Ptychoderes, sensu Schoenherr, 1833

Mermudes, José Ricardo M. & Napp, Dilma Solange, 2006, Revision and cladistic analysis of the genus: Ptychoderes Schoenherr, 1823 (Coleoptera, Anthribidae, Anthribinae, Ptychoderini), Zootaxa 1182 (1), pp. 1-130 : 20-24

publication ID

https://doi.org/ 10.11646/zootaxa.1182.1.1

publication LSID

lsid:zoobank.org:pub:56758062-FF9C-448F-98AE-92C3EC71022C

persistent identifier

https://treatment.plazi.org/id/A02F87F5-FF8F-F974-1730-FA9BFAA7FCD7

treatment provided by

Felipe

scientific name

Ptychoderes
status

 

Key to species of Ptychoderes

1 Pronotum rugose throughout ( Figs. 241–245, 247–249 View FIGURES 239–250 ) ............................................. 2

­ Pronotum not rugose or rugae restricted to definite areas ( Figs. 246, 250 View FIGURES 239–250 ) ............... 15

2 Rostrum, sides of the head, vertex and pronotum clothed with a pale vitta of dense, yellowish scales, reaching humeri ( Fig. 220 View FIGURES 215–220 ). Pronotum convex with a weak median prominence ( Fig. 248 View FIGURES 239–250 ). Mexico to Costa Rica........................ P. bivittatus Jordan, 1894

­ Dorsal vestiture otherwise ( Figs. 208–219 View FIGURES 208–214 View FIGURES 215–220 , 221–227 View FIGURES 221–227 ). Pronotum with a central depression provided with a median tubercle ( Figs. 241–247, 249–250 View FIGURES 239–250 ) ................................ 3

3 Elytra with prominent anteapical tubercles ................................................................. 4

­ Elytra either without or with poorly developed anteapical tubercles .......................... 7

4 Pale dorsal vitta with whitish scales intermingled with pale olivaceous­green scales (never light­brown). Colour of the sides of pronotum and epipleura weakly contrasting with dorsal vitta ( Figs. 221 View FIGURES 221–227 ). Prosternal furrow shallow, sinuous, strongly curved in front of procoxae, with a subtriangular projection at middle not interrupting the furrow ( Fig. 260 View FIGURES 251–262 ). Male ventrite I with a centered, developed setiferous sex patch. French Guiana, Colombia, Peru, Brazil (Amapá, Acre, Rondônia, Amazonas, Pará, Ceará, Mato Grosso, Goiás, Rio de Janeiro, São Paulo, Paraná, Santa Catarina) and Bolivia. ..................................................................................................... P. callosus Jekel, 1855

­ Pale dorsal vitta with whitish scales intermingled with light­brown scales (never green). Sides of pronotum and epipleura with a vitta of dense, dark­brown scales ( Figs. 217, 219 View FIGURES 215–220 , 222 View FIGURES 221–227 ). Prosternal furrow otherwise. Male ventrite I without setiferous sex patch; if present then never centered ..................................................................... 5

5 Elytra dorsally flattened, basal gibbosities and rugae almost inconspicuous ( Figs. 217 View FIGURES 215–220 ). Male: antennal segments III – IX dorsally sulcate; ventrite I without setiferous sex patch. Peru, Brazil (Bahia, Pernambuco, Goiás, Minas Gerais, Espírito Santo, São Paulo, Paraná, Santa Catarina), Bolivia and Paraguay............. P. depressus Jekel, 1855

­ Elytra subconvex, with basal gibbosities; surface conspicuously rugose from base to middle of elytra ( Figs. 219 View FIGURES 215–220 , 222 View FIGURES 221–227 ). Male: antennal segments cylindrical, not sulcate; ventrite I with setiferous sex patch .............................................................................. 6

