Cycadophila

Xu, Guang, Tang, William, Skelley, Paul, Liu, Nian & Rich, Stephen, 2015, Cycadophila, a new genus (Coleoptera: Erotylidae: Pharaxonothinae) inhabiting Cycas debaoensis (Cycadaceae) in Asia, Zootaxa 3986 (3), pp. 251-278 : 257

Key to species of adult Cycadophila occurring with Cycas debaoensis

1 Head dorsally flattened, clypeus flat in lateral view ( Figs. 2 C, 5C); ventral interocular distance <1/3 head width; pronotal angles rounded, surface near anterior angle more convex, lateral margins evenly arched most of length, basally appearing rounded ( Figs. 2 D, 5A); body always yellow-brown, elytra never solid color, with dark maculation along part of suture.... 2

- Head appearing dorsally ‘swollen’, clypeus convex in lateral view ( Figs. 8 E, 9E); ventral interocular distance> 1/2 head width; pronotal angles more sharply angulate, surface near angle more reflexed, lateral margin parallel most of length, basally appearing more quadrate ( Figs. 8 A, 9C); body dark brown, elytra unicolored or with dark maculation along part of suture and sometimes part of lateral margin.......................................................................... 3

2 Protibia distinctly dilated distally (more prominent in males), with short, stout, ventrally directed spinule fringe ( Fig. 3 E); supraocular stria long, reaching anterior inner angle of eye ( Fig. 3 C); dark elytral mark, usually bluntly rounded anteriorly ( Fig. 2 A).................................................................... Cycadophila debaonica , n. sp.

- Protibia narrow distally, with fine distally directed setal fringe, without stout spinules ( Fig. 6 D); supraocular stria short, not reaching middle of eye ( Fig. 6 A); elytral mark usually acutely narrowed anteriorly ( Fig. 5 A)..................................................................................................... Cycadophila fupingensis , n. sp.

3 Body larger, length> 4.0 mm, entirely brown, lacking color pattern ( Fig. 8 A); supraocular stria strong, reaching middle of eye; male hind tibial inner swelling large, angulate ( Fig. 8 F); China, India, Thailand............ Cycadophila nigra (Gorham)

- Body smaller, length <3.5mm, with or without color pattern ( Fig. 9 A); supraocular stria weak, occupying basal 1/4 of eye; male hind tibial inner swelling small, rounded ( Figs. 10 B–C); China.............. Cycadophila yunnanensis (Grouvelle)

Figures

FIGURE 2. Photographs of Cycadophila debaonica adult male: A – C) Dorsal, ventral and lateral habitus; D) Head to base of elytra, dorsal view; E) Male genitalia.

FIGURE 3. SEMs of Cycadophila debaonica (A, C female; B, D, E male): A) Head, pronotum and elytral base, dorsal view; B) Thorax, ventral view; C) Head and antenna, dorsal view; D) Head, ventral view; E) Protibia and tarsus, ventral view.

FIGURE 5. Photographs of Cycadophila fupingensis adult male: A – C) Dorsal, ventral and lateral habitus; D) Head and prosternum, ventral view; E) Male genitalia.

FIGURE 6. SEMs of Cycadophila fupingensis: A) Head, pronotum and elytral base, dorsal view; B) Thorax, ventral view; C) Head, ventral view; D) Protibia and tarsus, ventral view.

FIGURE 8. Photographs of Cycadophila nigra, lectotype female: A – B) Dorsal and ventral habitus; C) Head to metaventrite, ventral view; D) Labels of lectotype. E – G) Non-type specimen from India; E) SEM of head and pronotum; F) Male hind leg, ventral view; G) Male genitalia.

FIGURE 9. Photographs of Cycadophila yunnanensis types: A) Six syntypes (red arrow pointing to lectotype, rest are paralectotypes); B) Label of types; C – E) Lectotype male dorsal, ventral, and lateral habitus; F) Head to metaventrite, ventral view of lectotype; G) Lectotype male genitalia.

FIGURE 10. Photographs of Cycadophila yunnanensis variation from CHINA: Guangxi, Dingye. A) Female; B – C) Male (note weakly curved metatibia).