Piriana, Santos-Silva & Galileo & Mcclarin, 2018

Santos-Silva, Antonio, Galileo, Maria Helena M. & Mcclarin, Jim, 2018, Division of the genera Sparna Thomson, 1864 and Carterica Pascoe, 1858 (Coleoptera, Cerambycidae, Lamiinae, Colobotheini) with description of six new genera and eight new species, Zootaxa 4407 (1), pp. 1-28 : 18-19

Key to species of Piriana

1. Distance between lateral spines of the elytral apex distinctly greater than humeral width ( Figs 22–23 ). Colombia....................................................................................... P. migsominea ( Gilmour, 1950)

- Distance between spines of the elytral apex, at most, as wide as humeral width ( Fig. 28 )............................. 2

2(1). Elytra distinctly widened after middle ( Figs 18–19 ). Peru................................... P. bosqi ( Gilmour, 1954)

- Elytra not widened after middle (e.g. Fig. 32 )............................................................... 3

3(2). Pronotum with moderately wide lateral dark brown bands (in addition to wider, dark brown central band). Bolivia.......................................................................................... P. tricuspis ( Belon, 1903)

- Pronotum with lateral dark brown bands either very narrow or absent (in addition to wider, dark brown central band)....... 4

4(3). Scape asperate punctate ( Figs 40, 42 ); prothorax with distinct lateral spine. Brazil (Rio Grande do Sul).... P. svachai sp. nov.

- Scape smooth, not asperate punctate; prothorax without lateral spine............................................ 5

5(4). Elytral apex distinctly oblique. Colombia, Ecuador, Brazil (Amazonas)..................... P. cincticornis ( Bates, 1865)

- Elytral apex not oblique................................................................................ 6

6(5). Elytra with 3 longitudinal dorsal carinae. Brazil (Pará) ........................................... P. nearnsi sp. nov.

- Elytra with, 2 or less longitudinal dorsal carinae............................................................. 7

7(6). Body sub-parallel, slender, narrower appearing ( Fig. 32 )....................................................... 8

- Body slightly inflated laterally, wider appearing ( Fig. 28 )..................................................... 9

8(7). Metatibiae in male slender, without distinct bristly pubescence. Bolivia, Peru..................... P. mima ( Belon, 1903)

- Metatibiae short, with distinct bristly pubescence in both sexes. Ecuador.......................... P. consimilis sp. nov.

9(7). Elytra with light colored area restricted to small narrow fascia laterally (along margins) on basal half. Brazil (Pará)................................................................................................. P. birai sp. nov.

- Light colored area much broader, extending past middle of elytra. Nicaragua, Costa Rica, Panama. P. pygmaea ( Bates, 1881)

Figures

FIGURES 18–27. 18–19, Sparna bosqi, holotype male:18, dorsal habitus (photograph by Laura Trinogga); 19, dorsal habitus, drawing by Gilmour (1954). 20, Carterica soror, holotype, dorsal habitus (from Bezark 2017). 21, Carterica soror, male (from Monné & Monné 2008). 22–23, Sparna migsominea, holotype male: 22, dorsal habitus (photograph by Laura Trinogga); 23, dorsal habitus, drawing by Gilmour (1950). 24–27, Pseudosparna flaviceps, male: 24, head, frontal view; 25, lateral habitus; 26, dorsal habitus; 27, ventral habitus.

FIGURES 28–35. 28–31, Piriana birai, sp. nov.; holotype female: 28, dorsal habitus; 29, ventral habitus; 30, lateral habitus; 31, head, frontal view. 32–35, Piriana consimilis, sp. nov., holotype male: 32, dorsal habitus; 33, ventral habitus; 34, lateral habitus; 35, head, frontal view.

FIGURES36–43. 36–39, Piriana nearnsi, sp. nov., holotype female:36, dorsal habitus; 37, ventral habitus; 38, lateral habitus; 39, head, frontal view. 40–43, Piriana svachai, sp. nov., holotype female: 40, dorsal habitus; 41, ventral habitus; 42, lateral habitus; 43, head, frontal view.