6 Pale dorsal vitta contrasting with colour of sides ( Fig. 222 View FIGURES 221–227 ). Rostrum with dense grayish­white scales. Antennal segment XI elongate. Prosternal furrow shallow, sinuous, with a tiny prosternal projection at middle ( Fig. 259 View FIGURES 251–262 ). Male with a developed, setiferous sex patch near the intercoxal process ( Fig. 237 View FIGURES 228–238 ). Mexico to Colombia.................. ................................................................................................ P. rugicollis Jordan, 1895

­ Pale dorsal vitta weakly contrasting with colour of sides ( Fig. 219 View FIGURES 215–220 ). Rostrum with dense light­brown scales. Antennal segment XI short. Prosternal furrow deep, straight, without prosternal projection at middle (as in Fig. 253 View FIGURES 251–262 ). Male with a minute setiferous sex patch near posterior margin ( Fig. 236 View FIGURES 228–238 ). Costa Rica, Panama, Colombia, Venezuela, Guyana, French Guiana, Brazil (Mato Grosso, Goiás, Espírito Santo, Rio de Janeiro, São Paulo, Paraná, Santa Catarina, Rio Grande do Sul), Paraguay and Argentina........ ........................................................................................................ P. mixtus Jekel, 1855

7 Prosternal furrow shallow, narrow, sinuous with a minute prosternal projection at middle ( Fig. 257 View FIGURES 251–262 ) ............................................................................................................... 8

­ Prosternal furrow very conspicuous, without middle projection ( Figs. 253, 254 View FIGURES 251–262 )........ 9

8 Prothorax subparallel at sides, conspicuously longer than wide ( Figs. 211 View FIGURES 208–214 , 243 View FIGURES 239–250 ). Elytra with basal gibbosities almost inconspicuous; anteapical tubercles weakly prominent. Mesosternal process rounded at apex. Male antennae elongate, reaching elytral apices ( Fig. 211 View FIGURES 208–214 ). Suriname, Colombia and Brazil (Mato Grosso) P. longicollis Jordan, 1894

­ Prothorax almost rounded at sides, conspicuously wider than long ( Figs. 208 View FIGURES 208–214 , 241 View FIGURES 239–250 ). E lytra with prominent basal gibbosities; anteapical tubercles absent. Mesosternal process acuminate at apex. Male antennae short, reaching humeri ( Fig. 208 View FIGURES 208–214 ). French Guiana and Brazil (Mato Grosso) ................................................. P. crustatus Frieser, 1988

9 Prosternal furrow wide, anterior margin curved ( Fig. 253 View FIGURES 251–262 ). Male: antennal segments IV – IX dorsally sulcate; rostrum weakly impressed at sides with vestigial carinae. Female: antennal segments IX –X conspicuously depressed. French Guiana, Brazil (Amapá, Rondônia, Amazonas, Pará , Mato Grosso) and Bolivia................................... ............................................................................................... P. virgatus Fåhraeus, 1839

­ Prosternal furrow narrow, anterior margin straight ( Fig. 254 View FIGURES 251–262 ). Male: antennal segments not sulcate (or IX and X depressed); rostrum conspicuously carinated and impressed at sides. Female: antennal segments IX and X barely impressed or not ........................ 10

10 Pale dorsal vitta with predominance of green and whitish scales (brownish scales never predominant) ( Figs. 209–210, 212–213 View FIGURES 208–214 ) ......................................................... 11

­ Pale dorsal vitta coloured otherwise, never with predominance of green scales ( Figs. 214–216 View FIGURES 208–214 View FIGURES 215–220 ) ......................................................................................................... 13

11 Pale dorsal vitta with predominance of whitish scales intermingled with pale olivaceous­green scales slightly denser on elytra ( Fig. 209 View FIGURES 208–214 ). Elytra slightly wider behind middle, sides clothed with pale olivaceous­green scales concolorous with the dorsal scales (209, 230). Colombia and Brazil (Pará, Mato Grosso) ...... P. brevis Jordan, 1894

­ Pale dorsal vitta with predominance of dark­green scales intermingled with scarce whitish scales ( Figs. 210, 212–213 View FIGURES 208–214 ). Elytra slightly narrowed apicad from base, sides clothed with scales darker than dorsal scales ............................................................. 12

