Alcathousiella polyrhaphoides
Maes et al . 2010: 394
Swift et al . 2010: 35
A review of the genus Alcathousiella Monné, 2005 (Coleoptera, Cerambycidae)
Nascimento, Francisco E. de L.
Monné, Miguel A.
Wappes, James E.
European Journal of Taxonomy
2021
2021-06-28
757
1
37
49
BJHVL
Nascimento & Monné & Wappes, 2021
Nascimento & Monné & Wappes
2021
[603,887,1001,1028]
Insecta
Cerambycidae
Alcathousiella
Animalia
Coleoptera
3
40
Arthropoda
species
giesberti
sp. nov.
urn:lsid:zoobank.org:act: 88FB5CC0-92B6-498D-A7A9-5C2A99C25F29 Figs 1–4, 12, 16–19
Alcathousiella polyrhaphoides– Maes et al. 2010: 394. — Swift et al. 2010: 35.
Differential diagnosis This species is characterized by the triangularly projected ( Fig. 16) outer angle of elytra, protarsomeres in males with less dense, elongate blackish setae ( Fig. 12), and by the less thickened femoral claves.
Etymology The epithet is a noun in the genitive case to honour and recognize Edmund F. Giesbert (1931 –1999), a remarkably talented, self-taught cerambycid taxonomist and artist.
Material examined Holotype COSTA RICA• ♂; Puntarenas, Monteverde; 1 Feb. 1978; E. Giesbertleg.; FSCA. Paratypes COSTA RICA• 2 ♀♀; same collection data as for holotype; FSCA• 1 ♀; same collection data as for holotype; ACMT• 1 ♂; same collection data as for holotype; 22–23 May 1974; FSCA• 3 ♂♂, 1 ♀; same collection data as for holotype; 3–5 Jun. 1974; FSCA• 2 ♂♂, 1 ♀; same collection data as for holotype; 1–3 Jun. 1978; FSCA• 1 ♂; same collection data as for holotype; 12–16 Jun. 1978; ACMT• 1 ♂; same collection data as for holotype; 4–6 Jun. 1980; FSCA• 1 ♂; same collection data as for holotype; 23–26 Dec. 1982; FSCA• 1 ♂; same collection data as for holotype; 24 Dec. 1985; FSCA• 1 ♂; same collection data as for holotype; 8 Jun. 1986; FSCA• 1 ♂; same collection data as for holotype; 24 Feb. 1985; FSCA• 1 ♂; same collection data as for holotype; 23–27 May 1987; FSCA• 1 ♀; same collection data as for holotype; 19 Feb. 1988; F.D. Parkerleg.; LGBC• 1 ♀; same collection data as for holotype; 19–26 May 1988; FSCA• 1 ♀; same collection data as for holotype; 4–9 Jan. 1989; F.T. Hovoreleg.; LGBC• 1 ♂; same collection data as for holotype; 12–15 Jun. 2002; Chemsakand Hovoreleg.; LGBC• 1 ♀; Pension Quetzal; 28 May 1992; Lingafelter, Jamesonand Ratcliffeleg.; lighting; SWLC• 2 ♂♂; San Luis, Monteverde; 3900 ft; 12–13 May 1996; J. Wappesleg.; ACMT• 1 ♀; same collection data as for preceding; 12–15 Jun. 1996; F.T. Hovoreleg.; CSCA• 1 ♂; same collection data as for preceding; 7 Jan. 1986; W. Haberleg.; EMEC• 1 ♀; same collection data as for preceding; 1 Feb. 1986; EMEC• 1 ♂; Alajuela Province, 8 kmN of Vara Blanca, Volcan Poas; 1500 ma.s.l., 11 May 1985; FSCA• 1 ♀; same collection data as for preceding; EMEC• 1 ♀; Catargo, Turrialba, CATIE; Dec. 1990; F.T. Hovoreleg.; LGBC• 2 ♂♂; 2 kmE of Monteverde, 1500 ft; 31 Mar. 1992; J.D. McCartyleg.; LGBC• 1 ♂; Alajuela Province, Bosque Nubosa, Monteverde; 8–11 Jan. 2005; C. Neumanleg.; LGBC. Figs 1–8. 1–4. Alcathousiella giesberti sp. nov.Holotype, ♂ (FSCA). 1. Dorsal habitus. 2. Ventral habitus. 3. Lateral habitus. 4. Head, frontal view. 5–8. Alcathousiella polyrhaphoides White, 1855. Males from Bolivia (FSCA). 5. Head, frontal view. 6. Dorsal habitus. 7. Ventral habitus. 8. Lateral habitus. PANAMA• 1 ♂, 1 ♀; Chiriqui, Volcan; 5500 ft; 11 Jan. 1964; S.L.W.leg.; BYUC• 1 ♂; Finca Hartman, Ojo de agua; 8°51′41″ N, 82°44′36″ W; 1500+ m a.s.l., 11–14 Apr. 2018; B.T. Raberleg.; DJHC• 1 ♂; near Volcan town Totumas Mountain, Cloud forest; 8º53′6.01″ N, 82º41′1.32″ W; 1920 ma.s.l.; May–Jun. 2018; A. Kozlovand Kovalevaleg.; MZSP• 1 ♀; same collection data as for preceding; 1920–2200 ma.s.l.; May–Jun. 2019; A. Kozlovand Kovalevaleg; MZSP. Additional material NICARAGUA• 1 ♂; Jinotega, San Rafael del Norte, Res. Sil. Priv. El Jaguar; 20–29 May 2017; P. Roucheleg.; AACP.
