Holmelgonia Jocqué & Scharff, 2007

Benoît Nzigidahera & Rudy Jocqué, 2014, On the Afrotropical genus Holmelgonia (Araneae, Linyphiidae), with the description of three new species from the Albertine Rift, European Journal of Taxonomy 77, pp. 1-18 : 4

Holmelgonia Jocqué & Scharff, 2007

Type species

Elgonella nemoralis Holm, 1962

Diagnosis

The generic definition is wide, as the original diagnosis by Holm (1962) had to be enlarged by Jocqué & Scharff (1986) to accommodate the species from Tanzanian mountain areas. The genus is characterized by the absence of cheliceral stridulating ridges ( Figs 2-3 ); the presence of a double ventral row of setae on the femora; the long tibial spines, two to three times as long as the diameter of the segment; tibia I-IV with 2, 2, 1 and 1 spine, respectively; TMI between 0.32 and 0.7; males lack a cephalic lobe; the palpal tibia dorsally produced into a dorsal process ( Figs 4-5, 7 ).

Figures

Figs 2 - 3. Holmelgonia disconveniens sp. nov. (♂, MRAC 227149). 2. SEM micrographs of chelicerae, lateral view, showing absence of stridulating ridges. 3. Detail of previous. Scale bars = 100 μm.

Figs 4 - 10. SEM micrographs. — 4 - 5, 8. Holmelgonia afromontana sp. nov. (♂, MRAC 227153). 4. Palp, retrolateral view. 5. As previous, ventral view. 8. Embolic division, frontal view. — 6, 9. Holmelgonia bosnasutus sp. nov. (♂, MRAC 227145). 6. Palp, retrolateral view. 9. Embolic division, ventral view. — 7, 10. Holmelgonia disconveniens sp. nov. (♂, MRAC 241448). 7. Palp, retrolateral view. 10. Embolic division, frontal view. Scale bars 4 - 7 = 100 μm; 9 - 10 = 50 μm; 8 = 20 μm. E: embolus.