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Figure 11. Metrichia mastelleri, n in New species of microcaddisflies (Trichoptera: Hydroptilidae) from the western United States, Canada, Mexico and Belize

Figure 11. Metrichia mastelleri, n. sp. Adult male. A. Head and thorax, dorsal view; B. Maxillary palp, ventral view; C. Abdominal segments V and VI, dorsal view.

Figure 13. Metrichia mastelleri, n in New species of microcaddisflies (Trichoptera: Hydroptilidae) from the western United States, Canada, Mexico and Belize

Figure 13. Metrichia mastelleri, n. sp. Male genitalia. A. Lateral view; B. Ventral view; C. Dorsal view; D. Phallus, lateral; E. Phallus, dorsal.

Figure 5. Neotrichia palitla, n in New species of microcaddisflies (Trichoptera: Hydroptilidae) from the western United States, Canada, Mexico and Belize

Figure 5. Neotrichia palitla, n. sp. Male genitalia. A. Lateral view; B. Ventral view; C. Dorsal view; D. Phallus, dorsal.

Figure 7. Neotrichia pinnacles, n in New species of microcaddisflies (Trichoptera: Hydroptilidae) from the western United States, Canada, Mexico and Belize

Figure 7. Neotrichia pinnacles, n. sp. Male genitalia. A. Lateral view; B. Ventral view; C. Dorsal view; D. Phallus, dorsal.

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Figures 10–23. Xalitla species. 10–11 in Description of a new species of Xalitla Lane, 1959 (Cerambycidae: Cerambycinae: Neoibidionini) from western Mexico

Figures 10–23. Xalitla species. 10–11) Xalitla azteca, male. 10) Dorsal habitus. 11) Lateral habitus. 12–13) Xalitla genuina, paratype male. 12) Dorsal habitus. 13) Lateral habitus. 14–15) Xalitla lezamai, holotype male. 14) Dorsal habitus. 15) Lateral habitus. 16–18) Eyes, side view, male. 16) Xalitla azteca. 17) Xalitla genuina, paratype. 18) Xalitla lezamai, holotype. 19–23) Xalitla genuina, female. 19) Dorsal habitus. 20) Ventral habitus. 21) Lateral habitus. 22) Head, frontal view. 23) Head, side view.

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Figures 1–9. Xalitla species. 1–5 in Description of a new species of Xalitla Lane, 1959 (Cerambycidae: Cerambycinae: Neoibidionini) from western Mexico

Figures 1–9. Xalitla species. 1–5) Xalitla limoni, holotype female. 1) Dorsal habitus. 2) Ventral habitus. 3) Lateral habitus. 4) Head, frontal view. 5) Head, lateral view. 6–9) Xalitla azteca, holotype female. 6) Dorsal habitus. 7) Ventral habitus. 8) Lateral habitus. 9) Head, lateral view.

Fig. 51 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones

Fig. 51. Electrophoretic phenotypes of proteins of several subspecies of C. tigris. Left. ESTD polymorphism in C. t. septentrionalis. The fluorescent patterns were photographed in ultraviolet light. Right. Banding patterns of PGM2 that distinguish septentrionalis (SEP, genotype cc) from punctilinealis (PUN genotype dd), marmoratus (MAR, genotype dd), and aethiops (genotype dd, not illustrated). Arrows indicate sites of sample application; anode is to the right.

Fig. 49 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones

Fig. 49. The contact region. Horizontal lines represent range of pure punctilinealis (coloration indices of 0–0.1; table 24), and vertical lines pure marmoratus (coloration indices of 0.8–1.0). Sites in between (2–5, 18, 19, 26, and 41–44) represent primarily hybrids (coloration indices of 0.11–0.79).

Fig. 52 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones

Fig. 52. Differences in the tissue distribution of lactate dehydrogenase, a tetramer. Top (six lanes) LDH1 predominates in heart. Bottom (five lanes). Both LDH1 and LDH2 are active in liver and the banding patterns include numerous isozymes composed of subunits of both. Note the fivebanded patterns for LDH1 for heterozygous diploid C. neomexicanus (NEO) and a triploid hybrid (HYB) of neomexicanus × tigris. In the heart tissue, LDH1 genotype ab for neomexicanus, the isozymes approximate activities of 1:4:6:4:1. For the triploid hybrid with genotype aab, the faster migrating isozymes stain most intensely (activities approximate the theoretically expected ratio of 16:32:24:8:1). These patterns are consistent with the origin of the hybrid from a mating between C. neomexicanus (NEO) and C. t. punctilinealis (PUN). Other abbreviations are: UNI, C. uniparens; MAR, C. t. marmoratus. Arrow indicates sites of sample application; anode is to the right.

