Two new species of the genus Doryphorina Melichar, 1912 (Hemiptera, Fulgoromorpha, Dictyopharidae) from China

Abstract Two new species of the genus Doryphorina Melichar, 1912, D. conglobatus Zheng, Yang & Chen, sp. n. and D. guizhouensis Zheng, Yang & Chen, sp. n., from China are described and illustrated. A key is given to identify all the known species of Doryphorina.


Introduction
The dictyopharid planthopper genus Doryphorina (Hemiptera: Fulgoromorpha: Dictyopharidae) was established by Melichar (1912) based on a single species D. stali Melichar, from Sumatra. Later, Fennah (1978) described two subspecies D. stali minor and D. stali subdeflexa from Vietnam. Song and Liang (2013) revised and elevated the status of the two subspecies to species, the genus contained three species D. stali (Burma, Malaysia, Indonesia), D. minor (Vietnam, China: Guangxi, Hainan, Guangdong, Guizhou) and D. subdeflexa (Vietnam, China: Yunnan). In this paper, two new species D. conglobatus sp. n. and D. guizhouensis sp. n. from China, are described and illustrated. A key to identify all the known species of Doryphorina is given.

Material and methods
Material examined here is deposited in the Institute of Entomology, Guizhou University, Guiyang, China (GUGC). Dry specimens were used for the observation, description and illustration. Genital segments of the examined specimens were macerated in boiling solution of 10% NaOH and drawn from preparations in glycerin jelly under a Leica MZ12.5 stereomicroscope. Color pictures for adult habitus were obtained by a KEY-ENCE VHX-1000 system. Illustrations were scanned with Canon Cano Scan LiDE 200 and imported into Adobe Photoshop CS6 for labeling and plate composition. Terminology of morphology, genital characters and measurements follow Song and Liang (2013).
The following abbreviations are used in the text, BL: body length (from apex of cephalic process to tip of fore wings); HL: head length (from apex of cephalic process to base of eyes); HW: head width (including eyes); FWL: forewing length; GUGC: Guizhou University, Guiyang, China.
Male genitalia. Pygofer (Fig. 16) wider ventrally than dorsally, posterior margin with a blunt process, ventral margin depressed to accommodate anal tube. Anal tube (Fig.18) in dorsal view, with apex broader than base, the ventral margin with wrinkle. Gonostyles (Fig. 16) relatively small in lateral view, with apical margin not exceeding the apex of anal tube in lateral view, inner face with numerous setae in ventral view. Aedeagus (Fig. 19) with 1 pair of short endosomal processes, without extending from phallotheca. Phallobase (Figs 19-21) sclerotized and pigmented, with 2 pairs of apical membranous lobes: dorsal apical lobes (Fig. 19) long and slender, with 3 long spines at base; ventral lobes ( Fig. 19)   Diagnosis. This species is similar to D. subdeflexa but can be distinguished from the later by phallobase with 2 pairs of apical membranous lobes, dorsal apical lobes (Fig. 19) long and slender, with 3 long spines at base (dorsal part with two pairs of dorsolateral apical lobes directed laterally, with 2-3 long apical spines in dorsal view in D. subdeflexa).
Etymology. This new species is derived from the Greek word "conglobatus", which indicate that the apical lobes of phallobase are connected. Description. Body greenish or greenish-ochraceous, marked with bluish green and reddish ochraceous on head and thorax.
Male genitalia. Pygofer (Fig. 27) wider ventrally than dorsally, posterior margin with a blunt process. Anal tube (Fig. 29) in dorsal view, the apex broader than base, the ratio of length to width about 1.8. Gonostyles (Fig. 27) relatively small in lateral view, shorter than the apex of anal tube in lateral view, inner face with numerous setae in ventral view. Aedeagus (Figs 30-32) with 1 pair of short endosomal processes, without extending from phallotheca. Phallobase (Figs 30-32) sclerotized and pigmented, with 2 pairs of apical membranous lobes: dorsal apical lobes (Fig. 31) long and slender, with 4 long apical spines each, ventral lobes ( Fig. 31)  Diagnosis. This species is similar to D. minor, but can be distinguished from the later by phallobase ventral lobes (Fig. 31) with 2 pairs of apical lobes connected, not produced laterally, apex and base with about 16-19 long spines totally in ventral view (ventral part with two pairs of V-shaped elongate apical lobes, directed laterally and ventrally, each with 4-5 long spines in ventral view in D. minor).
Etymology. This new species name refers to the type locality, Guizhou Province.

Discussion
D. conglobatus sp. n. is similar to D. subdeflexa but can be distinguished from the later by phallobase lobes; D. guizhouensis sp. n. is similar to D. minor and D. stali but can be distinguished from D. minor by phallobase ventral lobes (Fig. 31); and can be distinguish from D. stali by phallobase dorsal lobes (Fig. 32); D. conglobatus sp. n. can be distinguished from D. guizhouensis sp. n. and D. minor, D. stali by the relatively robust cephalic process; the forewings without dull ochraceous spot near stigma. So, external features and phallobase lobes play an important role to identify of all male species in the genus.
The new species and all described species all distributed Oriental region. So far, this genus belongs to Oriental region.