14 REVISTA PERUANA DE ENTOMOLOGÍA Vol. 16, N? 1

ADDITIONAL NOTES ON THE CICADELLIDAE FAUNA OF PERÚ 1

R. Linnavuori2

In a material of collected from the lea Valley in Perú and sent for identification by Prof. Luis Va­ lencia Valencia, of lea, one new and four new species were detected. These are described below. In addition one species, stactogalus Fb., is recorded as new for South America.

1. BERGALLIA CASTELLANA n.s.p. (AGALLIINAE)

Length 3.25-3.5 mm. Opaque. Whitish ochraceous, with only faint dark pattern. Frontoclypeus slightly embrowned, with short dark lateral ares in lower part, otherwise órnate with a faint brownish midline and a faint arcuate transverse brownish figure on either side in upper part; this pattern more distinct in male, greatly reduced in female. Crown with a faintly developed pattern: discal spots roundedly squarish and brownish, a small darker spot near either eye, apex with two triangular darker brown spots; also this pattern greatly reduced ¡n female. Pronotum slightly embrowned, with 6 irregular longitudinal palé lines and a transverse row of small dark spots in apical part. Scutellum with faint brownish markings. Elytra palé, clavus slightly embrowned; veins in male more distinctly, in female faintly infúscate, ¡n FIG. 1. Bergallia castellana n.sp.: a side iobe of pygophore; b anal hook; clavus and base of corium with palé patches; veins in fe­ c ape of stylus; d penis, lateral aspect; e same, ventral aspect; f 7th male sometimes nearly totally palé. Thorax laterally darken- sternite (hembra). ed in male. Under surface of female with only scanty dark markings. Legs palé. 2. Fb. (DELTOCEPHALINAE) Body robust. Crown slightly produced apicad, a little longer medially than near eyes. Pronotum densely and fi- Material studied: Paraya, lea, 4 exx., 17.1.1971, Uribe. nely transversely striated. Elytra with 3 closed subapical On Casuarina. cells and a few extra cross veins in apical and subapical The first record from South America. A Mediterranean área. Male genitalia in Fig. 1 a-e. Anal hook long, fálcate. species, imported together with the host plant, Tamarix, Penis short, stem provided with triangular lateral lamellae. ¡nto North and Central America. 7th sternite of female in Fig. 1f. Material studied: Perú, lea, Hda. Castellana, 1 male, holo- type and 1 female, paratype, 17.11.1971, Lainez, in my collec- 3. TUBULANUS JOAQUINUS n.sp. (DELTOCEPHALINAE) tion; same locality, 1 female, paratype, 31.1.1971, M. Uribe, in Dept. of Agriculture, lea. On Erigeron sp. Length 4 mm. Shiny. Yellow-ochraceous, with only faint Easily recognized in the palé colouring, the fine striation dark pattern. Face uniformly yellowish. Crown with a faint of the pronotum, the extra cross veins of the elytra and pattern of the common shape: anterior margin with a trans­ the male genitalia. verse band, broken at middle, disk with a roughly M-shaped darker figure. Pronotum with faint brownish irroration. Scutellum with orangish basal triangles and a slightly darkened median figure. Elytra hyaline, with a slight yel­ 1 Recibido para publicación: Noviembre 1972. lowish tinge; clavus with 3 milky spots in commissural margin; cells of apical and subapical área of corium with 2 Raisio, Finland Diciembre, 1973 LINNAVOURI: NOTES ON PERUVIAN CICADELLIDAE 15

embrowned. Anterior margin of crown with a faint brown­ ish band between ocelli. Ocelli surrounded by a dark ring. Eyes brown. Pronotum with traces of 6 brownish longi­ tudinal bands. Scutelum with faint brownish basal triangles. Elytra brownish hyaline, cells, especially in apical area, with faint infuscation along veins; veins slightly paler than the ground colouring. Dorsum of abdomen largely embrown­ ed. Under surface and legs pale.

Small. Crown relatively short and broad, medially 1.4 x as long as laterally, 0.78 x as long as pronotum, 2.05 x as broad as long, anterior margin bluntly rounded. Prono­ tum nearly twice as broad as long. 7th sternite (female) as in Fig. 3 b, median love embrowned.