Description Holotype maleMEASUREMENTS (in mm). Total length, 8.3; prothorax length, 1.5; prothorax width, 2.4; elytral length, 6.0; humeral width, 3.1. COLORATION. Integument mostly brownish; posterior half of prothorax sides and femoral claves dark brown; margin of abdominal ventrites, mouthparts (except mandibles, dark brown, blackish toward extremities) and femoral peduncles yellowish brown; posterior third of elytra yellowish brown. HEAD. Frons finely densely, punctate; with moderately dense whitish-yellow pubescence, nearly obscuring integument; vertex with pubescence and punctures as on frons. Lower eye lobes about 1.3 the genal length; lobes connected by 3–4 rows of ommatidia. Upper eye lobes separated by twice upper eye lobe width. Labrum with moderately dense yellowish pubescence, not obscuring integument. Gulamentum sparsely punctate and minutely, sparsely pubescent. Antennae reaching elytral apex at the middle of antennomere V; scape long, slightly exceeding posterior margin of prothorax; with dense yellowish pubescence partially obscuring integument. Pedicel slightly widened posteriorly. Antennomeres slightly widened apically, evenly covered by yellowish pubescence. Antennal formula based on antennomere III: scape = 1.00; pedicel = 0.18; IV = 0.70; V = 0.50; VI = 0.50; VII = 0.40; VIII = 0.40; IX = 0.40; X = 0.37; XI = 0.30. THORAX. Prothorax, across lateral tubercles, about 1.5 times as wide as long; pronotum coarsely punctate between tubercles; surface mostly covered by yellowish pubescence, especially between tubercles of the disk; posterior half with four circular spots of brown pubescence: two small laterally, near the middle and two larger behind posterior lateral tubercles. Sides with longitudinal fascia of brownish pubescence. Prosternal process ¼ width of procoxal cavity. Mesoventral process about 0.5 the diameter of mesocoxal cavity; greyish pubescent. Metaventrite minutely punctate; broad triangular area centrally with dense erect yellowish setae, obscuring integument; laterally with dense yellowish pubescence. Mesanepisternum, mesepimeron, metanepisternum and metepimeron with yellowish pubescence interspersed by brownish pubescence. Scutellum truncate posteriorly, covered with dark pubescence laterally and medially with a central yellowish pubescent area. Figs 9–18. 9–11, 3–15. Alcathousiella polyrhaphoides( White, 1855) (FSCA). 9–10. Elytral pubescence pattern. 9. Male 1. 10. Male 2. 11. Detail of protarsomeres. 13. Slide of one of the syntype specimens (BMNH), deposited at Coleção de Imagens de material-tipo J.S. Moure (DZUP). 14. Male antennomere III with internal spine. 15. Detail of distal ⅓ of elytra. 12, 16–18. A. giesberti sp. nov.(FSCA). 12. Detail of protarsomeres. 16. Detail of distal third of elytra. 17. Male genitalia in lateral view. 18. Schemes of male genitalia: A= median lobe in dorsal view; B = median lobe in lateral view; C = tegmen in dorsal view; D = tegmen in lateral view; E = sternite VIII. Abbreviations: ap = apophysis; ar = arms; ba = basal apophyses; pa = parameres; ri = ring part; ro = roof; ts = tegmen struts. ELYTRA. Sides gradually, slightly convergent at anterior two thirds, posterior third more strongly convergent toward apex; humeri slightly projected. Elytral suture longitudinally sulcate, apex strongly projected laterally much less so at sutural angle. Centro-basal crest elevated, with thick erect brownish tuft of setae apically. Surface, coarsely punctate, punctures sparser at posterior half. Pubescence (from