12 Prothorax almost rounded ( Figs. 212–213 View FIGURES 208–214 , 244 View FIGURES 239–250 ). Pronotal depression divided by a transverse tubercle ( Fig. 244 View FIGURES 239–250 ). Elytra without anteapical tubercles ( Figs. 212–213 View FIGURES 208–214 ). Female: antennal club short. Costa Rica, Colombia, French Guiana, Brazil (Amapá, Amazônia, Pará, Mato Grosso) and Bolivia............................... P. jordani Frieser, 1959

­ Prothorax slightly convergent anteriorly from antebasal carina ( Fig. 210 View FIGURES 208–214 ). Pronotal depression with a median rounded tubercle ( Fig. 210 View FIGURES 208–214 ). Elytra with weakly prominent anteapical tubercles ( Fig. 210 View FIGURES 208–214 ). Female: antennal club elongate and thickened ( Fig. 210 View FIGURES 208–214 ). French Guiana and Brazil (Pará) ..................... P. jekeli Mermudes & Napp, 2004 .

13 Pale dorsal vitta with predominance of greenish­ochreous scales intermingled with scarce whitish scales ( Fig. 214 View FIGURES 208–214 ). Prothorax almost rounded ( Figs. 214 View FIGURES 208–214 , 244 View FIGURES 239–250 ). Male with setiferous sex patch on ventrite I. Costa Rica, Colombia, French Guiana, Brazil (Amapá, Amazônia, Pará, Mato Grosso) and Bolivia.................................................... ................................................................................ P. jordani Frieser, 1959 (pale form)

­ Pale dorsal vitta with predominance of whitish scales intermingled with scarce brownish scales ( Figs. 215–216 View FIGURES 215–220 ). Prothorax slightly convergent anteriorly from antebasal carina ( Figs. 215–216 View FIGURES 215–220 ). Male without setiferous sex patch ........................................ 14

14 Prosternal furrow with a triangular, thickened, strongly developed prosternal projection at middle, reaching the intercoxal process; base of the projection always wider than the intercoxal process ( Fig. 255 View FIGURES 251–262 ). Prosternum with moderately coarse, shallow punctures, with a weakly impressed area, coarsely, confluently punctate on each side of the disk ( Fig. 255 View FIGURES 251–262 ). Brazil (Amapá, Rondônia, Amazonas, Pará, Mato Grosso) and Bolivia................................................................... P. magnus Mermudes & Napp, 2004

­ Prosternal furrow with a short prosternal projection at middle, not reaching the inter­ coxal process; base of the projection, at most, as wide as the intercoxal process ( Fig. 256 View FIGURES 251–262 ). Prosternum with dense, coarse, deep punctures ( Fig. 256 View FIGURES 251–262 ). Brazil (Pernambuco, Bahia, Espírito Santo) ............................................................... P. obsoletus Jekel, 1855

15 Pronotum transversely rugose at sides and on the median tubercle (rugae absent inside the central depression) (as in Fig. 246 View FIGURES 239–250 ) ...................................................................... 16

­ Pronotum not rugose or with rugae only inside the central depression (as in Fig. 250 View FIGURES 239–250 ) ..................................................................................................................................... 18

16 Prothorax slightly convergent anteriorly from antebasal carina ( Fig. 217 View FIGURES 215–220 ). Elytra dorsally flattened; basal gibbosities and rugae almost inconspicuous; with anteapical tubercles (from prominent to weakly evident). Male: antennal segments III – IX sulcate. Peru, Brazil (Bahia, Pernambuco, Goiás, Minas Gerais, Espírito Santo, São Paulo, Paraná, Santa Catarina), Bolivia and Paraguay........................ P. depressus Jekel, 1855

­ Pronotum almost rounded ( Figs. 208, 212–214 View FIGURES 208–214 , 241, 244 View FIGURES 239–250 ). Elytra convex, with prominent basal gibbosities and evidently rugose; anteapical tubercles absent. Male: antennal segments III–IX not sulcate .................................................................................. 17

