Stator huautlae Romero and Johnson

Romero, Jesús & Johnson, Clarence Dan, 2004, Stator Huautlae, a New Species From Mexico Feeding in Fruits of Sage (Lamiaceae), a New Host Family From the New World for Bruchidae (Coleoptera), The Coleopterists Bulletin 58 (2), pp. 253-260 : 254-257

Stator huautlae Romero and Johnson , new species

Description. Male.

Integument Color. Body black ( Fig. 1 ) except basal four antennal segments, and mentum and prementum usually red orange to light brown.

Vestiture. Eye usually with medial fringe of sparse, white hairs; postocular lobe with short white hairs ( Fig. 2 ); usually without postocular patch of white hairs, remainder of head with sparse white hairs; scutellum covered with dense white hairs, basal corners of pronotum with dense white hairs, remainder of pronotum, elytra, and legs with uniform, moderately dense white hairs; mesepisternum, metepisternum, apical portions of the first three and the last abdominal segments with dense white hairs, remainder of mesothorax, metathorax, and abdomen with moderately dense white hairs; pygidium with sparse white hairs, base usually with three small white patches of hair, one medial and two lateral ( Fig. 1 ).

Structure.

Head. Short and broad, densely punctulate; frons with a weak median glabrous carina extending from frontoclypeal suture to vertex; with vague transverse sulcus between upper limits of eyes; posterior margin of eye protruding laterally, well separated from vertex; width of eye 1.2–1.5 times width of frons; ocular sinus 0.5–0.6 as long as width of eye; distance from base of antennae to apex of labrum about 0.42–0.54 as long as distance from upper limits of eyes to apex of labrum; antennal segments 1, 3, and 4 usually filiform, 2 moniliform, 5–10 eccentric, 11 subacute apically, 5–11 slightly broader than long; antenna reaching to humerus or slightly longer, 0.50–0.62 as long as length of elytra.

Prothorax. Disk campanulate ( Fig. 1 ); finely punctate; lateral prothoracic carina not reaching coxal cavity; short median impressed line on median basal lobe; prosternum separating procoxae for about 0.66–0.73 their length.

Mesothorax and Metathorax. Scutellum small, quadrate, with lateral posterior small teeth ( Fig. 1 ); elytron about twice as long as broad, dorsal surface flattened between humerus and medial margin; striae deep, punctate, strial intervals punctulate finely; striae 3, 4, 5 and 6 equidistant at base; striae 5 and 6 not abbreviated at base, humerus impunctate, usually glabrous; undersurfaces punctate; entire face of hind coxa finely, shallowly foveolate; hind femur constricted basally and apically, expanded medially to slightly less than width of coxa; without scattered spinules on inner ventral longitudinal carina; femur armed with inner subapical acuminate spine 0.5–0.6 as long as width of tibial base; lateral ventral carina sinuately emarginate apically, with blunt angulation; tibia robust, with weak lateroventral, lateral, and dorsomesal carinae, ventral carina absent; dorsal surface of tibia somewhat roughened, with fossa indistinct; dorsal carina indistinct; tibial corona with three to four spinules, mucro 0.11–0.20 as long as first tarsomere; without sinus at base of mucro; first tarsomere with indistinct ventral, lateral, and mesal carinae.

Abdomen. First sternum slightly flattened medially, about 1.10–1.35 times longer than remaining sterna, posterior margin straight; sterna 2–4 unmodified, fifth emarginate; pygidium punctate, convex in lateral view.

Measurements. Length (pronotum-elytra) 1.37–1.87 mm. Width 0.87–1.2 mm. Maximum thoracic depth 0.67–1.0 mm.

Genitalia. Median lobe moderate in length; in ventral view, ventral valve slightly sinuate on lateral margins, arcuate in lateral view, gonopore trumpet shaped; without hinge sclerites; armature of internal sac consisting of one large medial forked spine, cleft of fork about 0.5 in length of spine, apex of sac with a cluster of small denticles, apical 0.30 of sac covered with many fine denticles, and the other 0.55 with small spines ( Fig. 3 ). Lateral lobes slightly expanded apically, cleft to about 0.86 their length ( Fig. 4 ).

Female.

Similar to male but apical margin of last visible abdominal sternum straight.

Length (pronotum-elytra) 1.62–1.92 mm. Width 1.05–1.22 mm. Maximum thoracic depth 0.87– 1.0 mm.

Host Plants. Salvia sessei Bentham : Estación de Microondas El Salto, Tilzapotla, Reserva de la Biosfera Sierra de Huautla, Morelos, 2/II/2000, J. Romero Nápoles, 1,650 msnm, 188279540N and 998169370W. S. sessei: Same locality data but 30/XI/ 2001, J. Romero Nápoles, 1,650 msnm, 188279540N and 998169370W.

Types. Holotype #, allotype $, and paratypes #$: Estación de Microondas El Salto, Tilzapotla, Reserva de la Biosfera Sierra de Huautla , Morelos, 2/II/2000, J. Romero Nápoles, 1,650 msnm, 188279540N and 998169370W, reared seed JRN #252/2000 of Salvia sessei Benth . Paratypes #$: same locality data but 30/XI/2001, reared seed JRN #257/2000 of Salvia sessei Benth .

Holotype, allotype, and paratypes deposited in Colección Entomológica del Instituto de Fitosanidad , Colegio de Postgraduados, Mexico . Paratypes also deposited in the following collections: U.S. National Museum of Natural History , Washington, D.C.; C. D. Johnson collection, Northern Arizona University, Flagstaff, Arizona, USA ; Colección Entomológica del Instituto de Ecología A. C. Xalapa, Mexico ; Colección Nacional de Insectos , UNAM, Mexico , Colección Nacional de Insectos , INIFAP, Mexico .

Etymology. The specific epithet huautlae refers to the name of the locality, Huautla, Morelos, in which Stator huautlae was collected.

Figures

Fig. 1. Dorsal aspect of Stator huautlae.

Fig. 2. Lateral aspect of Stator huautlae.

Figs. 3–4. Stator huautlae male genitalia. 3) Median lobe, ventral view; 4) lateral lobes, basal piece and tegminal strut, ventral view.