Ripiphorus neomexicanus Rivnay 1929

Rhipiphorus neomexicanus new species
Rh. neomexicanus is closely allied to Rh. scaber and Rh. solidaginis. The male of neomexicanus may be distinguished from solidaginis in having the smooth areas on the tergites larger and more distinct, and the seventh tergite larger and opaque. The female of this species may be distinguished in having all tergites, except first two, without brown median spots. In addition, the segments of the hind tarsus differ as is shown in Plate IV, figs. 10, ii and 12.
Male entirely black, legs, antennae and elytra yellow, tips of femora and tibia with a brownish tinge, tips of rami slightly fuscous. Vertex elevated and acute, frons flat and punctate with a small excavation between the bases of antennae, clypeus broadly truncate. Pronotum rounded at base, depressed on both sides to produce a median carina near base, entire surface is regularly punctate, with two small glabrous areas on each side of the carina. The distance between the two posterior areas is about half the distance of the two anterior areas. Elytra very finely and sparsely punctate. The second tergite and the anterior portion of third tergite glabrous, other tergites pubescent with two distinct smooth areas on the sides. The seventh tergite as broad as the two preceding together, and the smooth areas very distinct and larger than those in the other tergites. First segment of hind tarsus as long as third and fourth together, obliquely truncate and emarginate at tip.
Female head and thorax black or brownish-black. Abdomen reddish-yellow, femora brown, tibia and tarsi yellowish-brown; pygidium in greatest part brown with a yellowish tinge in the center. Elytra yellowish hyaline; wings with a smoky band in the middle. Vertex less elevated than in male, more rounded and with distinct occipital suture.
Length, 7 to 8.5 mm.
Holotype.—Msde; Albuquerque, (River plain), New Mexico, August, 1 92 1 (Rehn and Hebard). [Academy of Natural Sciences of Philadelphia, No. 8135].
Allotype. — Female; same data as type. [Academy of Natural Sciences of Philadelphia.]
Distribution. — Besides the type and allotype there is a female (paratype) in Leng's Collection also from Albuquerque.