Henryhalticusphilippinensis gen. et sp. n., a minute halticine from the Philippines (Insecta, Heteroptera, Miridae, Orthotylinae)

Abstract Henryhalticusphilippinensisgen. et sp. n. is described from a single location in the Negros Oriental Province of the Philippines. The male and female genitalia are described and illustrated. On the basis of the genitalic characters, external morphology, and size and color, the new species is erected as a monotypic genus.


Introduction
Representatives of the hyperdiverse family Miridae are found in most regions and terrestrial ecosystems of the world (Cassis and Schuh 2012), and as with other speciesrich families, they display an astonishing range of morphologies and feeding preferences (Wheeler 2001). The subfamilial classification is stabilized, with eight subfamilies routinely recognized, of which the Orthotylinae are the third most diverse, with six included tribes (Cassis and Schuh 2012). The tribe Halticini is now routinely consid-ered an ingroup within the Orthotylinae, although Wagner (1973) previously regarded it as worthy of subfamilial ranking, but this has no significant contemporary support.
The present work involves the discovery of a minute halticine species from the Philippines. Specimens have been held in the American Museum of Natural History for a considerable time, and numerous colleagues have been uncertain about its suprageneric position and if it represents a new taxon. In this work I assign it to the Halticini based on genitalic and pretarsal characters, and recognize it as a new genus and new species, with commentary about its affinities.
This work is dedicated to Dr. Thomas J. Henry, whom I have known from the early 1980s. My memory is not precise but I do recall going on a fieldtrip to the Cascade Mountains with Tom, a trip organized by my Ph.D. supervisor, the late John D. Lattin. I also recall near the end of the trip a very large fir tree had fallen across a dirt road, and we had no other option but to retrace our tracks, adding many hours to our return journey. This gave us many hours to talk about the Miridae, a journey that we share with few other entomologists. Tom has worked with the previous miridology greats, including his close friend, the late Jose Carvalho. In the ensuing years he has become one of the mirid greats himself, and it is an honor to name a new genus after him. I wish him well in his taxonomic and personal exploits in the years to come.

Materials and methods
Specimens were borrowed from the American Museum of Natural History (AMNH). Two pairs of paratypes are to be housed at the University of New South Wales (UNSW). The specimens were digitized in the Plant Bug Inventory database (https://research. amnh.org/pbi/locality/).
Male and female genitalia were macerated in 5% KOH, rinsed in distilled water, and dissected and examined in glycerol. The genitalia were illustrated using a camera lucida attached to a Leica DMB compound microscope. External characters were examined and measured using a Leica 205C automated stereomicroscope and Leica digital software. External characters were also documented with a Hitachi Desktop TM3000 scanning electron microscope.
See species description for coloration, texture, vestiture, and fine details of genitalia.

Remarks.
Henryhalticus is unlike other halticines in color, size, and shape. This is one of the smallest mirids described, with both sexes <2 mm in length. This genus keys to the Australian genus Goodeniaphila Tatarnic, in Tatarnic and Cassis' (2012) global conspectus of the tribe Halticini. As with this latter genus, Henryhalticus lacks inter-ramal lobes on the posterior wall of the bursa copulatrix, but differs by possessing sclerotized rings on the dorsal labiate plates of the internal female genitalia. These two genera share a similar oval body, but Henryhalticus lacks any punctation or rugosity on the body, whereas Goodeniaphila has a rugose pronotum. The parempodia of these two genera are similar; however, Henryhalticus lacks tarsal pulvilli, in contrast to the former genus, which has large pulvilli. The male aedeagus is the most distinctive finescale difference between these two genera, with Goodeniaphila having multiple large endosomal spicules, whereas Henryhalticus lacks any endosomal sclerotization.
The aedeagus of Henryhalticus is most like that of Halticus Hahn. Both genera lack endosomal sclerotization, the posterior margin of the head is contiguous with the pronotum, and the posterior margin of the vertex is carinate. Henryhalticus, however, lacks sclerotized rings and tarsal pulvilli, and the efferent system of metathoracic glands is less well developed. In addition, the pronotum is more rounded posteriorly in Halticus and the mesoscutum is not as exposed in Henryhalticus. Diagnosis. Henryhalticus philippinensis is recognized by the following combination of characters: body oval; minute, <2 mm in length; orange (Figure 1); body with moderately dense distribution of decumbent simple setae (Figs 1, 2A, C); genital opening of pygophore terminal, oval (Figs 2H, 3A, B); left paramere V-shaped, with apex recurved, plus apical flange ( Figure 3C); right paramere upright, spoonlike apically ( Figure 3D); ovipositor greatly elongate ( Figure 1); gonapophyses 8 basally membraneous, nearly symmetrical ( Figure 4A); posterior wall simple, membraneous, laterally spiculate, without discrete inter-ramal lobes ( Figure 4B).
Measurements. See Table 1. Distribution. Known only from the type locality on Negros Island, in the Philippines, between February 15 and May 28, 1961.
Remarks. See generic remarks.