Angelopsallus, Schuh, 2006

Schuh, Randall T., 2006, Revision, Phylogenetic, Biogeographic, And Host Analyses Of The Endemic Western North American Phymatopsallus Group, With The Description Of 9 New Genera And 15 New Species (Insecta: Hemiptera: Miridae: Phylinae), Bulletin of the American Museum of Natural History 2006 (301), pp. 1-115 : 6-19

Angelopsallus , new genus

Type species: Psallus gregalis Van Duzee, 1923 .

DIAGNOSIS: Recognized by the relatively small size among Phymatopsallus -group taxa, average total length 2.32, whitish coloration (according to Van Duzee, 1923) (fig. 1), the lack of sexual dimorphism in the eyes and antennae, the absence of a tubercle on the left side of the pygophore, the relatively short, slender spine on the ventral surface of the phallotheca (fig. 5), the elongate vesica lacking ornamenation (fig. 5), and the elongate, flattened, parallel-sided right paramere (fig. 5). Most readily confused with Knightopsallus portalensis Schuh , but distinguished by the larger, sexually dimorphic eyes and cylindrical antennal segment 2 in that species (fig. 27D); in addition, details of male genitalic scructure differ, K. portalensis with a relatively broad spine on the posterior surface of the phallotheca and a moderately elongate, apically tapered right paramere (fig. 28), in contrast to the ventral phallothecal spine and less conspicuously elongate, strongly parallel-sided right paramere in Angelopsallus (fig. 5). Also confused with Phymatopsallus species because of the similar size and conformation of the body; however, males readily distinguished by the differences in the form of the phallothecal spines in the two taxa and the absence of the vesical spine in Angelopsallus .

DESCRIPTION: Male: Relatively small among Phymatopsallus -group taxa, elongate ovoid, total length 2.25–2.38, length apex clypeus–cuneal fracture 1.61–1.64, width pronotum 0.72–0.78. COLORATION (fig. 1): Body and forewings whitish ( Van Duzee, 1923); membrane weakly marmorate, veins pale; eyes silvery or pale; appendages pale,

weakly yellowish; femora with scattered weak brown spots; tibial spines pale, with small weakly brown spots at bases. SUR- FACE AND VESTITURE (fig. 1): Dorsal body surface smooth, impunctate, weakly shining. Dorsal vestiture of reclining, silvery, sericeous setae. STRUCTURE: Head: Head short, transverse, closely conforming

TABLE 1 Measurements of Phymatopsallus -Group Species

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to anterior margin of pronotum; frons weakly protruding beyond anterior margin of eyes; posterior margin of vertex rounded; eyes not enlarged in dorsal (fig. 1) and lateral views, occupying about about threefourths of height of head; antennae inserted just above ventral margin of eyes, eyes very weakly emarginate at antennal insertion; antennal segment 2 weakly tapered proximally, of similar conformation to that of female; labium reaching to apex of hind coxae. Thorax: Mesothoracic spiracle and metathoracic scent-efferent system similar to that of Bisulcopsallus spp. as determined from light-microscope examination of dried specimens. Legs: Claws moderately elongate, smoothly curving, pulvilli small, flaplike, located near middle of claw, parempodia setiform. Abdomen: Broad. GENITALIA (fig. 5): Pygophore: Conical, lacking tubercle on left side. Vesica: Formed of a single strap, apically attenuated, extending beyond secondary gonopore by about 2 times length of gonopore; secondary gonopore small, ovoid, without distinct gonopore sclerite. Phallotheca: Apical portion elongate, tapered, with a slender spine on ventral surface reaching about one-half distance to apex of phallotheca. Parameres: Left paramere of form found in many Phylini , but anterior process distinctly broadened and posterior process distinctly truncate; right paramere distinctly elongate, flattened, broad, and nearly parallel, lying over phallotheca and left paramere in repose.

Female: Elongate ovoid; total length 2.30– 2.41, length apex clypeus–cuneal fracture 1.64–1.67, width pronotum 0.73–0.81. COL- ORATION: As in male. SURFACE AND VESTITURE: As in male. STRUCTURE: Hemelytra just covering abdomen; eyes of similar size to those of male; antennal segment 2 tapered toward base, of similar structure to that in male. GENITALIA (fig. 4): Sclerotized rings more or less quadrangular; vestibulum large, tubular, vaguely nautiloid in shape, asymmetrical, but more or less central in position, entrance and exit apparently from closely apposed positions at base of ovipositor valves, apparent endpoint of vestibulum forming a large ‘‘chamber’’, at which point vestibulum doubles back on itself; insertion of accessory gland apparently removed anteriorly from base of lateral oviducts; posterior wall apparently destroyed in only dissected specimen.

niola and Larinocerus the sclerotized tubular vestibulum leads from the base of the ovipositor valves to a position laterally on the bursa copulatrix, whereas in Angelopsallus , Bisulcopsallus , and Ceratopsallus the vestibular tube doubles back on itself, causing the proximal and distal portions of the tube to lie parallel to one another and the entry and exit points of the tube to be very close together.

Angelopsallus gregalis (Van Duzee) , new combination figures 1, 4, 5; map 1

ETYMOLOGY: Named for the type locality, Angel de la Guardia Island, Gulf of California, Mexico, in combination with the generic name Psallus . Gender masculine.

HOST: Sideroxylon leucophyllum S. Watson (Sapotaceae) ( Van Duzee, 1923).

DISCUSSION: Many specimens from the Van Duzee collection, housed in the California Academy of Sciences, are badly faded. I have relied on the original description of Van Duzee (1923) as a way of understanding the original coloration of the present species.

The vestibulum in the female of Angelopsallus gregalis (fig. 5) is greatly enlarged, a condition also seen in Bisulcopsallus (fig. 8) and Ceratopsallus (fig. 17). This enlargement differs significantly from the type reported by Henry and Schuh (1979) in Hambletoniola Carvalho and Larinocerus Froeschner (as Beamerella Knight ), and as known from some other phyline taxa on the basis of unpublished observations (M.D. Schwartz, personal comm.). In Hambleto- Psallus gregalis Van Duzee, 1923: 159 (n.sp.).

DIAGNOSIS: See generic diagnosis.

DESCRIPTION: See generic description.

HOST: Recorded by Van Duzee (1923) from Sideroxylon leucophyllum (Sapotaceae) .

DISTRIBUTION (map 1): Known only from Angel de la Guardia Island, Gulf of California, Baja California Norte, Mexico.

HOLOTYPE: MEXICO: Baja California Norte: Angel de la Guardia Island, Palm Canyon [29.33333 ° N 113.41666 ° W], 03 May 1921, E.P. Van Duzee, 1 Oi ( AMNH _ PBI 00077831 ) ( CAS).

PARATYPES: MEXICO: Baja California Norte: Angel de la Guardia Island, Palm Canyon, 29.33333 ° N 113.41666 ° W, 03 May 1921, E.P. Van Duzee, 1Oi ( AMNH _PBI 00077130), 1♀ ( AMNH _PBI 00077131) ( AMNH). 5Oi ( AMNH _PBI 00068781, AMNH _PBI 00077129, AMNH _PBI 00077208– AMNH _PBI 00077210), 2♀ ( AMNH _PBI 00077132, AMNH _PBI 00077133) ( CAS).