138 
the appendages were then drawn using a camera lucida including 
drawings of the new species. The types selected for museum storage 
are preserved in 70% ethanol/5% glycerine. 
SYSTEMATICS 
Ischioscia variegata (Dollfus, 1893) 
MATERIAL EXAMINED. 19 males, 11 females (with marsupium), 11 
females/immatures: Parque Nacional El] Avila 10°34.70'N 
66°53.92'W, banana plantation, forest along brook, leg. C. Schmidt 
10.3.1998; 3 males, 10 females (with marsupium), (MHNG); 8 
females 11 immatures: 10°33.01'N 66°54.41'W Forest with Bamboo, 
Heliconia sp., Ricinus sp. among others, gas pipeline crossing under 
street, small river, under bamboo leaves on sand, gravel, leg. C. 
Schmidt 11.3.1998; 1 male: Aragua, Parque Nacional Henry Pittier, 
Mist forest near Estacion Biologica Rancho Grande, between leaves 
of fallen bromeilad, leg. C. Schmidt 14.3.1998; | male, 1 females 
(with marsupium), | immature: Aragua, Parque Nacional Henry 
Pittier, street heading from Rancho Grande to sea shore, near Capilla 
Virgen del Carmen, Mist forest, brook with cascade, under moist leaf 
litter and stones, leg. C. Schmidt 15.3.1998; 1 male: Falcon, Parque 
Morrocoy, Peninsula de Morrocoy, northern shore, Cueva del Indio 
(carstic cave with crushed ceiling, within detritus in small niches and 
edges of the rock, under stones on bottom, leg. C. Schmidt 18.03.1998; 
3 males, 3 females (with marsupium), 6 females: Sierra de San Luis, 
11°07.35'N 69°40.74'W opposite to Cueva San Luis, forest with 
almost dried out brook emerging from cave, stones litter, 
Bombacaceae, Piperaceae, mango-trees, under logg, leg. C. Schmidt 
20.3.1998; 2 males, 1 females (with marsupium), 2 females: 
Curimagua 11°11.61'N 69°39.96'W track to Cueva de Lugo, banana 
plantation, under loggs, leg. C. Schmidt 21.3.1998; 1 female, 3 
immatures: Curimagua, Cueva de Lugo 11°11.90'N 69°39.88'W 
carstic cave without water, moist bottom, at the entrance under 
stones, leg. C. Schmidt 21.3.1998; 4 males, 3 females (with marsu- 
pium), 6 females, 2 immatures: Cueva Acurite 1 1°10.42'N 69°37.75'W 
cartic cave with water, surrounded by forest and banana plantation, 
at the entrance under stones and leaf litter, leg. C. Schmidt 21.3.1998; 
3 males, 3 females, 1 immature: Eastern slope of Andes ‘La Campana’ 
8°51.92'N 70°37.14'W 1500 m (+/— 200 m) moist forest (Araceae, 
Arecaceae, Melostomataceae, Orchidaceae) under leaf litter, leg. C. 
Schmidt 24.3.1998; 1 male, | female: Peninsula de Paria, Puy Puy 
10°42.00'N 62°58.05'W bay with sandy beach, coconut palms, 
surrounded by dry mountains, small westernmost bay, under loggs, 
coconuts and leaf litter, leg. C. Schmidt 29.3.1998; | males, 3 females 
(with marsupium), 11 females/immatures: Peninsula de Paria, Puy 
Puy 10°42.00'N 62°58.05'W bay with sandy beach, coconut palms, 
surrounded by dry mountains, forest at the edge of banana plantation 
east of bay, in leaf litter, leg. C. Schmidt 1.4.1998; 2 immature males, 
| female (with marsupium): Caripe, surroundings of Cueva del 
Guacharo 10°10.37'N 63°33.14'W moist forest, under rotting loggs 
and leaf litter along brook, leg. C. Schmidt 7.4.1998; 1 male: 
Peninsula de Paria, southern shore of eastern part, 10°34.87'N 
63°03.60'W, thermal well with thatched roof, uncovered near water 
edge; surrounded by meadows with cattle, leg. C. Schmidt 8.4.1998 
Ischioscia fasciifrons sp.nov. 
