Carcinops gilensis ( LeConte, 1851 ), 1855

Reese, Ellen M. & Swanson, Alexander P., 2017, A Review of the CactophilicCarcinopsMarseul (Coleoptera: Histeridae) of the Sonoran Desert Region, with Descriptions of Six New Species, The Coleopterists Bulletin 71 (1), pp. 159-190 : 167-168

Carcinops gilensis ( LeConte, 1851) ( Figs. 9B , 10B , 12 )

Paromalus gilensis LeConte 1851: 164 . Carcinops gilensis (LeConte) ( Marseul 1855) .

Diagnosis. This species is distinguished by the following combination of characters: Head: Frontal stria terminating at clypeolabral suture ( Fig. 3A ); marginal epistomal stria absent. Pronotum: Marginal stria moderately divergent from anterior edge along midline ( Fig. 4A ). Elytra: Dorsal stria 5 and sutural stria shorter than dorsal striae 1–4, terminating in basal third of elytra ( Fig. 8 ); internal and external subhumeral striae absent. First abdominal ventrite: One stria present, smooth surface texture ( Fig. 2A ). Aedeagus: Parameres moderately sinuate with slightly rounded tips ( Fig. 9B ).

Geographic Distribution and Natural History. Carcinops gilensis is known in the USA from southern Arizona and southern California and in Mexico

from Sonora and the Baja California Peninsula. It is typically associated with the necrotic stems of C. gigantea , P. pringlei , and F. cylindraceus .

Material Examined. 405 specimens. MEXICO: Sonora: El Sahuaral nr. Guaymas, 27.99109°N 110.83943°W, sea level, 20.III.2007, ex. necrotic Pachycereus pringlei, A. Swanson ( APS, 4; DNA vouchers: APS 147, APS 167). Baja California Sur: El Arco Mine, 24.VI.1938, Michelbacher and Ross ( CASC, 29); 15 mi. N. San Ignacio, 24.VI. 1938. Michelbacher and Ross ( CASC, 16); nr. La Paz, 23.8379°N 110.1908°W, sea level, 8.XII. 2012, ex. necrotic Pachycereus pringlei, E. Reese ( EMR, 4; DNA voucher: EMR 030); nr. La Paz, 24.4347°N 110.6830°W, sea level, 9.XII.2012, ex. necrotic Pachycereus pringlei, E. Reese ( EMR, 1; DNA voucher: EMR 114); nr. La Paz, 23.83567°N 110.28077°W, sea level, 25.VI.2013, ex. necrotic Pachycereus pringlei, E. Reese ( EMR, 3; DNA voucher: EMR 117); nr. La Paz, 23.8259°N 110.28036°W, sea level, 25.VI.2013, ex. necrotic Pachycereus pringlei, E. Reese ( EMR, 10; DNA vouchers: EMR 180, EMR 181); nr. La Paz, 24.29981°N 110.31649°W, sea level, 26.VI.2013, ex. necrotic Lophocereus schottii, E. Reese ( EMR, 1; DNA voucher: EMR 239); nr. La Paz, 24.31059°N 110.31549°W, sea level, 26.VI.2013, ex. necrotic Pachycereus pringlei, E. Reese ( EMR, 4); nr. La Paz, 24.29934N 110.31834°W, sea level, 27.VI.2013, ex. necrotic Lophocereus schottii, E. Reese ( EMR, 2). USA: California: San Diego Co., Anza Borrego State Park, 33.1039°N 116.1698°W, necrotic Ferocactus sp. (M. Caterino per. comm.), 2.IV.2005, M. Caterino ( SBMNH, 5); Anza- Borrego Desert State Park, 33.1466696°N 116.276726°W, sea level, 25.III.2013, ex. necrotic Ferocactus cylindraceus, E. Reese ( EMR, 15; FMNH, 1; CASC, 1; DNA vouchers: EMR 353, EMR 354); Anza-Borrego Desert State Park, 33.1466696°N 116.276726°W, sea level, 12.IV.2014, ex. necrotic Ferocactus cylindraceus, E. Reese ( EMR, 15); Anza- Borrego Desert State Park, 33.099932°N 116.465996°W, sea level, 12.IV.2014, ex. necrotic Ferocactus cylindraceus, E. Reese ( EMR, 105; FMNH, 3; CASC, 3; LSAM, 4; DNA vouchers: EMR 401, EMR 559, EMR 560, EMR 61); Riverside Co., III.20.1918 ( CASC, 24). California: “[gold disk], “ Type 6907” [red label], “P. Gilensis LeC” ( MCZ, 1). Arizona: Pima Co., Santa Catalina Mts., 32.3118°N 110.7179°W, 1,200m, 21.IX.2006, ex. necrotic Carnegiea gigantea, A. Swanson ( APS, 5; DNA voucher: APS 110); Tucson, various localities, dates and collectors ( CASC, 111; UAIC, 8); Phoenix, various localities, dates and collectors ( CASC, 8); Prescott, 1.IX.1928, F. W. Nunenmacher ( CASC, 3); Superior, 15.II.1934, Bryant ( CASC, 17); Wheatfields nr. Globe, 1.IV.1932, D. K. Duncan ( CASC, 3).

Figures

Fig. 9. Aedeagal morphology of Carcinops species, with parameres toward the top of the page and basal pieces toward the bottom. A) C. consors, B) C. gilensis, C) C. corticalis, D) C. papagoanus, E) C. opuntiae, F) C. curtus, G) C. rugulus, H) C. torquatus, I) C. yaqui, J) C. wenzeli. Photographs by A. Swanson.

Fig. 10. Dorsal photographs showing head and pronotal morphology of Carcinops species. A) C. consors, B) C. gilensis, C) C. corticalis, D) C. papagoanus, E) C. curtus, F) C. yaqui, G) C. kumeyaay, H) C. opuntiae. Photographs by E. Reese.

Fig. 12. Carcinops gilensis morphology. A) Dorsal view, B) Ventral view. Photographs by E. Reese.

Figs. 3–6. Head morphology of Carcinops kumeyaay, with arrows showing key character states: 3) C. kumeyaay; 4) C. corticalis; 5) C. curtus. Photographs by E. Reese. 6) Ground punctation patterns on the pronotum of species in the subgenus Carcinopsida (Carcinops wenzeli). Photograph by A. Swanson.

Figs. 7–8. 7) Long elytral striae highlighted on Carcinops kumeyaay; 8) Short fifth and sutural elytral striae highlighted on Carcinops yaqui. Photographs by E. Reese.

Fig. 2. Variation of the lateral disc of the first abdominal ventrite in Carcinops species. A) Single stria present (C. torquatus), B) Single stria with microsculptures present (C. rugulus), C) Bistriate (C. consors), D) Bistriate (C. yaqui), E) Tristriate (C. wenzeli). Photographs by A. Swanson.