Two new flea beetle genera: Alasia alpina gen. et sp. nov. from a Costa Rican cloud forest and Pseudostenophyma gen. nov. from Brazil (Coleoptera: Chrysomelidae: Alticinae) Author Furth, David G. Author Zhaurova, Kira M. text Zootaxa 2010 2679 32 50 journal article 10.5281/zenodo.199276 f2a17677-7481-46ee-aeb4-3c0b63b4c09e 1175-5326 199276 Pseudostenophyma Furth , new genus Type species. Stenophyma modesta Weise, 1921 , 137: Male: Brasil : “Rio Purus”. “Amazon, Roman”, “Hyutanahã, 2/215. Hõglãnd“ [hand-written]. Stenophyma modesta m. [hand-written] (Swedish Museum of Natural History) – Herein designated as the Lectotype . Male: Brasil : “Rio Autaz”, “Amazon, Roman” (Swedish Museum of Natural History) – Herein designated as the Paralectotype . These Lectotype and Paralectotype designations are being made because no primary type was mentioned in the original description by Weise (1921) , thus they are syntypes . Therefore, the designation of a primary type specimen establishes a single specimen as the unique bearer of this name and the standard for its application in the future, thus avoiding any confusion. FIGURE 6. Alasia alpina feeding on: a) Gunnera insignis (Oerst.) A. DC. ( Gunneraceae ); b) Gunnera insignis (Oerst.) A. DC. ( Gunneraceae ); c) Macrocarpaea sp. ( Gentianaceae ). Photos: K. Nishida. Description. Body shape elongate, narrow. Dorsum with coarse, dense punctation. Body length: 2.7– 3.05mm . Head: ( Figs. 7 a–c; 11a–b): Broadly connected to pronotum at base (posteriorly); vertex with coarse, dense punctation; frons narrow, smooth, narrowing ventrally, concave in lateral view, ca. at a 90° angle to vertex in lateral view; antennal calli evident, delimited posteriorly; eyes large, round, prominent, but total eye to eye width not apparently greater than pronotal anterior width; IOD narrow; antennae almost as long or longer than body, antennal segments 2 and 3 shortest, 4 distinctly longest; labrum bearing four fine setiferous punctures on dorsal surface, two on each side. Pronotum: Quadrate/rectangular, not distinctly narrowed basally (posteriorly); laterally straight-sided, parallel; anterolateral callosities distinctly angled; punctation coarse, dense; pre-basal transverse impression deep, laterally delimited by apparent short, longitudinal, sublateral carinae. Elytra: Parallel-sided; base somewhat wider than base of pronotum; humeri prominent; elytral bossae distinct; punctation coarse, strongly striate throughout; epipleurae parallel-sided, equal width tapered subapically laterad of elytral apex. Two basolateral patches of microspines on underside of each elytron ( Fig. 11 c). Ve n te r: Procoxal cavities open ( Fig. 8 c). Legs: Metafemora distinctly swollen, much more so than pro- or mesofemora; metafemoral spring ( Fig. 10 c) with dorsal lobe rather strongly arched dorsally at base with extended arm strongly depressed at apex, extended arm about 17% of total spring length, basal angle of ventral lobe obtuse, dorsal edge of ventral lobe descending sharply towards apex, recurve flange evident, most similar in shape to the Phyllotreta spring Morpho-group ( Furth & Suzuki 1998 ), but differs significantly from Alasia (above); tibiae with evident apical spines; metatibial apex not unusually expanded or laterally compressed, dorsal margins with only a short distance with stout spines (subequal to length of tarsomere 2); metatarsus with first tarsomere distinctly longer than in pro or mesotarsi, first metatarsomere relatively long, almost as long as tarsomeres 2–5 combined; first foretarsal segment not swollen in males; claws appendiculate. Remarks. Pseudostenophyma is similar to Alasia in general body shape, antennal length, lateral view of frons, but differs in IOD; narrow gena laterally below eye; pronotal shape, pronotal anterolateral angles; distinctly striate elytral punctation throughout; male and female genitalia, and metafemoral spring form (see also Remarks for Alasia alpina above). It is also clearly very different from Stenophyma elegans ( Fig. 12 a–c) [see Remarks section for S. elegans ].