Aneflomorpha yumae Giesbert and Hovore, new status

(Fig. 3f, 6x, 7x, 8v, 9u, 10x, 11j, 16h)

Aneflomorpha rectilinea yumae Giesbert and Hovore 1976: 97 .

Diagnosis. Length 10–16 mm, pronotum averages 1.11 times longer than wide, elytra together average 3.80 times longer than wide (Fig. 3f). Integument testaceous to light rufous. Antennae carinate (Fig. 9u). Spine of third antennomere distinctly longer than second antennomere, projecting away from antennal plane by nearly 40 degrees, acute at apex (Fig. 9u). Pronotum with dense punctures and uneven sculpturing, partially to mostly obscured by recumbent, white setae; without impunctate, post-median callus (Fig. 6x). Elytral apices bispinose or strongly bidentate (Fig. 8v). Elytral pubescence white to off-white, setae somewhat thickened at middle, mostly recumbent and flattened, only slightly recurved, with a few scattered long erect to suberect setae (Fig. 7x). Procoxal cavities narrowly to moderately open by a little less than the apical width of the moderately expanded prosternal process (Fig. 10x). Protibiae flattened and usually carinate dorsally (Fig. 11j).

Discussion. This species is distinctive by its testaceous integument and relatively dense, thick, white, closely recumbent setae over much of the dorsal and ventral surface, and particularly dense on the scutellum, inner eye margins, metasternum, and basal sternites (Fig. 3f, 16h) and flattened, usually dorsally carinate, protibiae (Fig. 11j). It superficially resembles very light-colored individuals of A. linearis and A. rectilinea based on size and proportions and shares with those species carinate antennae and a strong spine of antennomere three. The more widely open procoxal cavities (Fig. 10x) and laterally flattened protibiae with a dorsal carina (Fig. 11j) immediately distinguish A. yumae from A. rectilinea and this is the basis for elevating it from a subspecies of A. rectilinea to full species. The denser pubescence as described above also distinguishes A. yumae from A. linearis which has finer pubescence and specifically lacks the dense pubescence on the inner eye margins and, sometimes, scutellum (Fig. 1i). The dense punctures of the pronotum are mostly hidden in A. yumae (Fig. 6x) and the pronotum usually lacks a postmedial callus unlike A. linearis which has the pronotal punctures mostly exposed and usually has a posteromedian impunctate callus (Fig. 5i).

Distribution and Biology. This species is known only from a population in Yuma, Arizona in a desert riparian corridor along the Colorado River. Adults and larvae have been collected and reared from Salix (Giesbert and Hovore 1976) .

Material examined. USA: Arizona: Yuma Co., Morelos Dam, 22 June 1971, E. F. Giesbert (FSCA, 6 paratypes) ; Same data but 10 June 1972 (FSCA, 4 paratypes) ; same data but 4 July 1975 (FSCA) .

Identification Key to Neaneflus Linsley and Aneflomorpha Casey

As the concepts of the genera Neaneflus and Aneflomorpha have been modified herein, this key will aid in distinguishing them.

1. Antennomeres 6–9 expanded apicolaterally (twice as wide at apex as base). Pronotum as wide or wider than long (Fig. 18a, c, d). Antennae with pronounced sexual dimorphism (as long as body or longer in male, not attaining fourth ventrite in females); antennomeres with vestiture of very short setae (long suberect or recumbent setae very sparse and restricted to venter or apex of some antennomeres) (Fig. 17–18).................................................... Neaneflus Linsley

— Antennomeres not or weakly expanded apicolaterally (6–9 much less than twice as wide at apex than at base). Pronotum longer than wide (Fig. 5). Antennae with weak sexual dimorphism (extending beyond elytral apex in males by less than 3 antennomeres, usually not or barely attaining elytral apex in females). Antennomeres (at least basal segments 3–4) with relatively long suberect and recumbent setae throughout (Fig. 1–3; 9a–k, m–u).......................... Aneflomorpha Casey