Acromares banksi
Acromares banksy
Acromares banksi Goodnight & Goodnight, 1942, from original description.











Acromares banksi Goodnight & Goodnight, 1942 is a species of the Neotropical Cosmetidae: Cosmetinae in the genus Acromares.

Taxonomy/Synonymy Edit

Etymology Edit

There is no details of the etymology given by the original authors, but presumably the species name is an honorific after Nathan Banks, who had previously described other arachnids (including cosmetids).


Originally included in Acromares. Later transferred to Erginulus and then restored to Acromares

Specimens (including type data) Edit

M.b. Holotype male and unknown number of paratypes (including females): in AMNH, USA.

M.b. Paratype female (1 specimen) CNAN-T0036 [UNAM AH145]: in UNAM, Mexico.


Goodnight & Goodnight 1942 [1],say (p.2). MALE .- Total length, 6.7 mm. Cephalo-thorax, 2.1 mm. Width of abdomen at widest portion, 6.0 mm. Dorsum smooth, with a pair of heavy spines on the fourth area. Free abdominal tergites unarmed, venter armed with scattered hairs and tubercles. Third and fourth legs as in generic description, legs armed only with a few low hairs.Palpus: trochanter, 0.2 mm. long; femur, 0.9; patella, 2.2; tibia, 1.3; and tarsus, 1.1. Total length, 5.7 mm. Palpi characteristically flattened. Dorsum reddish brown mottled with darker and lighter markings. Dorsum handsomely decorated by a series of yellowish markings which assume a lacy pattern on the lateral and posterior margins. The median line and the margin of the areas are lined with a lighter reddish-brown. A series of round circular yellowish spots are scattered about the cephalothorax and on the abdomen, especially on the first three areas. Spines black, eye tubercle concolorous with dorsum, with light spots. Venter, palpi, and chelicerae concolorous with dorsum, legs yellowish brown, lighter than dorsum except for the rows of spines on the fourth leg, which are darker. FEMALE.-Total length, 7.2 mm. Cephalothorax, 3.1. Width of abdomen at widest portion, 5.4 mm. Identical in appearance with male, except for the lack of the secondary sexual characteristics. TYPE LOCALITY.- Male holotype and male and female paratypes from Palomares, Oaxaca, July 23, 1909 (Dr. A. Petrunkevitch). Numerous male and female paratypes from 23 kilometers northeast of Jesus Carranza, Vera Cruz, October 8, 1939 (C. M. Bogert and H. E. Vokes).


  • Location: MEXICO, Estado Oaxaca, Palomares.


  1. Goodnight, Clarence J. & Marie L. Goodnight, 1942b. New and little known Phalangida from Mexico. American Museum Novitates, New York, 1163: 1-16. [Publication date is 13 February 1942].