Sotolensis keltoni sp. nov.

(Figs 1–5)

HOLOTYPE: MEXICO: Durango: “ 5 mi W of Durango [24.03325 ° N 104.73274 ° W] Dgo. MEX. 6500′ [198 m] 14 June 1964 L.A. Kelton; sotol [ Dasylirion sp. ( Asparagaceae), det. field id]”, 1;m (AMNH _ PBI 00418775) . Holotype Sotolensis keltoni n. sp. det. K.L. Menard & M.D. Schwartz, 2018 [red label]. Deposited in the collection of the Instituto de Biologia, Universidad Nacional Autonoma de Mexico, Mexico City, D.F. (IBUNAM) .

Paratypes: MEXICO: Durango: 5 mi W of Durango, 24.03325 ° N 104.73274 ° W, 198 m, 11 Jun 1964, H. F. Howden, Dasylirion sp. ( Asparagaceae), det. field id, 6;m (00418784–00418789), 27;f (00418790–00418804, 00420079–00420090) (CNC), 1;f (00418747) (UOSN), 1;m (00418753), 1;f (00418754) (USNM); 14 Jun 1964, L.A. Kelton, Dasylirion sp. ( Asparagaceae), det. field id, 22;m (00418755–00418774, 0 0 418776, 00418777), 33;f (00420111–00420143) (CNC), 3;m (00418746, 0 0 418748, 00418749), 3;f (00418750–00418752) (UOSN). Durango, 24.0333 ° N 104.6667 ° W, 1890 m, 22 Jun 1964, L.A. Kelton, 2;m (00418781, 00418782), 2;f (00420091, 00420092) (AMNH), 4;m (00418778–00418780, 00418783), 18;f (00420093–00420110) (CNC).

DIAGNOSIS: Same as generic diagnosis.

DESCRIPTION: Coloration, surface, vestiture, structure, and genitalia: As in generic description.

MEASUREMENTS: MALE (holotype /range; N=4): total body length 2.46/2.55-2.70, clypeus to cuneus length 1.75/1.70-1.90, body width 1.06/1.10-1.30, pronotal length 0.43/0.45, head width 0.81/ 0.75-0.83, pronotal width 0.98/0.85-1.00, antennal segment lengths: AS I 0.35/0.40, AS II 0.60/0.60-0.65, AS III 0.35/0.35-0.37, AS IV 0.36/ 0.35, and interocular distance 0.47/0.45-0.47 .

FEMALE (range; N=3): total body length 2.2–2.65, clypeus to cuneus length 1.6-1.9, pronotal length 0.45-0.47, head width 0.83-0.87, pronotal width 0.93-0.97, antennal segment lengths: AS I 0.40-0.43, AS II 0.6-0.63, AS III 0.35-0.37, AS IV 0.35, and interocular distance 0.45-0.5.

ETYMOLOGY: Named after the late Leonard A. Kelton, whose work in Durango, Mexico, led to the capture of these specimens.

HOST: The majority of the specimens collected of this species were labeled as collected on sotol, genus Dasylirion sp. ( Asparagales: Asparagaceae: Notinoideae). There are currently about 22 species of sotol, of which two are known from Durango: D. durangense Trel., and D. simplex Trel. (WSCP 2018). This group of plants is native to Mexico, all have tough leaves with serrated edges that provide a natural defense.