Stenotarsus Perty 1832
Creators: name: Roubik, David W.
name: Skelley, Paul E.
Publisher: name: Zenodo
Year: 2001
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Endomychidae
Stenotarsus

description: Key to the Known Stenotarsus of Panama   
 1) Antennomeres III–VIII not elongate, moniliform; antennal club segments narrow, nearly parallel sided (Fig. 1) ---------------- S. validicornis Gerstaecker   
1') Some or all of antennomeres III–VIII elongate; antennal club segments not narrowed (Figs. 2, 3) ----------------------------------------------------------------------------------------- 2  
 2) Antennomere XI elongate and appearing curved (Fig. 2); antenna long, reaching middle of elytra ---------------------------------------- S. purpuratus Gerstaecker   
2') Antennomere XI oval, not elongated or curved (Fig. 3); antenna not as long, reaching only basal 1/3 of elytra -------------------------------------------------------------- 3  
 3) Pronotal lateral margin relatively narrow (Fig. 4), width at hind angle distinctly less than length of antennomere II ------- S. cyanopterus Gorham   
 3') Pronotal lateral margin broad for entire length (Figs. 5–7), width at hind angle equal or greater than length of antennomere II ---------------------------------- 4   
 4) Base of pronotum between pores with margin weak or absent (Fig. 5); pronotal base weakly concave over scutellum --- S. lemniscatus Gorham   
 4') Base of pronotum between pores with strong margin that leads into the pores (Figs. 6, 7); pronotal base convex over scutellum ---------------------------- 5   
 5) Elytron with basal punctures in the depression next to the humerus not much larger than those near the scutellum (Fig. 6); disc of elytron with weak foveate punctures ------------------------------------------------------------- S. subtilis Arrow   
 5') Elytron with coarse basal punctures in the depression next to the humerus distinctly larger than those near the scutellum (Fig. 7); disc of elytron with notable foveate punctures, often impressed ------------------------------------------------------ 6   
 6) Body relatively elongate and small, less than 4.5 mm (Fig. 8) ------------------------- ------------------------------------------------------------------------------------------------------------------------- S. cuprivestis Gorham   
 6') Body oval and larger, generally more than 4.5 mm (Figs. 9, 10) ----------- 7   
7) Body with color pattern (Fig. 9) --------------------------------------------------------------------------- 8  
7') Body entirely orange (Fig. 10) ------------------------------------------------------------------------------ 9  
 8) Pronotal pubescence dark purple to black (best viewed in profile); metafemur of male with basal spine (Fig. 11) -------- S. globosus Guérin­Méneville   
 8') Pronotal pubescence golden­yellow; metafemur of male lacking spine ------ -------------------------------------------------------- S. panamanus Gorham and S. chiriquinus Arrow   
 9) Male metatrochanter lacking spine; male genitalia long and narrow (Fig. 15) ----------------------------------------------------------------------------------------- S. panamanus Gorham   
9') Male metatrochanter with spine (Figs. 12–14); male genitalia relatively short and broad (Figs. 16–18) ----------------------------------------------------------------------------- 10  
 10) Male with circular depression on anterior part of metasternum (Fig. 12); male genitalia simple, lacking accessory process (Fig. 16) ------------------------- ----------------------------------------------------------------------------------------------------------------------- S. obtusus Gerstaecker   
 10) Male with transversely elongated depression on anterior part of metasternum (Fig. 13); male genitalia with an accessory process (Fig. 17) ----- ---------------------------------------------------------------------------------------------------------------------------------------- S. ovalis Arrow
description: Published as part of Roubik, David W. & Skelley, Paul E., 2001, Stenotarsus Subtilis Arrow, The Aggregating Fungus Beetle Of Barro Colorado Island Nature Monument, Panama (Coleoptera: Endomychidae), pp. 249-263 in The Coleopterists Bulletin 55 (3) on pages 253-255, DOI: 10.1649/0010-065X(2001)055[0249:SSATAF]2.0.CO;2, http://zenodo.org/record/10102784