Figs 1-4 
MATERIAL EXAMINED. Holotype, male (body length 10 mm): 
Curimagua, 1250 m, under wood in the garden of a hotel, leg. C. 
Schmidt 21.03.1998. 
A. LEISTIKOW 
DESCRIPTION 
Colour. Dorsum ona light umber ground colour patched with light 
spots and a darker medial band running down to the pleon, coxal 
plates with dark patches, on coxal plates VI and VII extensive dark 
areas. Cephalothorax with a dark band between the compound eyes 
on postfrons, profrons with a dark inverted Y covering lamina 
frontalis, extending ventrally. 
Cephalothorax. Vertex flattened with few tricorn-like setae, com- 
pound eyes consisiting of about 26 ommatidia arranged in four rows. 
Lamina frontalis and very faint linea supra-antennalis present, linea 
frontalis lacking (Fig. 1, Ctf). 
Pereon. Cephalothorax set back into pereonite 1 coxal plates 
prominent, with sulcus marginalis, no gland pores or noduli laterales 
visible in light microscope, tegument smooth, bearing several slen- 
der tricorn-like setae, highest density along lateral and distal margins 
(Fig. 1, Cx3). 
Pleon. Set apart from pereon, neopleurae of pleonites 3 to 5 
prominent, pleotelson with concave lateral margin, as long as 
protopodites of uropods. 
Antennula. Composed of three articles of subequal length, distal 
article pointed with several aesthetascs apically and along medial 
margin, caudal side of proximal article extended (Fig.1, An1). 
Antenna. Broken in the specimen examined, peduncular articles 
bearing tricorn-like setae (Fig. 1, An2). 
Mandible. Pars intermedia with coniform setae, two penicils on 
left and one on right side, additional plumose seta proximally, molar 
penicil composed of about 7 branches (Fig. 2, MdlI/r). 
Maxillula. Medial endite with two stout penicils apically and 
small subapical tip, lateral endite with 4+6 teeth apically, 3 of inner 
set deeply, two slightly cleft, slender subapical tooth and acute 
hyaline lobe caudally (Fig. 2, Mx1). 
Maxilla. Both lobes covered with faint setation, medial trichiae 
stronger, lateral lobe slightly broader than medial, medial lobe 
apically cuspidate (Fig. 2, Mx2). 
Maxilliped. Basipodite with plentiful cover of tricorn-like setae, 
sulcus lateralis present, endite caudally setose, rostrally with knob- 
like penicil, palp with proximal article bearing short and long seta, 
medial article with short proximal setal tuft, distal tufts slightly 
stalked (Fig. 2, Mxp). 
Pereopods. Pereopods slender (Fig. 3, PE3—7; Fig. 4, PE1), carpus 
with antenna-grooming brush and ornamental sensory spine with 
hand-like apex (Fig. 3, Scl), dactylus with long inner claw and 
simple dactylar seta, apically slightly tapered (Fig. 3, Dac). Sexual 
differentiation. Pereopod 1 and 2 carpus enlarged with setal field 
rostrally, enlargement not too prominent, pereopod 3 with a very 
small setal field on medio-proximal border of caprus and medio- 
distal margin of merus. Pereopod 6 ischium with a small depression 
rostrally near medial margin with sensory spine, pereopod 7 ischium 
witha slightly twisted medial margin, thus forming a groove rostrally, 
slight distal lobe with few trichiae. 
Pleopods. Pleopod endopodites bilobate, exopodites with about 8 
to 9 sensory spines laterally, medially with trichiae and minute 
pectinate scales, pleopod 5 with caudal creel of three rows of 
prominent pectinate scales, protopodite 3 to 5 with medial protru- 
sion, less conspicuous on pleopod 4 and 5, rudimental epipodites on 
pereopod | to 4 (Fig. 4, PL1-—S). Sexual differentiation. Male 
pleopod | exopodite triangular with lateral protrusion hardly set 
apart, incision merely a sinuosity, endopodite apically obtuse, with 
minute spines apically and lateral row of minute spines. Pleopod 2 
exopodite elongate with about 12 sensory spines laterally, medially 
with minute pectinate scales, endopodite longer than exopodite, 
apex looking like a hypodermic needle. 
Uropod. As in other species of the genus. 
