(Female redundant descriptions removed)
Orchestina atocongo
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Male (PBI_OON 1662). CEPHALOTHORAX: Carapace pale orange, ovoid in dorsal view, pars cephalica slightly elevated in lateral view, anteriorly narrowed to between 0.5 and 0.75 times its maximum width, with rounded posterolateral corners, posterolateral edge without pits, posterior margin not bulging below posterior rim, anterolateral corners without extension or projections, posterolateral surface without spikes, surface of elevated portion of pars cephalica smooth, sides smooth, thorax without depressions, fovea absent, with dark pigment on borders, without radiating rows of pits; lateral margin straight, smooth, without denticles; non-marginal pars cephalica setae present, scattered, only sockets were observed; non-marginal pars thoracica setae present; marginal setae absent. Clypeus margin unmodified, curved downwards in front view, sloping forward in lateral view, high, ALE separated from edge of carapace by their radius or more, median projection absent; setae present. Chilum absent. Eyes six, well developed, posterior eye row slightly recurved in front view, PME largest, ALE circular, PME oval, PLE circular; posterior eye row recurved from above; ALE separated by more than their diameter, ALE-PLE touching, PME touching throughout most of their length, PLE-PME separated by PME radius to PME diameter. Sternum longer than wide, pale orange, uniform, not fused to carapace, median concavity absent, without radial furrows between coxae I-II, II-III, III-IV, radial furrow opposite coxae III absent, surface smooth, without pits, microsculpture covering entire surface, sickle-shaped structures absent, posterior margin extending posteriorly beyond anterior edges of coxae IV as single extension, anterior corner unmodified, lateral margin without infra-coxal grooves, distance between coxae approximately equal, extensions of pre-coxal triangles absent, lateral margins unmodified, without posterior hump, anterior heart shaped, only sockets were observed; setae sparse, evenly scattered, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium pale orange. Chelicerae straight, anterior face unmodified; without teeth on both promargin and retromargin; fangs without tooth-like projections, directed medially, shape normal, without prominent basal process, tip unmodified; setae dark, evenly scattered; paturon inner margin with scattered setae, distal region unmodified, inner margin unmodified. Labium rectangular, not fused to sternum, anterior margin not indented at middle, same as sternum in sclerotization; with 6 or more setae on anterior margin, subdistal portion with unmodified setae. Endites distally not excavated, anteromedian tip with one strong, tooth-like projection, posteromedian part unmodified, same as sternum in sclerotization, serrula not clear. ABDOMEN: ovoid, without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small sclerotized platelets absent posteriorly; dorsum soft portions pale white, with gray netlike pattern. Book lung covers large, round, without setae, anterolateral edge unmodified. Posterior spiracles not connected by groove. Pedicel tube medium, scuto-pedicel region unmodified, cuticular outgrowths near pedicel absent, only sockets were observed, abdomen separated from prosoma. Dorsal scutum absent. Epigastric scutum absent. Postepigastric scutum absent. Spinneret scutum absent. Abdomen setae only sockets are present. Colulus present. LEGS: yellow, without color pattern; femur IV thickened, much larger than femora I-III, tibia IV specialized hairs on ventral apex absent, tibia IV ventral scopula absent, metatarsi III and IV weak ventral scopula absent, coxae femora, patellae, tibiae and metatarsi slightly colored with purple pigment, trochanter left leg I and right legs I, III, IV absent. Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Tarsi I to IV without inferior claw. Trichobothria examined with Stereo microscope; metatarsus: II one, III one, IV one. GENITALIA: Epigastric region with sperm pore not visible; furrow without omega-shaped insertions, without setae. Palp normal size, not strongly sclerotized, right and left palps symmetrical, proximal segments pale orange; embolus dark, prolateral excavation absent; trochanter normal size, unmodified, right palp absent; femur normal size, two or more times as long as trochanter, without posteriorly rounded lateral dilation, attaching to patella basally; patella shorter than femur, not enlarged, without prolateral row of ridges, setae unmodified; tibia trichobothria not examined; cymbium pale orange, ovoid in dorsal view, not fused with bulb, not extending beyond distal tip of bulb, plumose setae absent, without stout setae, without distal patch of setae; bulb pale orange, more than 2 times as long as cymbium, stout, spherical.
Orchestina atocongo, male carapace, anterior view (image by MI, specimen ID: ---01662)
ORCHEAToCOmpcara01662MI.tif
| Orchestina atocongo, male carapace, dorsal view (image by MI, specimen ID: ---01662)
ORCHEAToCOmpcard01662MI.tif
| Orchestina atocongo, male abdomen, lateral view (image by MI, specimen ID: ---01662)
ORCHEAToCOmpabdl01662MI.tif
| Orchestina atocongo, male carapace, lateral view (image by MI, specimen ID: ---01662)
ORCHEAToCOmpcarl01662MI.tif
| Orchestina atocongo, male palp, dorsal view (image by MI, specimen ID: ---01662)
ORCHEAToCOmppald01662MI.tif
| Orchestina atocongo, male palp, prolateral view (image by MI, specimen ID: ---01662)
ORCHEAToCOmppalp01662MI.tif
| Orchestina atocongo, male palp, retrolateral view (image by MI, specimen ID: ---01662)
ORCHEAToCOmppalr01662MI.tif
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DISTRIBUTION
PERU
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Orchestina atocongo, Discover Life Map
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MATERIAL EXAMINED
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| PBI USI |
Country |
State |
Division |
Locality |
Sex |
Type Status |
Elevation(m) |
GPS Coordinate |
Habitat |
Collection_Date |
Collector |
Inst. Code |
| PBI_OON 00001662 |
PERU |
Lima |
|
lomas de Atocongo |
1 Adult Male |
Holotype |
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10 Oct 1963 |
P., B. Wygodzinsky |
AMNH |
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