Cycadophila (Strobilophila)

Skelley, Paul, Xu, Guang, Tang, William, Lindström, Anders J., Marler, Thomas, Khuraijam, Jibankumar Singh, Singh, Rita & Rich, Stephen, 2017, Review of Cycadophila Xu, Tang & Skelley (Coleoptera: Erotylidae: Pharaxonothinae) inhabiting Cycas (Cycadaceae) in Asia, with descriptions of a new subgenus and thirteen new species, Zootaxa 4267 (1), pp. 1-63 : 11

Cycadophila (Strobilophila)

16(1). Protibia notably dilated toward apex with stout marginal spines on lateral apical 1/3 separated by less than their length ( Figs. 2 F, 20D); with distinct furrow on each side of pronotal base ( Fig. 19 A)........................................ 17

- Protibia weakly dilated distally with stout marginal spines on lateral apical 1/2 separated by their length or more ( Figs. 2 G, 21D); lacking or with greatly reduced furrow on each side of pronotal base ( Fig. 21 A); Thailand.............................................................................................. Cycadophila (S.) yangi , new species

17(16). Submental-gular suture indicated by weakly arcuate row of punctures; basal margin of pronotum nearly straight from side to side, weakly convex, lacking weak angular concavities where pronotal discal grooves join margin; scutellar shield more pentagonal; female with terminal abdominal ventrite convex apically, unmodified ( Figs. 16 G, 19G); male flagellum and penile struts longer, length of median lobe to penile strut 1:5; Thailand, India.......................................... 18

- Submental-gular suture indicated by distinctly arcuate row of punctures; basal margin of pronotum sinuate, with distinct but shallow angular concavities where pronotal discal grooves join margin; scutellar shield more transverse; female with terminal abdominal ventrite concave apically, modified ( Fig. 17 E); male flagellum and penile struts shorter, length of median lobe to penile strut 2:7; Vietnam............................................................ C. (S.) hiepi , new species

18(17). Posterior lateral margin of pronotum straight to posterior angle which may have a very small indistinct projection behind pore ( Fig. 18 A); no sexual dimorphism visible on terminal abdominal ventrite; inhabiting Cycas sp. on karst towers near the city of Kanchanaburi, Kanchanaburi province in Thailand at elevations below 100 m. ............ C. (S.) kwaiensis , new species

- Posterior lateral margin of pronotum distinctly curved inward at posterior angle which has a distinct, small acute projection behind pore ( Figs. 16 A,D, 19A); females with terminal abdominal ventrite with a small area of fine punctures on apical medial surface, males evenly coarsely punctate throughout; occurring in widespread localities and hosts..................... 19

19(18). Elytral striae weakly impressed, giving intervals a weakly convex appearance, most evident on middle of disc; female terminal abdominal ventrite with apical medial surface glossy, glabrous and finely punctate, distinctly different from rest of surface, males with this surface entirely setose and coarsely punctate ( Figs. 19 F–G) similar to rest of surface; inhabiting Cycas elephantipes , C. clivicola lutea , C. pectinata , C. petraea and C. tansachai above 300 m elevation in Thailand............................................................................................ C. (S.) tansachai , new species

- Elytral striae not impressed, intervals appearing flat; both male and female terminal abdominal ventrite with apical medial surface setose, females with finer punctures on apical medial surface than males ( Figs. 16 F–G); inhabiting Cycas pectinata , Assam, India................................................................ C. (S.) assamensis , new species

Figures

FIGURE 2. Key characters of adults: photographs of lateral head and pronotal margin: A) Cycadophila (C.) fupingensis; B) C. (Strobilophila) tansachai; C) C. (C.) yunnanensis; SEM of protibia, ventral view: D) C. (C.) fupingensis; E) C. (C.) debaonica; F) C. (S.) tansachai; G) C. (S.) yangi; photographs of mesotibia, ventral view: H) C. (C.) debaonica female; I) C. (C.) debaonica male; J) C. (C.) lata male; photographs of left half of pronotum: K) C. (C.) collina; L) C. (C.) debaonica; M) C. (S.) kwaiensis; N) C. (S.) tansachai; photographs of mesofemur of major male: O) C. (C.) collina ex Vietnam; P) C. (C.) debaonica.

FIGURE 16. Photographs of Cycadophila (Strobilophila) assamensis, female holotype: A) dorsal habitus; B) ventral habitus; C) lateral habitus; D) head and prosternum, ventral; E) male genitalia; F) male paratype, abdominal ventrite V; G) female holotype, abdominal ventrite V.

FIGURE 17. Photographs of Cycadophila (Strobilophila) hiepi, paratype: A) dorsal habitus, female; B) ventral habitus, female; C) lateral habitus, female; D) head and prosternum, ventral, female; E) terminal abdominal segments, female; F) male genitalia.

FIGURE 18. Photographs of Cycadophila (Strobilophila) kwaiensis, A) dorsal habitus; B) ventral habitus; C) lateral habitus; D) head and prosternum, ventral; E) male genitalia.

FIGURE 19. Photographs of Cycadophila (Strobilophila) tansachai, paratypes: A) dorsal habitus; B) ventral habitus; C) lateral habitus; D) head and prosternum, ventral; E) male genitalia; F) male abdominal ventrite V; G) female abdominal ventrite V; H – I) inflated endophallus, lateral and ventral views.

FIGURE 21. Photographs of Cycadophila (Strobilophila) yangi, paratype: A) dorsal habitus; B) ventral habitus; C) lateral habitus; D) head and protibia, ventral; E) male genitalia.