Descriptions of the Larvae of Chlorota cincticollis Blanchard and Chasmodia collaris (Blanchard) (Scarabaeidae: Rutelinae: Rutelini) with a Key to the Larvae of the American Genera of Rutelini

Larvae of the genera Chlorota Burmeister and Chasmodia Macleay (Scarabaeidae: Rutelinae: Rutelini) are described for the first time based on the larvae of Chlorota cincticollis Blanchard and Chasmodia collaris (Blanchard). The pupa of C. cincticollis is also described. A key to the larvae of 19 American genera of Rutelini and a list of the described species are provided. Se describen por primera vez las larvas de 10s gbneros Chlorota Burmeister y Chasmodia Macleay (Scarabaeidae: Rutelinae: Rutelini) con base en las larvas de Chlorota cincticollis Blanchard y Chasmodia collaris (Blanchard). Tambibn se describe la pupa de C. cincticollis, se presenta una clave para identificar las larvas de 19 gbneros americanos de Rutelini y una lista de las especies cuyas larvas han sido descritas. In the New World, there are approximately 75 genera and 650 species of scarab beetles in the tribe Rutelini (Scarabaeidae: Rutelinae [sensu Ohaus 19341 or Melolonthidae: Rutelinae [sensu Machatschke 1972]), a group that includes leaf-feeding beetles such as Plusiotis Burmeister, Pelidnota Macleay, and Cotalpa Burmeister. Larvae of 17 genera in the tribe Rutelini have been described previously, and we supplement the knowledge of Rutelini larvae by describing two species from previously undescribed genera, Chlorota Burmeister and Chasmodia Macleay (Table l). Pupae of American Rutelini are less well known than are the larvae. Six genera and seven species have been described (Table I), and we describe the pupa of C. cincticollis Blanchard in this work. We further the knowledge of American Rutelini larvae by providing a key to the 19 known genera. Larvae of the American genera of Rutelini are characterized as follows (after Jameson et al. 1994; Jameson 1996, 1999; MonnB 1969; Mor6n 1976a, b, 1983; Mor6n and Deloya 1991; Mor6n and Noguiera in press; Ritcher 1966; Vanin and Costa 1980): stipes of the maxilla with a dorsal row of 5-14 sharp, conical, or recurved stridulatory teeth and with an anterior process; lacinia with 1-2 unci (reduced or vestigial); epipharynx with haptomerum mound-like Table 1. Described Larvae and Pupae of New World Rutelini (Scarabaeidae: Rutelinae)