Scymnus (Pullus) fraternus LeConte, 1852

Nestor-Arriola, Jorge I., Clark, Shawn M. & Niño-Maldonado, Santiago, 2022, Taxonomic and Distributional Notes on the Genus Scymnus Kugelann, 1794 (Coleoptera: Coccinellidae) in Mexico, The Coleopterists Bulletin 76 (3), pp. 299-328 : 307

Scymnus (Pullus) fraternus LeConte, 1852 Figs. 3 , 19–21

Scymnus fraternus LeConte 1852: 138 . Crotch 1874b: 264. Horn 1895: 101. Stehr 1930: 49. Wingo 1952: 31. Chapin 1973: 1072.

Scymnus haemorrhous LeConte 1852: 138 . Crotch 1874b: 264. Horn 1895: 101.

Scymnus (Pullus) creperus var. fraternus : Casey 1899: 140. Leng 1920: 213.

Scymnus (Pullus) haemorrhous : Casey 1899: 140. Leng 1920: 213. Wilson 1927: 170. Korschefsky 1931: 159.

Scymnus dentipes Fall 1901: 234 . Fall 1904: 176.

Scymnus (Pullus) fraternus : Wingo 1952: 31. Chapin 1973: 1071. Chapin 1974: 24. Gordon 1976: 109. Gordon 1985: 183.

Scymnus coloratus Gorham : Juárez-Monroy 1986: 26 (misidentification).

Diagnosis: Length 2.3 to 2.5 mm; width 1.7 to 2.0 mm. Dorsal color largely black; head yellow, orange or red; pronotum with anterior and lateral margins yellow, orange or red; elytra with apical sixth yellow, orange or red ( Fig. 3 ). Ventral color black, except legs, antennae, mouthparts and last three ventrites yellow, orange or red. First ventrite of male densely punctate at central part; fifth ventrite slightly emarginate; sixth ventrite slightly emarginate, depressed. Male genitalia with penis guide wide, short, asymmetrical ( Figs. 19, 20 ); penis robust in apical two-thirds ( Fig. 21 ).

Material Examined: Nine specimens ( FIC, CIUM) .

Distribution: North America ( Gordon 1976, 1985). In Mexico, this species has been collected from the states of Morelos and Veracruz.

New Localities: DURANGO:(2♀, 2♂) Mezquital ( FIC) . GUERRERO: (4♂) Taxco ( CIUM) . ZACATECAS: (1♂) Teúl de González ( FIC) .

Biology: In Mexico, this species has been collected between 920 and 2,014 m altitude, and in the biome of deciduous forest.

Discussion: The male genitalia illustrated by Juárez-Monroy (1986) for S. coloratus in actuality match those of S. (P.) fraternus . The locality cited by the author is in Veracruz.

Figures

Figs. 1–4. Scymnus spp., dorsal habitus. 1) S. pacificus; 2) S. pulvinatus; 3) S. fraternus; 4) S. trulla. Scale bars: 2.0 mm.

Figs. 16–21. Scymnus spp., male genitalia (figures are not to same scale). S. enochrus: 16) Tegmen, lateral view; 17) Tegmen, ventral view; 18) Penis. S. fraternus: 19) Tegmen, lateral view; 20) Tegmen, ventral view; 21) Penis.