anterior to posterior) as follows: greyish white band from humeri converging posteriorly towards the suture at elytral middle (not reaching it), then with a narrowed band converging anteriorly (reaching the suture); narrower band from humeri converging posteriorly at anterior third, forming an uneven triangular shaped area with brownish pubescence; large greyish band diverging from middle to epipleura at posterior third; posterior third mostly covered by yellowish pubescence; with irregular areas of greyish pubescence, especially toward apex; posterior elytral fifth with M-shaped area of brownish band. LEGS. Tibiae with greyish pubescence proximally, with brownish pubescence at apical third. Protarsi densely fringed laterally with brownish setae; metatarsomere I slightly longer than the remaining tarsomeres together. ABDOMEN. Ventrites with sparse greyish pubescence. MALE GENITALIA. Tegmen 3.8 times as long as wide ( Fig. 18C–D). Tegminal ring about half the total tegmen length; in lateral view, strongly twisted downward at posterior third ( Fig. 18D); strongly triangularly notched towards tegminal struts; tegminal struts about a third of the total tegmen length; parameres about 0.1 the total tegmen length, contiguous and parallel to each other; apex and ventral region with erect setae. Median lobe 5.7 times longer than wide; 1.15 times as long than tegmen; strongly arched in lateral view ( Fig.18A–B), basal apophyses 0.57 times the total median lobe length. Sternite VIII with apophysis 1.6 times as long as length of arm ( Fig. 18E). Range of measures(in mm, male/female) Total length, 8.3–10.5 /8.5–11.7; prothorax length, 1.5–2.0 /1.5–2.2; prothorax width, 2.4–3.1/ 2.2–3.4; elytral length, 6.0–7.5 / 6.4–8.6; humeral width, 3.1–4.0 / 3.1–4.5.
Distribution Nicaragua, Costa Ricaand Panama( Fig. 19).
Remarks Alcathousiella giesberti sp. nov.and A. polyrhaphoideshave rather similar pubescent elytral patterns. However, the new species can be differentiated from the latter by its strongly triangularly projected outer angle of the elytra (thorn shaped), by the male protarsomeres less densely edged with bristly setae, which is shorter and brownish; and by the less thickened femoral claves. In A. polyrhaphoidesthe outer angle of elytral apices is triangularly projected ( Fig. 15), the protarsomeres in males have denser, longer blackish setae ( Fig. 11), and the femoral claves are thicker. Besides morphological their geographical distribution also differs. Alcathousiella giesberti sp. nov.is restricted to Central America, while A. polyrhaphoidesoccurs in South America ( Fig. 19). By the elytral apex of the species identified and figured as A. polyrhaphoidesby Maes et al.(2010), it is possible to note that this species is actually A. giesberti sp. nov.Likewise, the species identified as A. polyrhaphoidesby Swift et al.(2010)for Costa Rica, is A. giesberti sp. nov.(These specimens are figured at Bezark 2020). In a specimen from Panama, the elytral apex projection is less acute (similar to A. polyrhaphoides), however, the length and density of the protarsomeres setae and the thickness femoral claves, clearly indicate that it is the new species. The genitalia morphology of males of the two species is extremely similar and characters have not been found to separate them.
3312829330
[189,1154,1579,1606]
1978-02-01
FSCA
E. Giesbert
Costa Rica
Monteverde
3
40
1
1
Puntarenas
holotype
3312829316
[189,990,1680,1707]
1978-02-01
FSCA
E. Giesbert
Costa Rica
COSTA RICA
3
40
2
2
Puntarenas
paratype
