Neltumius dospatrias Romero and Johnson

Romero, Jesus & Johnson, Clarence Dan, 2003, Revision of the Genus NELTUMIUS Bridwell (Coleoptera: Bruchidae), The Coleopterists Bulletin 57 (2), pp. 219-236 : 231-233

Neltumius dospatrias Romero and Johnson , new species

Description. Male. Integument Color. Antennae, head, thorax, abdomen, and tarsi black; femora and tibiae brown with apices black.

Vestiture. Antennae black with white pubescence; frons covered with sparse to moderately dense intermixed white and brown hairs, vertex with sparse reddish brown hairs; prothorax with recumbent reddish-brown hairs interrupted by 4–6 patches of white hairs, antescutellar area covered with dense white hairs forming a small triangle; scutellum covered with sparse white pubescence; elytral pubescence white, reddish brown, and black hairs in contrasting pattern ( Fig. 15); sides and venter with dense white and reddish brown hairs in mottled pattern; legs clothed with sparse white hairs with median brown band on posterolateral face of each tibia; without tuft of hair on first abdominal sternum; pygidium evenly convex, small, medial, triangular patch of white hairs at base, sometimes apex with thin line of white hairs extending to 0.5 length of pygidium, remainder of pygidium with reddish-brown hairs, sometimes with small, intermixed patches of white hairs.

Head. Antenna with segments 1–4 and 11 filiform, segments 5–10 subserrate, 11 acute at apex; frons with strong median glabrous carina extending from frontoclypeal suture to vertex, head with many deep punctations; labrum finely punctate, not sulcate, yellowish brown at apex; eyes rounded, dark brown; ocular sinus 0.6 to 0.62 width of eye.

Prothorax. Subconical, pleura slightly concave; disk convex with paired brown, obsolete tuberosities near base flanking triangular white antescutellar patch; base strongly lobed at middle, sinuate laterally, posterior corners acute; apex rounded.

Mesothorax and Metathorax. Scutellum very small, subquadrate; elytron evenly convex; humerus prominent, granulate, dark brown to black, lacking serrate carina connecting bases of striae 6 and 7; striae narrow, deep with setiferous punctures hardly discernible. Metepisternum microfoveolate with some scattered foveolae unisetose. Hind coxa microfoveolate, setose, short area near trochanteral insertion with setose foveolae, small elongate lustrous area on anterior portion. Hind femur constricted basally and apically, expanded medially to about width of coxa, with very shallowly sulcate ventral margin, with one small, sharp spine on inner margin of sulcus one-fourth from apex of femur ( Fig. 2 ); tibia with dorsomesal, lateral and ventral carinae, inner face convex; apex with about five spinules, outer lateral and inner ventral spinules usually subequal, others shorter; claws lobed at base.

Abdomen. First abdominal sternum three times as long as second; 2–4 subequal; fifth slightly longer, slightly emarginate apically; sterna without lines of strong, black setae. Pygidium ovate and convex.

Size. Length (pronotum-elytra) 1.5 to 2.3 mm. Width 0.8 to 1.3 mm. Maximum thoracic depth 0.7 to 1.2 mm.

Genitalia. Median lobe elongate; in ventral view, ventral valve broader than apex of median lobe, sides slightly concave, apex broadly blunt; dorsal valve membranous, gently rounded at apex; armature of internal sac with narrow, medial chain of spines near apex, chain attached to a broad, elongate cluster of small spines occupying medial portion of internal sac, interrupted near base by group of finely dentate scales attached to large cluster of minute spines at base ( Fig. 17 ). Lateral lobes expanded at apex with many short setae, lateroventral surface of apices strongly sclerotized on periphery, without stout spines, lobes cleft to 0.8 their length ( Fig. 18 ).

Female. Similar to male except fifth sternum not emarginate.

Size. Length (pronotum-elytra) 1.9 to 2.2 mm. Width 1.1 to 1.2 mm. Maximum thoracic depth 1.0 to 1.2 mm.

Host Plants. Unknown.

Type Series. Male holotype, female allotype, and eight paratypes: Mexico. Nuevo Leon: 79 mi. S. Linares, Hwy. 57, VI-23 1971, 6,7009, C. O’Brien and Marshall. Fourteen paratypes: Mexico. Queretaro; 8 km de la carr. a San Joaquín, San Joaquín , 18/V/2001 ; 208549220N, 998409100W; Col. J. L. Cozar; sobre flores de Condalia mexicana Schltdl. One paratype: USA. Arizona: Pima Co., Tucson, 28 mi. N. VI-17- 63, J. Doyen, Collector .

Holotype, allotype, and six paratypes deposited in the USNMNH. One paratype deposited in the C. D. Johnson Collection. Other paratypes deposited in the following collections in Mexico: J. Romero Collection; Coleccion Entomologica de la Universidad Autonoma de Queretaro, Queretaro ; Coleccion de la Universidad Nacional Autonoma de Mexico; Coleccion Entomologica del Instituto de Ecología A. C., Xalapa, Veracruz ; Coleccion Nacional de Insectos, Instituto Nacional de Investigaciones Forestales y Agropecuarias, Campo Experimental El Bajio, Celaya, Guanajuato .

Figures

Figs. 1–2. Neltumius spp. 1) Antenna; 2) hind femur, medial view.

Figs. 17–18. Neltumius dospatrias, male genitalia. 17) Median lobe, ventral view; 18) lateral lobes, ventral view.