Mateiral studied: Peru, lea, Hda. Huamani, 1 female, holotype, in my collection, 9.10.1970, Uribe. On Sorghum ha- lepense.

Of the group of species with dilute brown pattern. Dif­ fering from its relatives [C. nimbuliferus (Berg) etc.] espe­ cially in the shape of the 7th sternite.

FIG. 2. Tubulanus joaquinus n.sp.: a pygophore from side; b stylus; c 5. ICAIA n.gen. (DELTOCEPHALINAE) connective; d penis from side; e same, ventral aspect. Small brachypterous leafhoppers. Colouring ochraceous, with fuscous markings. smoky shadows, veins yellowish. Dorsum of abdomen dar­ kened. Under surface and legs pale. Hind tibiae with small Head as broad as pronotum, bluntly angularly produced dark dots. apicad. Face flattish, lower part bluntly rounded in outline; anteclypeus parallel-sided; frontoclypeus flat, rather narrow, Body of the common type within the genus. Male ge­ broadening upwardly, shagreened, slightly depressed me­ nitalia in Fig. 2 a-e. Side lobes of pygophore with a falcate dially in upper margin; genae broad, only shallowly notched process in ventral margin. Stem of penis short, provided near eyes; lorae small, not extending to lateral margin of with two pairs of small teeth. 7th sternite (female] in Fig. 3a. genae; ocellocular area moderately broad. Anterior margin of head subacute, shiny, not shagreened. Crown distinctly longer medially than laterally, flat; the longitudinally rugose Material studied: Peru, Ica, San Joaquin, 1 male, holo- frontal region well separated, shallowly concave behind an­ type, on Waltheria ovata, 5.1.1971, L. Valencia, in my collec­ terior margin; also the finely striated discal region slightly tion; Ica, Hda. Los Pobres, 1 female, paratype, on Waltheria concave on either side of coronel suture basally; ocelli in ovata, 20.XII.1970, L. Valencia, in Dept. of Agriculture, lea. anterior margin near eyes. Pronotum short and broad, la­ teral margins rather short, disk transversely wrinkled, an­ Easily recognized in the male genitalia. terior margin finely shagreened. Scuttelum shagreened, with a distinct transverse furrow. Elytra (Fig. 3 d) extend­ ing to 8th tergite, nearly rectangular, slightly coriaceous, 4. CHLOROTETTIX VALENCIAI n.sp. venation reduced in apical part. Flying wings reduced, scale like. Spinulation of fore tibiae 1+3, of hind knees 2+2+1. Length 5 mm. Ochraceous, with a distinct green tinge in scutellum and under surface. Frontoclypeus slightly Male genitalia: Pygophore sclerified, broadly conical; side lobes broadly triangular, vertical, without appendages, with a group of macrosetae in dorsal part. Anal tube small, sclerified, well visible. Valve large. Genital plates short, apex roundedly truncate, lateral margins shallowly insinuat­ ed, macrosetae not regularly arranged. Apophysis of stylus claw like, preapical angle sharply produced. Connective (Fig. 4 b) long and slender, arms close to each other. Penis symmetrical, stem long, digitate, arising from the ventral portion of the socle, recurved dorsad, provided with paired subapical lamellae, gonopore subapical on dorsal surface.

Female genitalia: Pygophore sharply conical, ovipositor sheath extending distinctly beyond apex of abdomen. 7th sternite longish, posterior margin subtruncate.

Type: /. gnathenion Lv.

Of the tribe Doraturini. The first record of this pri­ marily Old World tribe from South America. In North Amer­ ica two genera, besides the imported Doratura Sb., are known: Driotura Osb. & Ball, that is completely different, and Athysanella Bak. In the latter the face is more convex, the anteclypeus distinctly tapering apicad, the frontoclypeus much broader and convex, the anterior margin of the head generally more rounded to the face, the frontal and discal FIG. 3. Tubulanus joaquinus n.sp.: a 7th sternite (female).— Chlorotettix regions of the crown are indistinctly delimited, the elytra valenciai n.sp.: b, same.— leaia gnathenion n.gen. et sp.: c, head and prontum (male); d, elytron. are shorter and the spinulation of the fore tibiae is of the 16 REVISTA PERUANA DE ENTOMOLOGIA Vol. 16, N? 1

ICAIA GNATHENION n.sp.

