Neochlamisus Karren, 1972

Chamorro-Lacayo, Maria & Konstantinov, Alexander, 2009, Synopsis of warty leaf beetle genera of the world (Coleoptera, Chrysomelidae, Cryptocephalinae, Chlamisini), ZooKeys 8 (8), pp. 63-88 : 81-83

Neochlamisus Karren

( Figs. 1 J, K ; 2 I , J; 3 I , J; 4 I , J; 5 I , J; 7 A , C)

Neochlamisus Karren, 1972: 932 ; Type species: Neochlamisus velutinus Karren, 1972 , by original designation.

Diagnosis. Length 2.90-4.70 mm, width 2.10-3.68 mm. General body shape cylindrical. Body usually metallic in color. Frons in canthus of eye usually with yellow spots, or if without yellow spots, then elytron with two velvety spots. Frons glabrous. Pronotum and elytra glabrous. Antenna serrate beyond 3 rd or 4 th antennomeres, 2 nd antennomere slightly widened, globose, 5 th antennomere smaller than 6 th. Pronotum medially elevated, with various bumps. Pronotal base opposite mesoscutellum (posterior pronotal lobe) with well differentiated notch. Prosternum posteriorly narrow or explanate with lateral serration. Anterior margin of metasternum concave. Mesoscutellum short, transverse. Metascutellum exposed or concealed. Sutural serration of elytra usually incomplete (suture entire immediately beyond mesoscutellum, followed by well developed serration). Elytral tubercules well developed. Tibiae slightly curved, slightly flattened, with sharp dorsal edge. Fore- and midtibial apices with spine. Tarsal claw bifid or appendiculate. Male ejaculatory guide (part of internal sac of aedeagus) asymmetrical, with sheath. Apex of spermathecal duct globosely swollen, wider than rest of pump.

Distribution. North, Central, and South America ( Karren 1972).

Remarks. Neochlamisus was proposed to include a few species, formerly placed in Chlamisus and Diplacaspis , based on their similarity in the male and female genitalia ( Karren 1972). Degree of exposure of the metascutellum varies greatly, from broadly exposed to completely concealed by elytra. Neochlamisus can be separated from other chlamisine genera by characters of the male genitalia. The male ejaculatory guide is asymmetrical, with a sheath. Among external characters, color of the frons in combination with the presence of velvety spots usually allows for recognition of Neochlamisus (frons on canthus of eye usually with yellow spots, or if without yellow spots, then elytron with two velvety spots).

Material examined.

Neochamisus cribripennis (LeConte) : 1) a. [ USA] Midvale N.J. A. Nicolay, 20.VIII.42/ b. Ernest Shoemaker Col- lection. 2) a. [ Canada] Constance Bay, Ont., 22.V.42, W.J. Brown/ b. on Vac- cinium/ c. Neochamisus cribripennis (LeConte) det. Karren 1968 .

Neochlamisus insularis (Schaeffer) : 1) a. [ USA] Paradise Key, Fla. 25.II.19, EA Schwarz/ b. Neochlamisus insularis (Schaeffer) det. Karren.

Neochlamisus tuberculatus (Klug) :

1) a. [ USA] Capron Fla. 8.4/ b. ex coll. Knabe/ c. 409/ d. Neochlamisus tuberculatus (Klug) det Karren 1971.

Neochlamisus velutinus Karren :

1) a. [ USA] 8 mi San Vicente, Ariz. (Pima) 3000’ Aug.8.1954, F. G. Werner/ b. F. Monrós Collection, 1959/ c. Paratype Neochlamisus velutinus m. Jay B. Karren.

Figures

Figure 1. Chlamisini, dorsal view. A, Aulacochlamys distincta (Achard). B, A. costicollis (Lacordaire. C, Carcinobaena pilula (Klug). D, Chlamisus foveolatus (Knoch). E, Diplacaspis prosternalis (Schaeffer). F, Exema elliptica Karren. G, Fulcidax coelestina (Lacordaire). H, Hymetes javana Lacordaire. I, Melittochlamys specula (Klug). Į, Neochlamisus insularis (Schaeffer). K, N. velutinus Karren. L, Pseudochlamys megalostomoides Lacordaire ♀.

Figure 2. Chlamisini, lateral view. A, Aulacochlamys distincta (Achard). B, A. costicollis (Lacordaire). C, Chlamisus foveolatus (Knoch). D, Diplacaspis prosternalis (Schaeffer). E, Exema elliptica Karren.F, Fulcidax coelestina (Lacordaire). G, Hymetes javana Lacordaire. H, Melittochlamys specula (Klug). I, Neochlamisus insularis (Schaeffer). Į, N. velutinus Karren. K, Pseudochlamys megalostomoides Lacordaire ♁. L, P. megalostomoides ♀.

Figure 3. Chlamisini, ventral view. A, Aulacochlamys costicollis (Lacordaire). B, Carcinobaena pilula (Klug). C, Chlamisus foveolatus (Knoch). D, Diplacaspis prosternalis (Schaeffer). E, Exema elliptica Karren. F, Fulcidax coelestina (Lacordaire). G, Hymetes javana Lacordaire. H, Melittochlamys specula (Klug). I, Neochlamisus insularis (Schaeffer). Į, N. velutinus Karren. K, Pseudochlamys megalostomoides Lacordaire ♁. L, P. megalostomoides ♀.

Figure 4. Chlamisini, frontal view. A, Aulacochlamys costicollis (Lacordaire). B, Carcinobaena pilula (Klug). C, Chlamisus foveolatus (Knoch). D, Diplacaspis prosternalis (Schaeffer). E, Exema elliptica Karren. F, Fulcidax coelestina (Lacordaire). G, Hymetes javana Lacordaire. H, Melittochlamys specula (Klug). I, Neochlamisus insularis (Schaeffer). J, N. velutinus Karren. K, Pseudochlamys megalostomoides Lacordaire ♁. L, P. megalostomoides ♀.

Figure 5. Chlamisini, caudal view. A, Aulacochlamys costicollis (Lacordaire). B, Carcinobaena pilula (Klug). C, Chlamisus foveolatus (Knoch). D, Diplacaspis prosternalis (Schaeffer). E, Exema elliptica Karren. F, Fulcidax coelestina (Lacordaire). G, Hymetes javana Lacordaire. H, Melittochlamys specula (Klug). I, Neochlamisus insularis (Schaeffer). Į, N. velutinus Karren. K, Pseudochlamys megalostomoides Lacordaire ♀.

Figure 7. Genitalia of Chlamisini. A, Male ejaculatory guide of Neochlamisus velutinus Karren, dorsal and lateral views. B, Male ejaculatory guide of Chlamisus maculipes (Chevrolat), dorsal and lateral views. C, Spermatheca of Neochlamisus velutinus. D, Spermatheca of Chlamisus maculipes.