Strumigenys collinsae

This species is known from a single dealate queen collected in August without associated workers. Although the label gives the habitat as oak woodland, the collector only reports sampling yellow pine and juniper litter for the given locality in his publication focusing on Pseudoscorpiones (Hoff 1961). This specimen was discovered in the FMNH collection misidentified by R. G. Gregg as Strumigenys ohioensis (a junior synonym of Strumigenys pilinasis) (Booher, 2021).

Identification
Strumigenys collinsae is distinguished from all other North American species by dentition, having four principle teeth with the first two nearly equal in size followed by two smaller teeth of equal size. This species is most similar to Strumigenys reliquia, having similarities in shape of clypeus, dentition of mandibles, and pilosity. However, in S. reliquia the second principle tooth is much shorter than the first and has flagellate apicoscrobal and tibial setae where S. collinsae does not.

Distribution based on type material
United States.

Nomenclature

 * . Strumigenys collinsae Booher, 2021: 224, fig. 37 (q.) UNITED STATES.

Type Material

 * Holotype Queen. USA, Colorado, Pueblo County, 23 miles north of Walsenburg, berlese of sifted litter, estimated GPS 37.939013, -104.812018 ±2500m, 15 August 1958, Collector Clayton Hoff, el 1802m, collection code #124, unique specimen identifier (FMNH-INS 0000 119 056) [FMNH].