Fig. 3 c and d. Length male 2.5 mm., female 3 mm. Gre­ yish ochraceous. Male with distinct dark pattern. Anteclypeus with a broad median fuscous band. Frontoclypeus with black lateral arcs in lower part, upper part with a longi­ tudinal dark median band ending in a shiny black spot in upper margin. Also other parts of face with slight infus- cations. Crown (Fig. 3 c) with a black apical spot, a trans­ verse band between ocelli, another band between anterior corners of eyes, a dash along eyes and a triangular basal spot on either side, brown. Eyes and ocelli brown. Pronotum with 6 irregular longitudinal brownish bands and some minor spots in anterior part. Scutellum with a brownish median figure. Elytra greyish, cells generally with dark brown in- fuscation, veins pale. Dorsum of abdomen largely darkened. Under surface mainly black, 8th sternite white, genital seg­ ment with pale patches. Fore and middle femora with two fuscous rings, hind femora with a few dark spots, tibiae with dark dots.

Female dark pattern greatly reduced. Frontoclypeus with blackish lateral arcs. Crown with two minute dark dots in anterior margin. Elytra ochraceous hyaline, only apical cells slightly embrowned. Dorsum largely pale. Thorax and base and sides of venter darkened. Male geni­ talia in Figs. 4 a-c and 5 a-b. 7th sternite (female) twice as long as 6th, hind margin subtruncate.

Material studied: Peru, Ica, Hda. Sta. Rosa, 1 male holo- FIG, 4. Icaia gnathenion n.gen. et sp.: a genital plates and stylus; b side lobe of pygophore; c penis, lateral aspect. type and 3 paratypes, 8.XII.1970, Uribe. On Sorghum hale- pense. Holotype and paratypes in my collection, a paratype Dept. of Agriculture, lea. , type 3+3. There are also certain differences in the male genitalia: the apical part of the stylus is strongly incrassate and heavily sclerified. The connective (Fig. 3 c) is shorter and robuster, with the arms strongly diverging basally, con­ verging and fused to each other apically.

In the following Old World genera the anterior marging of the head is acute or subacute: Doratura Sb., Doratu- ropsis Ldb. {—Adoratura Kusn.) and Chiasmus M.R. In Doratura the anterior margin of the head is more acute and ± uncurved, the elytra are short, squarish and coria­ ceous, the spinulation of the fore tibiae is 4+4, the styli are very different, with a long and falcate apophysis and the penis is shorter and digitate. The species of the genus Doraturopsis are much larger. The head is shorter, with the apical margin upcurved. The elytra in the brachypterous form are shorter, more coriaceous and provided with small dark tubercles. The spinulation of the fore tibiae is 4+4. The pygophore (male) is broad and very short, not incised dorsally, concealing therefore nearly totally the anal tube, the side lobes are broadly horizontally recurved mesad. The styli have a long apophysis and the stem of the penis is thick and relatively short. In Chiasmus the head is longer, with the fore margin more acute, the crown is distinctly shagreened and the ocelli are on the crown. The elytra are short and coriaceous. The spinulation of the hind knees is 2+1. The stem of the penis is short and digitate etc. In Aconura Leth. [=Carinifer kv.) the face is more convex, the anterior margin of the head is rounded to the face, the spinulation of the fore tibiae is 3+3, the genital plates (male) are sharply triangular, the pygophore is strongly setose, the connective is shorter and robuster, etc.

The find of the tribe Doraturini in South America is interesting in a zoogeographical point of view. Icaia has certainly been evolved from an early ancestor, probably of the Athysanella stock, migrated into South America along the mountain ranges from the North. Later climatic changes have then led to a complete isolation. It is interesting that Icaia in some respects (the shape of the connective and the styli and the structure of the head) more closely re­ sembles certain Old World genera than the nearctic Athy­ sanella. FIC. 5 6 c FIG. 5. Icaia gnathenion n.gen. et sp.; a penis, ventral aspect; b con­ nective.— Athysanella sp.: c connective. Diciembre, 1973 17

