Temnothorax nevadensis (Wheeler

Ward, P. S., 2005, A synoptic review of the ants of California (Hymenoptera: Formicidae)., Zootaxa 936, pp. 1-68: 16-17

publication ID

21008

persistent identifier

http://treatment.plazi.org/id/C7E82414-07D0-8F93-DEDA-A0B7D799FD46

treatment provided by

Thomas

scientific name

Temnothorax nevadensis (Wheeler
status

 

Temnothorax nevadensis (Wheeler  HNS  1903d)

(Figure 9)

Leptothorax nevadensis Wheeler  HNS  1903d: 252. Two syntype workers, two syntype males, Kings Canon , Ormsby Co., Nevada (C. F. Baker) [ MCZC] [Examined]  Note: original description also includes dealate queen.

Leptothorax melanderi Wheeler  HNS  1909e: 81. Holotype worker, Moscow Mountain , Idaho (A. L. Melander) [ AMNH]  [Not examined]. Synonymy by Mackay 2000: 376.

Leptothorax eldoradensis Wheeler  HNS  1915b: 414. Two syntype workers, Mt. Wilson , California (J. C. Bradley) [ MCZC]  [Examined]. Synonymy by Mackay 2000: 376; here confirmed.

Leptothorax lindae Mackay  HNS  2000: 356. Holotype worker, Wolverton Campground, Sequoia Natl. Park , Tulare Co., California (W. & L. Mackay) [ MCZC]  [Examined]. Paratype workers (same data) in LACM  also examined. Syn. nov.

Leptothorax maryanae Mackay  HNS  2000: 364. Holotype worker, 4 mi N Fawnskin, San Bernardino Mnts , California (B. & E. Mackay) [ MCZC] [Examined]  Syn. nov.

Temnothorax lindae (Mackay  HNS  ); Bolton 2003: 271. First combination in Temnothorax  HNS  .

Temnothorax maryanae (Mackay  HNS  ); Bolton 2003: 271. First combination in Temnothorax  HNS  .

Temnothorax nevadensis (Wheeler)  HNS  ; Bolton 2003: 271. First combination in Temnothorax  HNS  .

Comments. This is another common species of Temnothorax  HNS  in California and other western states, occupying a broad range of habitats, including coastal scrub, chaparral, oak woodland, open coniferous forest, and sagebrush desert. The worker can be recognized by the dark brown to black body color; relatively long and slender pilosity; opaque to sublucid head, with longitudinal rugoreticulate sculpture and scattered foveolae; dense foveolate sculpture on the mesosoma, overlain by weak rugulae; well developed propodeal spines; slender petiole, with anterior face rounding abruptly into posterodorsal face (Fig. 9); and relatively narrow postpetiole (PPW/DPW 1.34-1.51, PPW/T4W 0.33-0.39; n = 6). Size is variable, such that worker HW 0.47-0.70, but usually>0.55. There is considerable variation in the length and slenderness of the propodeal spines but they are always longer than the anteroventral petiolar process. In some T. nevadensis  HNS  workers from eastern California and Nevada the head is rather shiny (sculpture much reduced), but the variation appears to be continuous. Interestingly, a similar trend is seen in the related arboreal species, T. gallae (M. R. Smith  HNS  ): near its eastern limit (in Joshua Tree National Park, southeastern California) workers have shinier heads than in populations farther west.

Taking into account the variability inherent in T. nevadensis  HNS  , this species readily encompasses the forms described by Mackay (2000) as T. lindae  HNS  and T. maryanae  HNS  (and placed inexplicably by him in different species complexes, separate from one another and from T. nevadensis  HNS  ), plus two of the three taxa previously considered to be subspecies of T. nevadensis  HNS  : melanderi  HNS  and eldoradensis  HNS  . I have not examined the type of T. melanderi  HNS  so some doubt remains here, but the original description and the type locality suggest that the synonymy is justified. On the other hand, T. rudis  HNS  , described as a subspecies of T. nevadensis  HNS  -and synonymized under T. nevadensis  HNS  by Mackay (2000)-is a distinct and easily recognized species, as documented below.

MCZC

USA, Massachusetts, Cambridge, Harvard University, Museum of Comparative Zoology

AMNH

USA, New York, New York, American Museum of Natural History

LACM

USA, California, Los Angeles, Los Angeles County Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Formicidae

Genus

Temnothorax

Loc

Temnothorax nevadensis (Wheeler

Ward, P. S. 2005

2005
Loc

Temnothorax lindae (Mackay

Mayr 1861

1861
Loc

Temnothorax

Mayr 1861

1861
Loc

Temnothorax maryanae (Mackay

Mayr 1861

1861
Loc

Temnothorax

Mayr 1861

1861
Loc

Temnothorax nevadensis (Wheeler)

Mayr 1861

1861
Loc

Temnothorax

Mayr 1861

1861