Ambohima maizina, Griswold & Wood & Carmichael, 2012, Griswold & Wood & Carmichael, 2012

Griswold, Charles E., Wood, Hannah Marie & Carmichael, Anthea D., 2012, The lace web spiders (Araneae, Phyxelididae) of Madagascar: phylogeny, biogeography and taxonomy, Zoological Journal of the Linnean Society 164 (4), pp. 728-810: 779-780

publication ID

http://doi.org/ 10.1111/j.1096-3642.2011.00779.x

persistent identifier

http://treatment.plazi.org/id/97784765-6901-FFCA-057E-7568B916FAA3

treatment provided by

Marcus

scientific name

Ambohima maizina
status

SP. NOV.

AMBOHIMA MAIZINA   SP. NOV.

( FIGS 6G, I View Figure 6 , 11A–C View Figure 11 , 42G–I View Figure 42 , 57 View Figure 57 )

Types: Holotype male ( CASENT9016206) collected by beating vegetation at 1875 m elevation at source Andranomifototra , R. N. I. Marojejy, Antsiranana Province, Madagascar, 13–19 November 1996, E. Quinter, deposited in AMNH.  

Etymology: The specific name is from a Malagasy word for the dark; a noun in apposition.

Diagnosis: Male with palp as in Figure 11A–C View Figure 11 , embolic base with a raised, distal cone, cymbium large, length greater than carapace length, palpal prolateral tibial hook long, narrow, distinguished from A. sublima   by having the abdominal dorsum uniform grey ( Fig. 6G View Figure 6 ) and by having fewer leg spines, e.g. lacking spines on the femora.

Male (Holotype): Total length 5.00. Markings of dorsum as in Figure 6G View Figure 6 , abdomen grey-brown, dorsum unmarked, venter with dark area between longitudinal light bands ( Fig. 6I View Figure 6 ). Carapace 2.25 long, 1.80 wide; thoracic fovea 0.38 long, length 0.15 carapace length; clypeus 0.18 high; ocular area 0.31 long, 0.74 wide; ratio of eyes AM/AL/PM/PL, 1.54:2.54:1.00:1.36, diameter of PM 0.11. Chelicerae 0.90 long, slender, smooth, promargin of fang furrow with six teeth, retromargin with seven heterogeneous teeth. Sternum 1.34 long, 1.12 wide; labium 0.46 long, 0.42 wide; palpal coxa 0.78 long, 0.40 wide.

Legs elongate, femur I length 2.51 times carapace length; metatarsi I and II prolateral concavity and clasping spines as in Figure 42G–I View Figure 42 , segment not swollen basad of concavity; apart from claspers legs with very few spines, only mt I r0-1-0-0, v0-0-0-1, T II p0-1-1-0, mt II r0-0-1-0, v2-0-0-1, T III r0-0-1-0, mt III p0-1-0-0, r0-1-0-0, v0-0-0-1. Leg measurements (femur + patella + tibia + metatarsus + tarsus = [total]): I: 5.70 + 1.00 + 6.10 + 5.50 + 2.40 = [20.70]; II: 4.50 + 0.90 + 4.35 + 3.85 + 1.85 = [15.45]; III: 3.70 + 0.70 + 3.10 + 3.15 + 1.60 = [12.25]; IV: 5.00 + 0.85 + 4.60 + 4.55 + 1.85 = [16.85]; palp: 1.75 + 0.50 + 0.50 + (absent) + 2.50 = [5.25]. Palpus as in Figure 11A–C View Figure 11 , femur with triangular group of five thorn-like setae; tibia with dorsal blade (DTA) broad, prolateral hook (PTA) long, slender; cymbium length 1.11 times carapace length, palpal bulb length 1.8 times width, embolus base with dorsal conical projection, reservoir course in embolus base gently curved.

Female: Unknown.

Natural history: Unknown; the unique male specimen was taken by beating vegetation.

Distribution: Known only from the type locality on the Marojejy Massif in north-eastern Madagascar ( Fig. 57 View Figure 57 ).

Material examined: MADAGASCAR: Antsiranana Prov. source Andranomifototra , R. N. I. Marojejy   ,

R

Departamento de Geologia, Universidad de Chile

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Phyxelididae

Genus

Ambohima