17 Pale dorsal vitta with predominance of green or greenish­ochreous (pale form) scales intermingled with scarce whitish scales ( Figs. 212–214 View FIGURES 208–214 ). Antebasal carinae of prothorax curved ( Figs. 212–214 View FIGURES 208–214 , 244 View FIGURES 239–250 ). Male with setiferous sex patch on ventrite I. Costa Rica, Colombia, French Guiana, Brazil (Amapá, Amazônia, Pará, Mato Grosso), Bolivia.................................................................................................... P. jordani Frieser, 1959

­ Pale dorsal vitta with predominance of whitish scales intermingled with brownish scales, sometimes sparse (never with green scales) ( Fig. 208 View FIGURES 208–214 ). Antebasal carinae of prothorax straight ( Figs. 208 View FIGURES 208–214 , 241 View FIGURES 239–250 ). Male lacking setiferous sex patch. French Guiana and Brazil (Mato Grosso) ........................................................ P. crustatus Frieser, 1988

18 Pronotum rugose only inside the depression. Elytra with prominent anteapical tubercles ( Figs. 225–227 View FIGURES 221–227 ) .................................................................................................. 19

­ Pronotum lacking rugae (if present, only in front of the tubercle). Elytra lacking anteapical tubercles ( Figs. 223–224 View FIGURES 221–227 ) .................................................................................. 20

19 Pronotum rugose inside the depression, in front and behind the median tubercle. Anterior margin of both metasternum and intercoxal process of ventrite I deeply furrowed. Ventral body surface with yellow pilosity throughout ( Fig. 261 View FIGURES 251–262 ). Mexico to Brazil (Amapá, Amazonas, Pará, Acre, Rondônia, Ceará, Mato Grosso, Mato Grosso do Sul, Goiás, Bahia, Minas Gerais, Espírito Santo, Rio de Janeiro, São Paulo) and Paraguay............................................................................................ P. nebulosus ( Olivier, 1795)

­ Pronotum rugose only behind the median tubercle ( Fig. 250 View FIGURES 239–250 ). Furrow of the anterior margin of both metasternum and intercoxal process of ventrite I, vestigial. Ventral body surface with a median vitta of sparsely brownish pilosity (seeming subglabrous) ( Fig. 262 View FIGURES 251–262 ). Brazil (Espírito Santo, Rio de Janeiro, São Paulo, Paraná, Santa Catarina) ............................................................................................ P. elongatus ( Germar, 1824) 20 Pale dorsal vitta with dense dark­green scales intermingled with whitish scales (predominantly with greenish­ochreous scales in pale forms) ( Fig. 223 View FIGURES 221–227 ). Pronotal depression divided by a transverse median tubercle ( Fig. 223 View FIGURES 221–227 ). Prosternal furrow with a small median projection, not interrupting furrow ( Fig. 258 View FIGURES 251–262 ). Trinidad and Tobago, Colombia, Venezuela, French Guiana, Brazil (Amapá, Acre, Rondônia, Amazonas, Pará, Ceará, Mato Grosso, Bahia, Espírito Santo) and Bolivia.............. P. viridanus Boheman, 1833

­ Pale dorsal vitta with dense whitish scales intermingled with pale green, ochraceus, or brownish scales ( Fig. 224 View FIGURES 221–227 ). Pronotal depression large, elongate, slightly deeper behind the median, almost rounded tubercle which is flat on top (as in Fig. 250 View FIGURES 239–250 ). Prosternal furrow with a small median projection interrupting furrow. French Guiana, Brazil (Rondônia, Goiás, Mato Grosso, Mato Grosso do Sul, Bahia, Minas Gerais, Espírito Santo, Rio de Janeiro, São Paulo, Paraná, Santa Catarina, Rio Grande do Sul), Paraguay and Argentina................................................................... P. antiquus Jekel, 1855

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Anthribidae