S. L. Straneo.
On the Genus Abaris Dej. (Coleoptera: Carabidae).
Psyche 46:38-41, 1939.

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Psyche
[March
ON THE GENUS ABARIS DEJ.
(COLEOPTERA ; CARABIDB)
Parma, Italy
I have been trying for many months to secure typical examples of all of the known species of the genus Abaris Dej., for a revision of the genus. However, I have been unable to secure all of them, so I shall limit myself here to some notes on the genus.
Chaudoir in his notes on Abaris (Bull. Soc. Nat. Moscou XLVII, 1873, p. 97) has written: "Abaris picipes et strio- latus qui ont . . . les segments abdominaux sillonnt%"; but he was wrong, because Bates in the original description of Abaris picipes said, "ventre hand szdcato" and, "there is no appearance of a transversal groove on the ventral seyments". He said also (Biologia Centrali-Americana, p. 85) that Abaris picipes Bates is really an Abaris, but he put the species with Abaris striolata Bates. In the Junk Catalogue, Csiki has omitted Abaris striolata Bates. This species, known to me only from description, has the claws of the tarsi pectinated (Bates, 1.- c., p. 85) and the ventral segments grooved; owing to these characters, it should be inserted in the genus Abaridius Chaud. or in a new genus near Abaris and A baridius.
Here follows the description of a new species found in the material sent to me by P. J. Darlington Jr. of the Museum of Comparative Zoology of Cambridge, Massachusetts. Abaris darlingtoni n. sp. (fig. 1)
Aeneous, lightly virescent, head and pronotum very shiny, elytra a little less nitid; antennae, legs, and mouth ferru- gineous, joints 1-3 of antennae a little darker in the middle, femora and apex of mandibles darker, lateral margin of pronotum ferrugineous, last ventral segment at apex broadly flavous. Length : 5.5 mm. ; max. lat. 2.1 mm. Pnchs 4<:38-41 (1939). hUp Ytpsycht enlclub o~H(i/&Ol8 html



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19391 Genus A baris 39
Head very similar to that of Abaris aenea Dej.; large, smooth, neck evidently constricted, eyes large and convex, frontal fovese moderately deep, short, rather united by a vague frontal impression behind clypeal suture. Prothorax wide, sides gently rounded, lateral margin slightly explanate and moderately reflexed in basal half, median line very fine, interior basal fovese rather deep, the exterior ones more superficial, with a few large punctures, and rugosities, not extended to lateral margin; anterior margin a little less wide than the head with the eyes; base distinctly wider than the anterior margin. Fig. 1.
Abaris dadifigtoni n. sp.
Elytra oblongo-ovate, a little wider than the prothorax, one half longer than wide, with the greatest width before the middle; strise strongly impressed, the scutellary one vestigial; third interstice a little less wide than the first and second together, with a single puncture behind the middle. Underside smooth, metapisterna long, ventral segments not sulcate.
Claws of the tarsi finely pectinated; onychium with some fine setse on the underside.
The microsculpture, invisible on the prothorax, on the elytra is rather faint and transversal.
Locality: Panama Canal Zone : Barro Colorado Island (Van Tyne and Darlington), 2 examples. Holotype in the



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40 Psyche [March
Museum of Comparative Zoology at Cambridge, Massa- chusetts (type no. 23,393) ; allotype in coll. Straneo. This new species is closely allied to Abaris aenea Dej. and notiophiloides Bates by the lack of a scutellary stria and by the lateral margin of the pronotum distinctly reflexed near the basal angles. Compared with A. aenea Dej. the 3rd interstice of elytra is wider (nearly as wide as in notio- philoides) and the lateral margin is a little less reflexed near the base: compared with A. notiophiloides Bates, the legs are ferrugineous and the femora darker (in notio- philoides, flavo-testaceous) and the base of the pronotum is punctured only near the basal fovese (in notiophiloides, also in the basal part of lateral margin). KEY TO THE SPECIES OF THE GENUS ABARIS DEJ. (8) No scutellary stria.
(7)
Lateral margin of pronotum in the basal part wide and distinctly reflexed.
(4)
Third interstice of elytra subequal to or only a ................ little wider than second. aenea Dej.
(3)
Third interstice of elytra distinctly wider than 2nd, about as wide as first and second to- gether.
(6)
Legs flavous; base of pronotum punctured, in- cluding the basal part of lateral margin. ........ .......................................... notiophiloides Bates (5)
Legs ferrugineous red, femora darker; base of pronotum punctured only near basal foveae. .............................................. darlingtoni n. sp. (2)
Lateral margin of pronotum even near base narrow and not reflexed. .................................. ........................................ aequinoctialis Chaud. (1)
Scutellary stria present and rather elongate. (10)
Size smaller (5-5.5 mm.). basistriatus Chaud. (9)
Size larger (6.5-8 mm.) .
(12)
External basal foveae-of pronotum not distinct, because lateral margin is widely reflexed. ...... robustulus Tschit. ..........................................



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19391 Genus Abaris 41
(12) (11) External basal foveae of pronotum very dis- tinct, lateral margin of the pronotum not re- .................................
flexed (from description)
..................... bigenera Bates & picipes Bates I do not know these last species, and in the original de- scription there are no useful differential characters, for A. bigenera is compared with Pseudobaris substriatus Chaud. which belongs to another genus.
I have to thank Mr. H. E. Andrewes and Dr. P. J. Darling- ton Jr. for the specimens kindly sent to me for examination, and my friend Dr. F. Capra for his help in connection with old descriptions.




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