Anillinus cornelli Sokolov & Carlton 2004
Creators: name: Harden, Curt W.
name: Caterino, Michael S.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Anillinus
Anillinus cornelli

description: Anillinus cornelli Sokolov & Carlton, 2004   
Figs 29, 30 D – F, 32 C, F  
 Anillinus cornelli Sokolov & Carlton, 2004: 209.   
Material examined.  
  Holotype male (NCSU) : USA. North Carolina: Gaston Co., Crowder’s Mt. State Park, Pine Log litter, J. F. Cornell leg., 23 June 1982. Specimen intact; aedeagus in microvial pinned beneath specimen, both parameres missing. (Sokolov et al. [2004] list USNM as the type depository).   
Other material  
  (n = 2, CUAC). USA • North Carolina • 1 ♂, 1 ♀; Gaston Co.; Crowder’s Mountain State Park, near Linwood Access; 35.2417, - 81.2717; 29 Apr. 2023; C. W. Harden leg.; under embedded rock; CWH- 514 and CWH- 515, CUAC 000182316 and CUAC 000182317 .   
GenBank accession numbers for topotype specimens: OR 853205, OR 839243, OR 839720, OR 837937, OR 838267, OR 853204, OR 839242, OR 839721.  
Literature records.  
The species has been reported from Kings Mountain State Park in South Carolina, without more specific locality information (Sokolov et al. 2004).  
Notes on the type.  
The median lobe of the aedeagus is damaged: the basal lobes appear to be partially torn off, and the organ is laterally flattened and distorted, as if it were previously crushed beneath a cover slip. The illustration of the median lobe in Sokolov et al. (2004) reflects this condition, and is not an accurate depiction of its shape and structure.  
Diagnosis.  
 Members of A. cornelli are relatively large (ABL = 1.75–1.81 mm) and broad (PW / EW = 0.83–0.85, EW / ABL = 0.36–0.38) (Fig. 32 C). As is typical of the valentinei group, microsculpture is effaced from most of the dorsal surfaces of the forebody, three large supraorbital setae are present and both the first and second protarsomeres of males have thick white adhesive setae ventrally. The metafemora of males are slightly swollen, larger than in females, but without teeth or coarse microsculpture patches. The male genitalia are distinctive, and are redescribed based on a recently collected specimen below.   
Redescription of male genitalia.  
Ring sclerite average sized for genus (RL / ABL = 0.27), oval and asymmetrically narrowed anteriorly, with anterior margin deflected ventrally. Median lobe (Fig. 30 F) strongly asymmetrical, with apex abruptly and conspicuously curved to right side. In right lateral aspect, appearing obtusely angulate proximately, nearly straight medially and abruptly curved ventrally at apex. In right dorsolateral aspect, slightly curved and enlarged distally. Left side with small excavation proximally and long carina extending along nearly entire length. Internal sac with long, well-sclerotized flagellum that in dorsolateral aspect is strongly curved proximately (Fig. 32 F), with long basal extension, becoming filamentous distally, where it coils and extends beyond ostium on right side. Three large, blunt spines are present on right side of internal sac near ostium; a fourth spine appears to be present ventral to the others, just before the apex of the median lobe, but this is an artifact caused by the thick, curved sclerotized wall of the aedeagus seen through its curve in right lateral aspect. Behind the three spines, against the ostial opening, a sclerite with three blunt spines fused at the base is present, appearing comb-like. Distal to this comb-like structure is a smaller semicircular ostial sclerite. Right paramere short, bearing four short apical setae (Fig. 30 E). Left paramere conchoidal, with four preapical pores on ventral margin, the apical one bearing a long seta (Fig. 30 D).  
Description of female genitalia.  
Spermatheca long, bisinuate, gradually enlarged distally. Spermathecal duct long and heavily coiled. Bursa with lightly sclerotized folds.  
Distribution.  
 Endemic to Kings Mountain, a monadnock that spans the North Carolina-South Carolina border. (Fig. 29).   
Sympatry.  
 At Crowders Mountain State Park, A. cornelli co-occurs with A. simplex sp. nov. and a species belonging to the elongatus group, possibly conspecific with A. montrex. Both A. simplex and A. montrex also occur at Kings Mountain, along with an undescribed species of Serranillus.   
Natural history.  
 The type material was reportedly collected by litter extraction. On 29 April 2023, CWH collected a pair of A. cornelli from the underside of a large embedded rock on a gently sloping wooded hillside. Several large samples of sifted litter and soil taken from the same locality and another locality within Crowders Mountain State Park on the same date failed to produce specimens of A. cornelli. Two days of intensive hand collecting and litter extraction at Kings Mountain State Park also failed to produce specimens of A. cornelli.   
Notes.  
We have not seen material of this species from South Carolina. No paratypes were found in collections, including those from Kings Mountain State Park reported by Sokolov et al. (2004) to be deposited in the NCSU collection (Bob Blinn pers. comm., March 2022).
description: Published as part of Harden, Curt W. & Caterino, Michael S., 2024, Systematics and biogeography of Appalachian Anillini, and a taxonomic review of the species of South Carolina (Coleoptera, Carabidae, Trechinae, Anillini), pp. 69-197 in ZooKeys 1209 on pages 69-197, DOI: 10.3897/zookeys.1209.125897