Neivamyrmex californicus (Mayr),

Snelling, G. C. & Snelling, R. R., 2007, New synonymy, new species, new keys to Neivamyrmex army ants of the United States., Advances in ant systematics (Hymenoptera: Formicidae): Homage to E. O. Wilson - 50 years of contributions. (Memoirs of the American Entomological Institute 80), pp. 459-550: 467-468

publication ID

21290

persistent identifier

http://treatment.plazi.org/id/132180C6-643F-E1D3-36FE-B98CB11E20FC

treatment provided by

Christiana

scientific name

Neivamyrmex californicus (Mayr)
status

 

Neivamyrmex californicus (Mayr)  HNS 

Figures 2, 18, 32, 62, 75, 88

Eciton californicum Mayr  HNS  , 1870: 969 (w). USA, California, San Francisco (NHMV). Lectotype

designated by Ward, 1999: 76 Eciton (Labidus) californicum  HNS  : Mayr, 1886 b: 121 (w). Eciton (Acamatus) californicum  HNS  : Emery, 1894: 184 (w). Emery, 1900: 523 (w). Eciton (Acamatus) californicum var. obscura Forel  HNS  , 1914 a: 265 (w). USA, California, Vista ( MHNG)  .

Lectotype designated by Ward, 1999: 76 Eciton (Neivamyrmex) californicum  HNS  : M. R. Smith 1942: 560 (w). Creighton, 1950: 70 (w). Neivamyrmex californicus  HNS  : Borgmeier 1953: 11 (w). Borgmeier, 1955: 517 - 519 (w). Watkins, 1976: 15

(w). Ward, 1999 (w).

DISTRIBUTION (Map 1)

UNITED STATES, California. MEXICO, Baja California.

SPECIMENS EXAMINED

UNITED STATES, CALIFORNIA, Contra Costa Co.: 9 km ENE Danville , 490 m (37 ° 51 ' N 121 ° 54 ' W) ( UCDC)GoogleMaps  ; El Dorado Co.: 14 km NW Shingle Springs , 340 m (38 º 45 ' N 121 º 02 ' W) ( UCDC, GCSC, LACM)GoogleMaps  . Los Angeles Co.: Arcadia ( USNM)  ; La Verne ( USNM, MCZC)  ; Los Angeles ( USNM)  . Orange Co.: Laguna Hills ( LACM)  ; Tonner Canyon ( WPMC)  . Riverside Co.: Riverside , “ in house ” ( GCSC, KWCC, LACM); Lake Skinner ( UCRC 0. Santa Barbara Co.: T 5 N, R 28 W s. 17, 500 m, ( JTLC)GoogleMaps  .  San Diego Co.: National City ( USNM)  ; Vista ( USNM)  ; Camp Pendleton ( LACM)  ; 5 mi NE Poway , 600 m ( UCDC)  ; Mt. Laguna, MSP Site, 6050 ft. ( LACM)  ; Mira Mar , Elliot Reserve (32.84 º N 117.11 º W) ( JAKC)GoogleMaps  . Yolo Co.: Davis ( LACM, PENN)  .

MEXICO, BAJA CALIFORNIA: 28 km E Ensenada, 750 m (31 º 53 ' N 116 º 18 ' W) ( UCDC)GoogleMaps  ; San Carlos Canyon, 9.0 mi E Hwy 1,300 ft., mesic canyon bottom, sifted from litter (31 º 47.88 ' N 116 º 30.05 ' W) ( ARSU)GoogleMaps  .

DISCUSSION

The male form of this ant is unknown. This species appears to be primarily an ant of montane and foothill areas. Previously believed to occur only in California, recent extensive collection in Baja California has located this species there. All previous out of state records believed to apply to this species have proven to refer to the recently recognized shiny headed form of N. nigrescens  HNS  (Ward 1999). Watkins (1972) described what he believed was the queen of N. californicus  HNS  , however recent reexamination of the specimen in question (Ward, 1999) has led to the conclusion that it too is a representative of the shiny form of N. nigrescens  HNS  .

Little is known about the feeding preferences of this species other than that it presumably attacks exclusively, or nearly so, other ant species. Ward (1999) lists the following as prey species of this ant: Messor andrei, Solenopsis molesta  HNS  , Pheidole californica  HNS  and P. hyatti  HNS  . One of us (GCS) observed a portion of a raid on a Solenopsis xyloni  HNS  colony; the raid was well underway when it was discovered. It was apparently a violent one with S. xyloni  HNS  vigorously defending its nest. Whether or not the raid was successful from the standpoint of N. californicus  HNS  is unknown but the ground was littered with dead and dying of both species.

Automontage images of N. californicus  HNS  may be viewed at antweb. org.

The wingless phorid fly, Xanionotum hystrix Brues (Diptera: Phoridae  HNS  ), has been associated with a colony of N. californicus  HNS  collected in San Diego County, California (J. H. Hunt, pers. comm.).

MHNG

Switzerland, Geneva, Museum d'Histoire Naturelle

MHNG

Switzerland, Geneva, Museum d'Histoire Naturelle

UCDC

USA, California, Davis, University of California, R.M. Bohart Museum of Entomology

UCDC

USA, California, Davis, University of California, R.M. Bohart Museum of Entomology

GCSC

Gordon C. Snelling

GCSC

Gordon C. Snelling

LACM

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

LACM

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

USNM

USA, Washington D.C., National Museum of Natural History, [formerly, United States National Museum]

USNM

USA, Washington D.C., National Museum of Natural History, [formerly, United States National Museum]

UCRC

USA, California, Riverside, University of California

UCRC

USA, California, Riverside, University of California

JTLC

John T. Longino

JTLC

John T. Longino