Dendrocoris nelsoni, Thomas & H. Brailovsky, 1999

Dendrocoris nelsoni , new species

( Figs. 6, 7, 14)

Description. Body compressed, oval. Dorsal color brick orange fading to yellow with dark punctatíons on margins ofjuga and anterior pronotum. Cicatrices concolorous with pronotal disk. Venter yellow mesially darkening to orange laterally. Length of body (from tip of juga to abdominal terminus) 5.5 mm; width (across humeri) 3.3 mm. Head.- Vertex tumid, densely punctate. Juga contiguous before tylus; lateral margins of tylus sinuate in dorsal view, lacking teeth. Antennal segment I shortest, slightly shorter than 11; I11 longest, V longer than IV. Rostrum attaining metacoxae in repose. Head length (from jugal apices to imaginary line connecting ocelli) 1. 1 mm; head width (across anteocular apices) 1.1 mm.

Thorax. Anterolateral pronotal margins compressed,thin; feebly sinuate in dorsal view. Humeri obtusely angular, weaklyproduced. Pronotallength at midline, 1.3 mm. Hemelytral membrane transparent,vaguelyinfuscated at base. Length ofscutellum 2.2 mm. Propleura and mesopleura with dark punctations on disk. Legs immaculate.

Abdomen. Both sexes with tubercle at base of abdomen though very weak in males. Laterotergites of connexivum concolorous with corium and scutellum.Each angle of abdominal sternites with narrow, dark spot. Spiracles concolorous with abdominal disk.

Genitalia. Male pygophore with mesial emargination on posterior face; a thin bidentate lamina seated in emargination. Posterior face devoid of teeth.Margins lateral to emargination on each side obtusely produced and bent into simple, rounded flange, which lacks a notch at its apex ( Fig. 6). Paramere small,head acuminate with a modestly produced angulation at its base ( Fig. 7). Female with very small basal plates (first gonocoxites). Ninth paratergites terminate far from margin of eighth paratergites, which lack spiracles ( Fig. 14).

Types. Holotype: male, labeled: Mex., Chihuahua, 20 mi. E. Tonichi , IV-27-82. D.A. & W.T. Polhemus. Deposited UNAM . Allotype female, labeled same data as holotype. Deposited UNAM . Paratypes: female, labeled: 1 Mi. N. Creel , Chih., Mex., Aug. 30, 1950, Ray F. Smith ( DAR) . Male, labeled: Colo., Douglas Co., Perry Park , V- 20- 78, D.A. Polhemus ( DAR) . Male, labeled: Larimer Co., CO., 5 June 1995, D. Leatherman above DixonRes. ex: Ponderosa Pine ( DBT) . Female, labeled: AZ, Yavapai Co., Antelope Hills , 35"25'N, 112"04'W, 4,000 ft., 7- 6- 95 ( DBT) . Female, labeled: (a) Angus , N.M., V-18-85, 3 mi. N., (b) Pinus . (c) W.F. Chamberlain ( DBT) .

Etymology. The species is named for Gayle H. Nelson, a revisor of this genus.

Remarks. Two of the paratype specimensbear collection labels for pine. I have also collected a specimen on juniper. In addition to the types Ihave seen specimens from Nuevo Leon and Coahuila, Mexico.