of metasoma ( Fig. 16 View FIGURES 1 – 20 b), with apical teeth ( Fig. 16 View FIGURES 1 – 20 a). Mesosoma mostly black .............................................................................. L. caudatus (Thomson, 1883) View in CoL (= L. nasoni Davis, 1897 View in CoL syn. nov.)

-. Ovipositor shorter, without apical teeth ( Fig. 22 View FIGURE 21 – 40. 21 – 30 ). Mesosoma reddish-yellow .................. L. periclistae Barron, 1994 View in CoL

36. First metasomal tergum with distinct median longitudinal groove from base to near apex; between lateral longitudinal carina and groove, proximad spiracle, with distinct impression. Ovipositor with notch ( Fig. 25 View FIGURE 21 – 40. 21 – 30 )........................... .................................................................................................................................................. L. aquilus Barron, 1994 View in CoL

-. First metasomal tergum with shallow median impression, without median longitudinal carinae. Ovipositor with notch or without notch ( Figs 26, 30 View FIGURE 21 – 40. 21 – 30 ).......................................................................................................................... 37

37. Ovipositor with notch ( Fig. 26 View FIGURE 21 – 40. 21 – 30 ). Tarsal claws with two or three distinct teeth. Body of female mostly black. Head black, clypeus at apex, orbits reddish-brown. Metasomal terga black, third tergum in part yellow tinged reddish. Male with body dorsally mostly black, ventrally mostly yellow. Head black, face, orbits, clypeus yellow. Mesosoma black with yellow maculae. Metasomal terga black, apical terga in part yellow tinged reddish ................................... ............................................................................................................................................... L. convexus Barron, 1994 View in CoL

-. Ovipositor without notch ( Fig. 30 View FIGURE 21 – 40. 21 – 30 ). Tarsal claws with three fine teeth. Body of female and male black and reddishyellow. Head reddish-yellow, vertex, occiput, temple in part black. Metasomal terga reddish-yellow, first tergum at base black ................................................................................................................... L. truncatus (Provancher, 1888) View in CoL

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF