Sapotes, Casey, 1888

Gotoh, Hiroki & Lavine, Laura C., 2007, Fig. 3 in Genetic Control of Color Polymorphism in the Stag Beetle Cyclommatus metallifer Boisduval (Coleoptera: Lucanidae), The Coleopterists Bulletin 24 (2), pp. 208-223 : 211-215

Key to species of the genus Sapotes

1. Protibia with five or more teeth on inner margin, with one or more teeth on basal third ( Figs. 2A and 2B ); mesotibia with one or more teeth on inner margin; metepisternum reaching edge of hind coxa; length 4.5–6.4 mm ... 2

1 9. Protibia with fewer than five distinct teeth on inner margin, teeth often small and partially covered with scales, not found on basal third ( Figs. 2C, 2D and 2E ); mesotibia with one or no teeth on inner margin; metepisternum variable, often not reaching edge of hind coxae; length 2.9–5.3 mm ......... 3

2. Setae on elytra and prothorax erect and relatively straight, greater than twice length of second funicular segment (greater than 0.2 mm) ( Figs. 3I and 3J ); mesotibia with two or more teeth on inner margin; apical 1/4 of metafemur not uniformily white; length 4.7–5.8 mm;............ S. longipilis

2 9. Setae on elytra and prothorax decurved, less than or equal in length to second funicular segment (less than 0.2 mm) ( Figs. 3G and 3H ); mesotibia usually with two or fewer teeth on inner margin; apical 1/4 of metafemur solid white; possibly parthenogenetic; length 5.8–6.4 mm ..... S. puncticollis

3. Setae on elytral declivity two to three times length of second funicular segment (ca. 0.25 mm), relatively straight, fine and dark brown to black ( Figs. 3C and 3D ); scutellum small, circular, or often not visible; scales on elytra and prothorax rounded and regularly shaped; metepisternum usually reaching base of metacoxae; male median lobe strongly sclerotized and black, tip not curved abruptly downward, with sclerotized, circular process at base of endophallus ( Fig. 4E ); body length 2.9–3.7 mm ........................................................................ S. setosus sp. nov.

3 9. Setae on elytral declivity less than or equal to length of second funicular segment (0.1 mm or less), curved ( Figs. 3A, 3B, 3E and 3F ); scutellum apparent and triangular; metepisternum poorly defined distally and not reaching base of metacoxae; in sexual species male median lobe with tip curved abruptly downward, without sclerotized circular process at base of endophallus ( Fig. 4A ); body length 3.9–5.3 mm .............................. 4

4. Scales of prothorax and elytra irregularly shaped and often indistinct, with grainy appearance on prothorax and elytra; sides of elytra in dorsal view uniformily curved throughout ( Figs. 3A and 3B ); basal margin of elytra only slightly raised, and rounded; sexual, males with large, highly sclerotized, median lobe ( Figs. 4A and 4B )............... S. sordidus sp. nov.

4 9. Scales of prothorax and elytra broadly rounded, shiny often with metallic sheen ventrally; sides of elytra in dorsal view more parallel-sided for middle 3/4 ( Figs. 3E and 3F ); basal margin of elytra abruptly raised with sharp edge; possibly parthenogenetic........................ S. caseyi sp. nov.

Figures

Fig. 2. A–E. Size and arrangement of teeth on inner margin of protibia of species of Sapotes: A. S. longipilis; B. S. puncticollis; C. S. caseyi; D. S. setosus; E. S. sordidus.

Fig. 3. A–J, habitus of species of Sapotes. A. lateral view of male S. sordidus (4.46 mm); B. dorsal view of male S. sordidus; C. lateral view of male S. setosus (3.36 mm); D. dorsal view of male S. setosus; E. lateral view of female S. caseyi (4.32 mm); F. dorsal view of female S. caseyi; G. lateral view of female S. puncticollis (5.09 mm); H. dorsal view of female S. puncticollis; I. lateral view of female S. longipilis (5.04 mm); J. dorsal view of female S. longipilis.

Fig. 4. A–H, male genitalia of Sapotes. Reference lines to the left of figures equal to 0.5 mm. A. dorsal view of median lobe of S. sordidus; B. lateral view of median lobe of S. sordidus; C. dorsal view of spiculum gastrale of S. sordidus; D. phallobase of S. sordidus; E. dorsal view of median lobe of S. setosus; F. lateral view of median lobe of S. setosus; G. dorsal view of spiculum gastrale of S. setosus; H. phallobase of S. setosus.