Mesoleptobasis cantralli Santos 1961

Garrison, Rosser W. & Ellenrieder, Natalia Von, 2009, Redefinition of Mesoleptobasis Sjöstedt 1918 with the inclusion of Metaleptobasis cyanolineata (Wasscher 1998) comb. nov. and description of a new species, Mesoleptobasis elongata (Odonata: Co, Zootaxa 2145, pp. 47-68: 55-56

publication ID

10.5281/zenodo.188653

persistent identifier

http://treatment.plazi.org/id/03FC87D3-EB0A-FF89-01B2-F8ED8719447E

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Plazi

scientific name

Mesoleptobasis cantralli Santos 1961
status

 

Mesoleptobasis cantralli Santos 1961 

Figs. 3View FIGURE 3 b, 4 b, 5 b, c, 6 a, 7 b, 10 b, 12 b, 14 b, 15 b, 16 b, 17 b, 18 b, 19 a, 21

Mesoleptobasis cantralli Santos 1961: 197  –200, 202 (description of 3 and Ƥ); — Davies & Tobin 1984: 77 (catalog); — Bridges 1994: VII. 43 (catalog); — Steinmann 1997: 288 (catalog); — Tsuda 2000: 39 (catalog); — Lencioni 2006: 160 (notes and illustrations from original description); — Heckman 2008: 393 (key and reproduction of illustrations from original description).

Types. Holotype (from Porto Velho, Rondônia, Brazil) in UMMZAbout UMMZ (not examined).

Specimens examined. Total: 5 3, 8 Ƥ. Brazil, Rondônia State: 1 paratype 3, Porto Velho (8 ° 46 'S, 63 ° 53 'W), 22 ii 1922, leg. J.H. Williamson & J.W. Strohm (RWG); 1 paratype Ƥ, same but 24 iv 1922 (RWG); 1 paratype Ƥ, same but ( UMMZAbout UMMZ); 1 paratype 3, same but 27 ii 1922 (RWG); 1 paratype Ƥ, same but 0 4 v 1922 (RWG); 2 paratypes 3, 1 paratype Ƥ, same but 14 v 1922 ( UMMZAbout UMMZ); 3 paratypes Ƥ, same but 16 v 1922 ( UMMZAbout UMMZ); Amazonas State: 1 3, 1 Ƥ, Rio Uaupés, Taraquá (3 ° 27 ' 15 ''S, 62 ° 51 ' 5 ''W), 14 viii 1964, leg. A.B.M. Machado & Pereira ( ABMM).

Diagnosis. Male prothorax with a medial bifurcate process with arms forming a transverse line between them ( Fig. 4 b; shared with M. elongata  and M. incus  ) and apices directed anteriorly ( Fig. 3View FIGURE 3 b; shared with M. acuminata  and M. cyanolineata  ); female prothorax lacking processes, with posterior margin slightly trilobate and medial lobe not surpassing lateral lobes posteriorly; lateral lobes not bent anteriorly ( Figs. 5 b, c; shared with M. elongata  ). Costal side of FW pt longer than basal side, its posterior margin slightly convex in both sexes ( Figs. 10View FIGURE 10 b, 12 b; shared with M. cyanolineata  , M. elongata  , and M. incus  ). WF CuA relatively short (shared with M. elongata  and M. incus  ), ending from one cell proximal to vein descending from subnodus ( Fig. 10View FIGURE 10 b) to level of vein descending from subnodus ( Fig. 12View FIGURE 12 b) in both sexes. Genital ligula in ectal view with distal margin deeply bifid and lacking lateral emarginations ( Fig. 14View FIGURE 14 b; shared with M. cyanolineata  , M. elongata  , and M. incus  ); in lateral view with basal lobe sclerotized, long, pointed, and directed posteriorly, and dorsal margin of lateral lobe with a single small sclerotized spine ( Fig. 15 b; shared with M. incus  ). Posterior margin of S 10 projected medio-dorsally, with a pair of postero-lateral small lobe-like processes ( Fig. 17View FIGURE 17 b, 19 a; shared with M. elongata  and M. incus  ). Male cercus lacking a membranous area dorsally (shared with M. cyanolineata  , M. elongata  , and M. incus  ), oblong, longer than wide ( Figs. 17View FIGURE 17 b, 19 a; unique), and usually armed at tip with a small externally recurved tooth ( Figs. 17View FIGURE 17 b, 19 a); in lateral view smoothly curved, with tip directed postero-ventrally ( Fig. 18 b, shared with M. acuminata  , M. elongata  , and M. incus  ); paraproct slender and narrower than half of S 10 height at base in lateral view ( Fig. 18 b, shared with M. elongata  and M. incus  ); base of paraproct usually with well developed thumb-like process ( Figs. 17View FIGURE 17 b, 18 b, 19 a; shared with M. elongata  ), which can be vestigial. Ovipositor surpassing tip of cerci for a distance subequal to length of cerci ( Fig. 16View FIGURE 16 b; shared with M. elongata  ).

Dimensions. Males (n 5; mean in parenthesis): Hw 17.0–18.0 (17.6); abdomen 33.0–36.0 (34.6); total length 39.0–41.0 (39.8). Females (n 8): Hw 18.5 –20.0 (19.1); abdomen 30.0–34.0 (31.9); total length 35.0–39.0 (37.5).

Remarks. The pair of M. cantralli  from Taraquá differs from the type series as follows: male lacks the small externally recurved tooth (as in Figs. 17View FIGURE 17 b, 19 a), and the thumb-like process at the base of paraproct is vestigial; female middle lobe of hind lobe of pronotum is more strongly developed, but still does not surpass lateral lobes. Wing venation, shape of male pronotal process, male cerci, and morphology of hind lobe of female pronotum as well as length of ovipositor (surpassing tip of cerci for a distance subequal to length of cerci as in Fig. 16View FIGURE 16 b) match those for the type series and indicate that this pair is correctly placed here.

Distribution. Amazonas and Rondônia State in Brazil; sympatric with M. incus  in the latter ( Fig. 21View FIGURE 21).

UMMZ

University of Michigan, Museum of Zoology

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Odonata

Family

Coenagrionidae

Genus

Mesoleptobasis

Loc

Mesoleptobasis cantralli Santos 1961

Garrison, Rosser W. & Ellenrieder, Natalia Von 2009

2009
Loc

Mesoleptobasis cantralli

Heckman 2008: 393
Lencioni 2006: 160
Tsuda 2000: 39
Steinmann 1997: 288
Davies 1984: 77Santos 1961: 197

1984