3312829326
1978-02-01
ACMT
E. Giesbert
Costa Rica
Monteverde
3
40
1
1
Puntarenas
paratype
3312829305
[411,1181,1715,1742]
1974-05-22
1974-05-23
1974-05-22
FSCA
E. Giesbert
Costa Rica
Monteverde
3
40
1
1
Puntarenas
paratype
3312829338
1974-06-03
1974-06-05
1974-06-03
FSCA
E. Giesbert
Costa Rica
Monteverde
3
40
4
1
3
Puntarenas
paratype
3312829333
1978-06-01
1978-06-03
1978-06-01
FSCA
E. Giesbert
Costa Rica
Monteverde
3
40
3
1
2
Puntarenas
paratype
3312829343
[483,1311,1785,1812]
1978-06-12
1978-06-16
1978-06-12
ACMT
E. Giesbert
Costa Rica
Monteverde
3
40
1
1
Puntarenas
paratype
3312829319
1980-06-04
1980-06-06
1980-06-04
FSCA
E. Giesbert
Costa Rica
Monteverde
3
40
1
1
Puntarenas
paratype
3312829329
1982-12-23
1982-12-26
1982-12-23
FSCA
E. Giesbert
Costa Rica
Monteverde
3
40
1
1
Puntarenas
paratype
3312829351
[505,1252,1856,1883]
1985-12-24
1982-12-26
1982-12-23
FSCA
E. Giesbert
Costa Rica
Monteverde
3
40
1
1
Puntarenas
paratype
3312829336
1986-06-08
1982-12-26
1982-12-23
FSCA
E. Giesbert
Costa Rica
Monteverde
3
40
1
1
Puntarenas
paratype
3312829346
1985-02-24
1982-12-26
1982-12-23
FSCA
E. Giesbert
Costa Rica
Monteverde
3
40
1
1
Puntarenas
paratype
3312829304
[357,1135,1926,1953]
1987-05-23
1987-05-27
1987-05-23
FSCA
E. Giesbert
Costa Rica
Monteverde
3
40
1
1
Puntarenas
paratype
3312829331
1988-02-19
1987-05-27
1987-05-23
LGBC
F. D. Parker
Costa Rica
Monteverde
3
40
1
1
Puntarenas
paratype
3312829318
1988-05-19
1988-05-26
1988-05-19
FSCA
E. Giesbert
Costa Rica
Monteverde
3
40
1
1
Puntarenas
paratype
3312829307
1989-01-04
1989-01-09
1989-01-04
LGBC
F. T. Hovore
Costa Rica
5
42
Monteverde
3
40
1
1
Puntarenas
paratype
3312829313
[292,1398,265,292]
2002-06-12
2002-06-15
2002-06-12
LGBC
Chemsak & Hovore
Costa Rica
Monteverde
5
42
1
1
Puntarenas
paratype
3312829314
[206,1300,300,327]
1992-05-28
lighting
SWLC
Lingafelter & Jameson & Ratcliffe
Costa Rica
Pension Quetzal
5
42
1
1
paratype
3312829312
1996-05-12
1996-05-13
1996-05-12
ACMT
J. Wappes
Costa Rica
1189
Monteverde
San Luis
5
42
2
2
paratype
3312829355
1996-06-12
1996-06-15
1996-06-12
CSCA
F. T. Hovore
Costa Rica
1189
Monteverde
San Luis
5
42
1
1
paratype
3312829350
1986-01-07
1996-06-15
1996-06-12
EMEC
W. Haber
Costa Rica
1189
Monteverde
San Luis
5
42
1
1
paratype
3312829309
[627,1380,406,432]
1986-02-01
1996-06-15
1996-06-12
EMEC
W. Haber
Costa Rica
1189
Monteverde
San Luis
5
42
1
1
paratype
3312829353
[189,1321,441,468]
1985-05-11
FSCA
Costa Rica
1500
Volcan Poas
5
42
1
1
Alajuela Province
paratype
3312829325
1985-05-11
EMEC
Costa Rica
1500
Volcan Poas
5
42
1
1
Alajuela
paratype
3312829341
1990-12
LGBC
F. T. Hovore
Costa Rica
Turrialba
Catargo
5
42
1
1
paratype
3312829337
[356,1316,511,538]
1992-03-31
LGBC
J. D. McCarty
Costa Rica
457
Monteverde
5
42
2
2
paratype
3312829348
2005-01-08
2005-01-11
2005-01-08
LGBC
C. Neuman
Costa Rica
Monteverde
Bosque Nubosa
5
42
1
1
Alajuela Province
paratype
3312829323
[189,1137,612,639]
1964-01-11
BYUC
S. L. W.
Panama
1676
Volcan
5
42
2
1
1
Chiriqui
3312829340
2018-04-11
2018-04-14
2018-04-11
DJHC
B. T. Raber
Panama
8.861389
Ojo de agua
21
-82.74333
Finca Hartman
5
42
1
1
3312829349
2018-05
2018-06-31
2018-05
MZSP
A. Kozlov & Kovaleva
Panama
Volcan town
1920
8.885003
Cloud forest
1
-82.6837
Totumas Mountain
5
42
1
1
3312829324
2019-05
2019-06-31
2019-05
MZSP
A. Kozlov & Kovaleva
Panama
Volcan town
2060
8.885003
Cloud forest
1
-82.6837
Totumas Mountain
5
42
1
1
3312829322
2017-05-20
2017-05-29
2017-05-20
AACP
Res. Sil. Priv. El Jaguar & P. Rouche
Nicaragua
San Rafael del Norte
5
42
1
1
Jinotega