Loxosceles maisi, Ruiz, Alexander Sánchez & Brescovit, Antonio D., 2013

Ruiz, Alexander Sánchez & Brescovit, Antonio D., 2013, The genus Loxosceles Heineken & Lowe (Araneae: Sicariidae) in Cuba and Hispaniola, West Indies, Zootaxa 3731 (2), pp. 212-222 : 216

Loxosceles maisi new species

Figs. 17−24 , 47−48

Types. Holotype: male from Punta Negra, Maisí , Guantánamo, Cuba (20°5'37.39"N, 74°14' 11.50"W), under Agave sp., Aug. 8, 2000, A. Sánchez col., deposited in IBSP164682. Paratypes: two females with same data as holotype, deposited in IBSP164683 and IBSP164684.

Etymology. The specific name is a noun in apposition taken from the type locality.

Diagnosis. Specimens of L. maisi sp. nov. resemble those of L. mogote sp. nov. and L. taino by the globose palpal tibiae in the male palp, but can be distinguished by the form of embolus ( Figs. 17−18 ) and by the hand-like receptacles with 5−6 lobes ( Figs. 47−48 ).

Description. Male (holotype, IBSP164682): Carapace orange, darker in cephalic region ( Fig. 19 ). Chelicerae, labium and legs orange ( Fig. 20 ). Endites yellow at base and orange distally. Sternum yellowish orange. Palp with cymbium and tibia orange and rest yellow. Abdomen gray. Total length 7.5. Carapace 3.3 long, 3.1 wide. Clypeus 1.1 high. Eye diameters: ALE 0.55, PME 0.5, PLE 0.5. Leg measurements: I: femur 8.0/ patella 1.4/ tibia 9.5/ metatarsus 9.6/ tarsus 1.6/ total 30.1; II: 8.9/ 1.3/ 10.6/ 10.7/ 1.6/ 33.1; III: 7.6/ 1.3/ 7.4/ 10.7/ 1.5/ 28.5; IV: 8.0/ 1.3/ 9.4/ 9.7/ 1.6/ 30. Leg formula: 2143. Sternum 1.9 long, 1.7 wide. Palpal tibia 1.0 long, 0.7 wide. Palp with cymbium almost the same length of tegulum and embolus longer than cymbium ( Figs. 31−32 ).

Female (paratype, IBSP164683): Coloration as in male, except abdomen darker ( Figs. 19−20 ). Total length 8.8. Carapace 3.9 long, 3.1 wide. Clypeus 1.1 high. Eye diameters: ALE 0.55, PME 0.55, PLE 0.5. Leg measurements: I: femur 7.0/ patella 1.3/ tibia 7.1/ metatarsus 7.3/ tarsus 1.2/ total 23.9; II: 7.2/ 1.4/ 7.5/ 7.8/ 1.2/ 25.1; III: 6.2/ 1.4/ 5.2/ 6.7/ 1.1/ 20.6; IV: 6.7/ 1.3/ 5.8/ 7.7/ 1.3/ 22.8. Leg formula: 2143. Sternum 1.8 long, 1.7 wide. Palpal tibia 0.9 long, 0.25 wide. Palpal tarsus 1.1 long, slender at tip ( Figs 21−22 ). Epigynum as in figs. 47−48.

Variation. Female (n=4): total length 7.5−9.0, carapace 3.0−3.9 long, femur I 6.1−7.0 long. Palpal tibia 0.75−0.9 long, 0.2−0.25 wide. Palpal tarsus 0.9−1.1 long.

Additional material examined. CUBA. Guantánamo: Maisí , La Llana (20°4'30.00"N, 74°24'34.92"W), under Agave sp., A. Sánchez, Sept. 8, 2000 (IBSP164685, 3♀).

Distribution. Known only from two localities on the southeastern coast of Guantánamo province, Cuba.

Figures

FIGURES 17 − 24. Loxosceles maisi sp. nov. 17 − 20 Male. 17 palp, prolateral view; 18 palp, retrolateral view; 19 prosoma, dorsal view; 20 prosoma, lateral view. 21 − 24 Female. 21 palp, prolateral view; 22 palp, retrolateral view; 23 prosoma, dorsal view; 24 prosoma, lateral view.

FIGURES 45 − 48. Female internal genitalia, dorsal view (left), ventral view (right). 45 − 46 Loxosceles mogote sp. nov. 47 − 48 Loxosceles maisi sp. nov.

FIGURES 31 − 38. Loxosceles taino Gertsch & Ennik, 1983. 31 − 34 Male. 31 palp, prolateral view; 32 palp, retrolateral view; 33 prosoma, dorsal view; 34 prosoma, lateral view. 35 − 38 Female. 35 palp, prolateral view; 36 palp, retrolateral view; 37 prosoma, dorsal view; 38 prosoma, lateral view.