Fig. 47 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones

Fig. 47. Relationship between body length and number of eggs per clutch in specimens of C. tigris from the contact region. MAR, pure marmoratus; PUN, pure punctilinealis; HYB, hybrids. Data are summarized in table 30 and figure 48.

Fig. 48 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones

Fig. 48. Relationship between body length and number of eggs per clutch (same data as table 30 and fig. 47), showing 95% confidence intervals (broken lines) for each plot. M, pure marmoratus P, pure punctilinealis; H, hybrids.

Fig. 46 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones

Fig. 46. Polygons and letters representing the scores of 27 specimens of C. tigris on the first two principal components extracted from the correlation matrix of nine morphological characters observed in the southern transect (table 28). P represents 9 punctilinealis from site 36; M, 9 marmoratus from site 48; and H, 9 hybrids from site 42, the center of the southern hybrid zone (fig. 5).

Fig. 44 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones

Fig. 44. Polygons and letters representing the scores of 39 specimens of C. tigris on the first two principal components extracted from the correlation matrix of nine morphological characters observed in the northern transect (table 28). P represents 10 punctilinealis from site 1; M, nine marmoratus from site 7; and H, 20 hybrids from site 3, the center of the northern hybrid zone (fig. 4).

Fig. 45 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones

Fig. 45. Polygons and letters representing the scores of 85 specimens of C. tigris on the first two principal components extracted from the correlation matrix of nine morphological characters observed in the central transect (table 28). P represents 29 punctilinealis from site 20; M, 26 marmoratus from site 29; and H, 30 hybrids from site 26, the center of the central hybrid zone (fig. 5).

Fig. 43 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones

Fig. 43. Scores of sample means for the first principal component extracted from the variance– covariance matrix of arcsine squareroottransformed frequencies of marmoratus alleles at the seven highly polymorphic loci (IDDH, sMDHP, EST2, PEPB, PEPD, GPI, and TF) plotted against sample locality on all three transects of the hybrid zones, as in figure 42. Data are from tables 6, 8, and 10.

Fig. 50 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones

Fig. 50. Grassland WNW of Lordsburg, looking to the NW toward the Summit Hills that are immediately north of site 12 (fig. 49). Dark band of vegetation at the base of the hills is the creosote community. Thin diagonal line across grassland is the railroad, with shrubs along the tracks. Aerial photograph taken on 1 September 1990.

Fig. 41 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones

Fig. 41. Mean frequency of the marmoratus nuclear alleles averaged over all four diagnostic loci of proteins, of the marmoratus 12S ribosomal mtDNA haplotypes, and of the marmoratus coloration hybrid indices at sites along the southern transect (fig. 5). Site 42 represents the center of the southern hybrid zone. Compare with figure 32.

Fig. 42 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones

Fig. 42. Scores of sample means for the first principal component extracted from the variance– covariance matrix of arcsine squareroottransformed frequencies of marmoratus coloration characters plotted against sample locality on all three transects of the hybrid zones: northern (sites 1–7), central (sites 20–30 + 29), and southern (sites 36–40, 42, 44, 46, and 48). Numbers plotted are the collecting site numbers. Data are summarized in table 24.

Fig. 40 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones

Fig. 40. Mean frequency of the marmoratus nuclear alleles averaged over all four diagnostic loci of proteins, of the marmoratus 12S ribosomal mtDNA haplotypes, and of the marmoratus coloration hybrid indices at sites along the central transect (fig. 5). Site 26 represents the center of the central hybrid zone. Compare with figure 31.

Fig. 39 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones

Fig. 39. Mean frequency of the marmoratus nuclear alleles averaged over all four diagnostic loci of proteins, of the marmoratus 12S ribosomal mtDNA haplotypes, and of the marmoratus coloration hybrid indices at sites along the northern transect (fig. 4). Site 3 represents the center of the northern hybrid zone. Compare with figure 30.