Purenleon, , Stange, 2002

Machado, Renato Jose Pires & Tavares, Leon Gustavo de Miranda, 2020, Notes on the Brazilian species of Purenleon Stange (Neuroptera: Myrmeleontidae), with description of two new species, Insect Systematics & Evolution 51 (1), pp. 62-80 : 78

Identification key to the South American species of Purenleon

1. Mid tibia greatly swollen ( Fig. 9d ), distinctly broader than foretibia; basitarsus of hind leg about twice as long as greatest diameter; posterior margin of sternite VII in the female elongated laterally ( Fig. 10f ), like a small gonapophyses (tibialis gr oup)…….….….….….….….…….….….….….….….….….….….….….…...2

1’. Mid tibia weakly swollen ( Fig. 2d ), about equal in breadth to foretibia; basitarsus of hind leg at least 2.5 times longer than greatest diameter; sternite VII of female not produced laterally ( Fig. 4b ) (bistictus group)….….….….….….….….….….5

2. Thorax mostly dark brown ( Fig. 7d )…….….….….….….….….….….….….…. 3

2’. Thorax mostly yellow ( Fig. 9b )............................................................................ 4

3. Forewing with small brown marks on the base of most radial crossveins; mid tibia mostly dark brown with light brown areas; male parameres not dorsally enlarged and with apex sclerotized and rough; female with pregenital plate reduced…….….….….….….….….….….….….….….….….….….. P.fernandezi

3’. Forewing without small brown marks on the base of most radial crossveins ( Fig. 9b ); mid tibia mostly yellow with dark brown marks ( Fig. 9d ); male parameres dorsally enlarged (forming a dome) ( Fig. 10b ) and with apex not sclerotized; female pregenital plate large and ventrally extended ( Fig. 10f )…….….….. P. rafaeli sp. n.

4. Pronotum with several elongate white setae at lateral margin, at least subequal in length to those on forecoxa; mid tibia mostly dark brown, with few yellow areas; male mediuncus absent and paramere not folding apically …….….….…. P. tibialis

4’. Pronotum with few elongate white setae at lateral margin, shorter than those on forecoxa; mid tibia yellow with small rounded dark marks on the base of the long setae ( Fig. 7b ); male mediuncus present and paramere folding apically ( Fig. 8d )…….….….….….….….….….….….….….….….….. P. limeirai sp. n.

5. Forewing with posterior Banksian line clearly evident; hind wing with a longitudinal apical brown mark ( Fig. 6 )…….….….….….….….….….….….….….. P.nebulosus

5’. Forewing posterior Banksian line not evident; hind wing without a longitudinal apical brown mark ( Fig. 3 ) …….….….….….….….….….….….….….….…..6

6. Area between antennae yellow ( Fig. 2a ); forefemur set with some short black setae; male ectoproct with postventral lobe ( Fig. 3 )…….….….….….….….….. P. cautus

6’. Area between antennae dark brown; forefemur covered with many medium sized black or white setae; male ectoproct without postventral lobe …….….….….…..7

7. Pronotum with several elongate white setae at lateral margin, at least subequal in length to those on forecoxa; male paramere with apex without a concave excavation…….….….….….….….….….….….….….….….….…..… P. andinus

7’. Pronotum without elongate white setae at lateral margin, sometimes one or two moderately long white setae; male paramere with an apical concave excavation…….….….….….….….….….….….….….….….….…….. P. clavatus

Figures

Fig. 9. Purenleon rafaeli sp. n.: a) head, anterior view; b) thorax, dorsal view; c) wings; d) mid tibia. Scale bar = 1mm.

Fig. 10. Purenleon rafaeli sp. n.: a) male terminalia, lateral view; b) male genitalia, lateral view; c) male genitalia, posteroventral view; d) male genitalia, posterior view; e) female terminalia, lateral view; f) female pregenital plate, lateral view; g) female pregenital plate, posterior view; h) female terminalia, posterior view. E = ectoproct; G = gonarcus; LG = lateral gonapophyses; M = mediuncus; P = paramere; PG = posterior gonapophyses; PP = pregenital plate; S = sternite; T = tergite. Scale bar = 0.5mm.

Fig. 2. Purenleon cautus (Walker): a) head, anterior view; b) thorax; dorsal view; c) wings; d) mid tibia. Scale bar = 1mm. A = Anal; Cu = Cubital; Mp = Medial posterior; Ra = Radial anterior; Rs = Radial sector; Sc = Subcosta. Scale bar = 10mm. Photos provided by Benjamin Price (BMNH).

Fig. 4. Purenleon cautus (Walker) female terminalia: a) lateral view; b) ventral view. E = ectoproct; GP = gonapophyseal plate; LG = lateral gonapophyses; PG = posterior gonapophyses; S = sternite; T = tergite. Scale bar = 1mm.

Fig. 7. Purenleon limeirai sp. n.: a) head, anterior view; b) mid tibia; c) wings; d) thorax, dorsal view. Scale bar = 1mm.

Fig. 8. Purenleon limeirai sp. n. male: a) terminalia, lateral view; b) genitalia, lateral view; c) genitalia, posteroventral view; d) genitalia, posterodorsal view. E = ectoproct; G = gonarcus; M = mediuncus; P = paramere; S = sternite; T = tergite. Scale bar = 0.5mm.

Fig. 6. Lectotype of Purenleon nebulosus (Navás 1923): a) habitus dorsal; b) labels. Photos provided by André Nel (MNHN).

Fig. 3. Holotype of Purenleon cautus (Walker): a) habitus dorsal; b) labels. Scale bar = 10mm. Photos provided by Benjamin Price (BMNH).