TWO NEW SPECIES OF THE FAMILY CICADELLIDAE FROM PERU 1

R. Linnavuori2

1. BERGALLIA ROSA n.sp. (AGALLIINAE) 2. AMPLICEPHALUS ICA n.sp. (DELTOCEPHALINAE)

Length 3.25 mm. Shiny. Ground colouring yellow- Length macho 2.75 mm., hembra 3 mm. Shiny. Pale brown. Antennal pits and sutures of ante and frontoclypeus ochraceous, with only indistinct dark pattern. Frontocly­ black. Frontoclypeus with 8 pairs of short black lateral peus slightly embrowned, with midline and lateral arcs arcs in lower part; upper part with faint curved brown pale. Ocellocular area with two dark spots. Crown (fig. lines, forming a roughly triangular figure. Crown with two 2 a) with 4 small blackish dots in anterior margin, disk roundish black spots and a transverse dark spot at either with traces of irregular fulvous markings. Eyes brown. eye. Pronotum with a well developed dark brown pattern Pronotum with 6 very faint fulvous longitudinal bands. Ely­ as in fig. 1 a. Basal triangles and a central cruciate figure tra tinged with yellowish brown, veins paler, narrowly on scutellum blackish. Elytra hyaline, tinged with yellow­ bordered with fuscous. Under surface with faint brown ish brown; claval veins whitish, intermittently marked with markings. Legs yellow-brown, femora with a few tranverse dark brown especially apically; veins of corium dark brown, dark spots, tibiae with small dark dots. Ovipositor sheath a small white spot at fork of first sector. Under surface dark. largely darkened. Legs yellowish brown, femora with faint Small. Crown bluntly angularly produced, distinctly fuscous irroration. longer at middle than near eyes. Elytra about as long Small and relatively slender. Anteclypeus and lori not as abdomen, apical cells relatively short, 3 closed sub- swollen. Pronotum distinctly transversely striated and apical cells. Spinulation of fore tibiae 1+4. Male genitalia sparsely and indistinctly punctate. Elytra elongate. Male in fig. 2 b-d. 7th sternite (female) with a small median genitalia: Side lobes of pygofer truncate apically as in lobe on concave posterior margin, embrowned at middle. 6. arica (fig. 1 f). Pygofer spines (fig. 1 d) with a triangular Material studied: Peru, lea, Hda. Las Palmas, 1 male, subapical expansion. Penis (fig. 1 b-c): stem slender, type, in my collection, 9.VIII.1970 and Hda. La Mejia, 1 slightly recurved ventrad apically, provided with a pair of female, paratype, in Mus. lea, 16.VII.1970, Uribe. falcate apical processes directed laterad and with a third apical spine bent dorsad. Other genitalia of the common Host: Cynodon dactilon type. Very closely related to A. sonorus (Ball) (redescribed Material studied: Peru, lea, Hda. Santa Rosa, 1 male, in Linnavuori 1959, p. 113), but differing in the paler colour­ type, in my collection, 13.VIII.1970, Uribe. ing, the reduced apical spots of the crown (considerably

FIG. 1 Bergallia rosa n.sp.: ahead and pronotum: b penis from side; c same, ventral aspect; d pygofer spine.— B. arica Lv.: e same; f side lobe of pygofer. FIG. 2 Amplicephalus ica n.sp.: a head a nd pronotum (macho); b penis.

Host: Cynodon dactilon larger and contrasted in sonorus) and the shorter elytra (in sonorus longer than the abdomen). Moreover the Closely related to 6. arica Lv. (Chile, Peru), but the genital plates of the male are somewhat longer and dark­ transverse stration of the pronotum considerably sparser. ened apically. The apophysis of the stylus is slightly longer Moreover the pygofer spines are falcate in arica (fig. 1 e) and thicker (broad aspect). The penis is longer, length and the penis is provided with only two apical processes. 0.345 mm. (= 23 units), in lateral aspect straighter and a little thicker and provided with a pair of small sub- apical teeth on the dorsal surface. In A. sonorus the length of the penis is 0.300 mm. (= 20 units).

REFERENCES: Linnavuori, R. 1959: Revision of the neo­ 1 Recibido para publicación Noviembre, 1972. tropical Deltocephalinae and some related subfamilies. — Ann. Zool. Soc. Vanamo 20:1, p. 1-370. 2 Raisio, Finland