Morfologia externa dos cicadellinae (homoptera, cicadellidae): comparação entre versigonalia ruficauda (walker) (cicadellini) e tretogonia cribrata melichar (proconiini), com notas sobre outras espécies e análise da terminologia

Abstract

(Jacobi, 1905), lch/hyobe/us sp., and Rhaphirrhilllls phosphoreus (Linnaeus, 1758) -are added. A tec hnique for dissecting the female genita lia is presented. The facia l portion of head in V rujieallda, T cribra/a, and remaining species has a large sclerite (frons or postfrontoüons) c\early defined by the frontogenal suture. Belowthe frons , and separated from it by theepistoma l suture, a smaller sclerite is present (clypeus). The identitication ofthese sclerites is based on compar isons with descriptions in the literature ofa general ized Pterygota, a Psocoptera, a fossil Hemipleroidea, and other Homoplera. The conc lusions about lhe identities 01' frons and c1ypeus corroborate the hypotheses ofHAMILTON (1981) on the homologies of cephalic are as in Rhynchota. The tàcial sc\erites have modifications re lated with lhe xy lemomyzous diet. The frons is swollen, providing a larger area for attachmenl ofcibarial muscles. Other modifications increasing the area 01' frons are observed in lhe Proconiini. ln C. adsperslIs its lateralmargins are distinctly pronounced and its upper p0l1ion has a pair of lateral elevations. ln /ch/hyobe/us sp. and R. phosphorells the upper par! offrons is greatly developed, occupying 4/5 of dorsa l area ofhead on middle line. The vertex is lil11ited to a small portion (1 /5) of that area . The c1ypeus is also swollen, a fàcl related Wilh lhe greater development 01' cibarium. Th is character is more conspicuous in the Proconiini . ln this tribe the c\ypeus has a convex projection occupied by lhe cibarium, which is greatly developed. The pronotum and forewings in T cribrala are covered by pits, each with a seta on external margino These pits are sim il ar (and maybe homologous) to structures in the abdomen 01' a membracid (Goni%lllus /rieorniger Stal. 1869). The pronotum is smooth in V rl{/icallda. However. pits similar to those ofT cribrala, although smaller, OCCUr near the fo rewing veins. A strong costal vein is present in the torewings of the 10 studied species. This vein is formed by a fusion between precosla (PC), costa anterior (CA), and costa posterior (CP). Vestiges

Description of the Aguatala compsa young (Hemiptera: Cicadellidae: Cicadellinae) female

“…Aguatala compsa was previously known only from Ve nezuela, although it is ung (1977) considered the latter country record as uncertain. The female genitalia have yielded useful characters for the taxonomy of sharpshooters, as demonstrated by several authors (e.g., Nielson 1965, Yo ung 1977, Mejdalani 1995, 1998, Takiya & Mejdalani 2004. However, the morphological diversity found in the female genitalia is still poorly known when compared to our current knowledge of the male genitalia.…”

“…In this group, he placed Aguatala near Erythrogonia Melichar, Inuyana Yo ung, and Tettisama Yo ung. Among the latter three genera, the female genitalia of Tettisama [based on T. quinquemaculata (Germar)] were described in detail by Mejdalani (1998). Hence, we concentrate our discussion in the comparison between Aguatala and Tettisama, with the goal of pointing out potentially useful taxonomic features in the female genitalia.…”

“…Label data are given inside quotations with a reversed virgule (\) separating lines. Morphological terminology follows mainly Yo ung (1977), except for the head (Mejdalani 1998) and for the female genitalia (Nielson 1965, Hill 1970, Davis 1975. The use of the term gonoplac (= third ovipositor valvula) follows Mejdalani (1998).…”

“…Morphological terminology follows mainly Yo ung (1977), except for the head (Mejdalani 1998) and for the female genitalia (Nielson 1965, Hill 1970, Davis 1975. The use of the term gonoplac (= third ovipositor valvula) follows Mejdalani (1998). Techniques for preparation of male and female genital structures follow, respectively, Oman (1949) and Mejdalani (1998).…”

“…The use of the term gonoplac (= third ovipositor valvula) follows Mejdalani (1998). Techniques for preparation of male and female genital structures follow, respectively, Oman (1949) and Mejdalani (1998). The dissected parts are stored in microvials with glycerin.…”