Nesocyrtosoma Marcuzzi

Hopp, Katie J. & Ivie, Michael A., 2009, A Revision Of The West Indian Genus Nesocyrtosoma Marcuzzi (Coleoptera: Tenebrionidae), The Coleopterists Bulletin (mo 8) 63, pp. 1-138 : 15-16

Key to Species of Nesocyrtosoma Marcuzzi

1 Flight wings vestigial or absent; metaventrite shorter than diameter of mesocoxa; ( Nesocyrtosoma s. s. species-group)...................... 2

19 Flight wings fully developed; metaventrite longer than diameter of mesocoxa................................................................. 13

2 (1) Strial punctures of the elytron medium in size, strongly impressed, with or without an impressed stria connecting the puncture rows (cf. Figs. 95 , 112, 116 )........................................................ 3

29 Strial punctures of the elytron small, weakly impressed, or appearing absent; puncture rows with or without an impressed stria (cf. Figs. 122 , 128 )............................................................. 6

3 (2) Strial punctures of the elytron distinctly separated, not connected to each other or by an impressed striae ( Figs. 112, 116 ).................. 4

39 Strial punctures of the elytron connected by an impressed stria or carinate ( Figs. 95 , 124 , 134 ).............................................. 5

4 (3) Prosternal process apically truncate ( Fig. 119 ); apex of elytra strongly tapered; antennomeres 6–10 apically enlarged, forming a loose, elongate club; Cuba....................... N. inflatum (Marcuzzi)

49 Prosternal process apically rounded ( Fig. 115 ); apex of elytra weakly tapered; antennomeres 7–10 apically enlarged, forming a loose, elongate club; Hispaniola........... N. neibaense Hopp and Ivie , n. sp.

5 (39) Strial punctures of the elytron placed in individual depressions, causing interstriae to be raised, almost carinate ( Fig. 124 ), forming a reticulate pattern; Haiti............. N. scabrosum Hopp and Ivie , n. sp.

59 Strial punctures of the elytron round, deeply impressed, interstriae weakly convex, punctures connected by a weakly impressed stria ( Fig. 95 ); Cuba..................................... N. gebieni (Marcuzzi)

6 (29) Body elongate, slender, weakly convex, dark bronze in color, rows of small elytral punctures connected by deeply impressed striae ( Fig. 128 ); Montserrat................. N. lacrima Hopp and Ivie , n. sp.

69 Body short, broad, extremely convex, black in color, elytral striae weakly impressed as small punctures without impressed striae, punctures sometimes appearing absent ( Figs. 132 , 108 )............... 7

7 (69) Strial punctures of the elytron extremely small, densely placed in rows, appearing almost connected at lower magnification ( Fig. 104 ) 8

79 Strial punctures of the elytron small, sparsely placed in rows, appearing distinctly separated by 2.0–1.0 diameters; or seemingly absent ( Figs. 85 , 90,108)................................................. 11

8 (7) Mesoventrite broad antero-posteriorly ( Fig. 135 ); anterior angles of pronotum weakly produced; lateral edge of pronotum evenly convex to base ( Fig. 134 ); Hispaniola........ N. simplex Hopp and Ivie , n. sp.

89 Mesoventrite thin antero-posteriorly ( Fig. 123 ); anterior angles of pronotum moderately produced; lateral edge of pronotum sinuate at base ( Fig. 122 )............................................................. 9

9 (89) Prosternal process with slight medial apical bump ( Fig. 103 ); Cuba.............................................. N. tumefactum (Zayas)

99 Prosternal process without slight medial apical bump................ 10

10 (99) Elytral interstriae densely punctate; anterior angles of pronotum widely rounded with weak marginal bead ( Fig. 106 ); males with ventral longitudinal patch of setae extending from apex to approximately 1/4 the length of the metatibia ( Fig. 42 ); Cuba........................................................... N. turquinense (Zayas)

109 Elytral interstriae sparsely punctate; anterior angles of pronotum narrowly rounded with strong marginal bead ( Fig. 122 ); males with tooth near apex of metatibia ( Fig. 46 ); Hispaniola......................................................................... N. merkli (Marcuzzi)

Figures

Figs. 95–103. 95–98: Nesocyrtosoma gebieni. 95) Habitus, dorsal; 96) Habitus, lateral. 97) Pronotum; 98) Thoracic sterna. 99–103: Nesocyrtosoma tumefactum. 99) Habitus, dorsal; 100) Habitus, lateral; 101) Pronotum; 102) Thoracic sterna; 103) Lateral view of prosternal process showing apical, medial bump.

Figs. 112–119. 112–115: Nesocyrtosoma neibaense. 112) Habitus, dorsal; 113) Habitus, lateral; 114) Pronotum; 115) Thoracic sterna. 116–119: Nesocyrtosoma inflatum. 116) Habitus, dorsal; 117) Habitus, lateral; 118) Pronotum; 119) Thoracic sterna.

Figs. 120–127. 120–123: Nesocyrtosoma merkli. 120) Habitus, dorsal; 121) Habitus, lateral; 122) Pronotum; 123) Thoracic sterna. 124–127: Nesocyrtosoma scabrosum. 124) Habitus, dorsal; 125) Habitus, lateral; 126) Pronotum; 127) Thoracic sterna.

Figs. 128–135. 128–131: Nesocyrtosoma lacrima. 128) Habitus, dorsal; 129) Habitus, lateral; 130) Pronotum; 131) Thoracic sterna. 132–135: Nesocyrtosoma simplex. 132) Habitus, dorsal; 133) Habitus, lateral; 134) Pronotum; 135) Thoracic sterna.

Figs. 104–111. 104–107: Nesocyrtosoma turquinense. 104) Habitus, dorsal; 105) Habitus, lateral; 106) Pronotum; 107) Thoracic sterna. 108–111: Nesocyrtosoma hispaniolae. 108) Habitus, dorsal; 109) Habitus, lateral; 110) Pronotum; 111) Thoracic sterna.

Figs. 85–94. 85–89: Nesocyrtosoma bestiola. 85) Habitus, dorsal; 86) Habitus, lateral; 87) Pronotum; 88) Thoracic sterna; 89) Prosternal process forming shelf at base. 90–94: Nesocyrtosoma ferruginea. 90) Habitus, dorsal; 91) Habitus, lateral; 92) Pronotum; 93) Thoracic sterna; 94) Male metatibia.

Figs. 39–49. Male metatibia of the Nesocyrtosoma s. s. species-group species. 39) Nesocyrtosoma bestiola; 40) N. ferruginea; 41) N. tumefactum; 42) N. turquinense; 43) N. hispaniolae; 44) N. neibaense; 45) N. inflatum; 46) N. merkli; 47) N. scabrosum; 48) N. lacrima; 49) N. simplex.