Cacopsylla qilianensis, Luo & Li & Cai, 2016

Luo, Xinyu, Li, Fasheng & Cai, Wanzhi, 2016, Chinese psyllids in the genus Cacopsylla (Hemiptera: Sternorrhyncha: Psylloidea) associated with Spiraea (Rosaceae), Journal of Natural History 50, pp. 2215-2235 : 2225-2229

publication ID

https://doi.org/ 10.1080/00222933.2016.1193644

publication LSID

lsid:zoobank.org:pub:7A048333-56D1-41BF-BDC9-3D4D948BB6E6

DOI

https://doi.org/10.5281/zenodo.4328737

persistent identifier

https://treatment.plazi.org/id/A2EB9D7C-CB74-476B-BFE0-DF34B67160C9

taxon LSID

lsid:zoobank.org:act:A2EB9D7C-CB74-476B-BFE0-DF34B67160C9

treatment provided by

Carolina

scientific name

Cacopsylla qilianensis
status

sp. nov.

Cacopsylla qilianensis sp. nov.

Figures 5 View Figure 5 (a–g), 6(a–c), 8(d), 10(g–h)

Description

Adult.

Colouration ( Figure 10 View Figure 10 (g–h)). Body orange in overall view. Vertex orange. Genal processes yellow. Compound eyes brown, ocelli orange. Antenna yellow, with black apex on segment VIII, and segments IX–X entirely black. Thoracic dorsum pale grey, with reddish orange stripes. Thoracic pleurites mostly orange, trochantin of metathorax more or less blackish. Ventral aspect of mesothorax black, except for a transverse narrow band in the middle. Legs yellow; metacoxa blackish; dorsal surface of femora blackish. Fore wing ( Figure 5 View Figure 5 (f)) membrane translucent, grey, darker in apical margin, gradually turning light basally; veins slightly darker than membrane. Abdomen orange; lateral end of anterior margin of terga of segments III–VII light brown to black, darkest in segment III, gradually lightening by each segment; ventral surface with two longitudinal brown bands. Male and female terminalia orange.

Structures. Head ( Figure 5 View Figure 5 (a)) inclined from longitudinal body axis by 90°, slightly narrower than mesoscutum transversely. Boundary between vertex and gena clear and nearly straight, antero-outer angles nearly rounded; plane of vertex distinctly higher than that of genal processes; discal foveae relatively shallow. Surface of vertex finely sculptured with scaly microstructures and microscopic setae. Gena processes about half as long as median suture of vertex, moderately divergent apically, with apices blunt. Antenna about as long as HW; terminal setae relatively short, the more distally situated one about 1/3 as long as the more proximally situated one ( Figure 5 View Figure 5 (g)).

Mesopraescutum moderately produced forward, pressing pronotum to be moderately arched. Metatibia without genual spine, with five apical spurs (in one case six), midial ones irregularly grouped. Fore wing ( Figure 5 View Figure 5 (f)) oblong oval, widest in apical 1/3; height of cell cu 1 indistinctly longer than length of vein Cu 1b; surface spinules small and dense, completely covering the whole fore wing membrane; fields of radular spinules as shown in Figure 5 View Figure 5 (f).

Male terminalia: Proctiger ( Figure 5 View Figure 5 (b)) relatively short and thick, with produced posterior margin, gently arched, covered with nearly evenly spaced short setae. Paramere ( Figure 5 View Figure 5 (b–c)) blade-shaped in profile, strongly curved forward, without distinct apical tooth; inner surface with rather few setae; anterior half of the base with relatively dense setae. Distal segment of aedeagus ( Figure 5 View Figure 5 (d)) relatively short; apical dilatation near oval, slightly inclined downwards, not hooked; sclerotised end tube of ductus ejaculatorius projected obliquely backwards, and gently curved upwards. Subgenital plate ( Figure 5 View Figure 5 (b)) near square in profile, dorsal margin slightly folded inwards; ventral surface with relatively dense setae.

Female terminalia ( Figure 5 View Figure 5 (e)): Rather short. Longitudinal row of rather long setae in dorsum of apical process not clearly recognisable; bilateral sides of apical process of proctiger without peg setae, short and slender setae present instead. Subgenital plate rather short, forming a wide opening with proctiger, without peg setae. Valvulae dorsalis and ventralis stretching obliquely upwards, partly hidden beneath the cavity of proctiger.

Fifth instar immature.

Colouration. Membranous parts orange. All sclerites dark brown. Antenna yellow, with apical three segments black. Compound eyes reddish brown.

Structures. Dorsum completely covered with a type of specialised simple setae (awlshaped, termed conical seta below), including ocular and postocular setae ( Figure 6 View Figure 6 (a)). All bases of setae strongly sclerotised ( Figure 6 View Figure 6 (a)), following the colour of normal sclerites. Antenna ( Figure 6 View Figure 6 (a)) 7-segmented, with one rhinarium on apex of segments 3 and 5 each, and two rhinaria on segment 7; segment 7 relatively short, with the two rhinaria relatively close. Wing pads ( Figure 6 View Figure 6 (a)) large; fore wing pad oval, outer margin decorated with dense conical setae varying in length, anterior half with one pore; hind wing pad knife-shaped, with two long conical setae on apex. Dorsum of mid and hind tibialtarsus with two long capitate setae ( Figure 6 View Figure 6 (a)). Tarsal arolium ( Figure 6 View Figure 6 (b)) fishtailshaped, with expanded areas rather coarse, with relatively long pedicel gradually growing narrow basally, and with well-developed unguitractor. Third pair of sclerites with spiracle in abdominal ventrum completely free from anal plate ( Figure 6 View Figure 6 (a)). Abdominal ventrum ( Figure 6 View Figure 6 (a)) with long or short conical setae near the margin, other parts with long or short simple setae. Abdominal margin ( Figure 6 View Figure 6 (a)) with 7 + 7 rather long conical setae, innermost pair relatively short; and with 2 + 2 sectasetae. Circum anal pore field

( Figure 6 View Figure 6 (c)) ventral, composed of a complete outer ring of single row of slit-shaped pores, and a complete inner ring of jagged single row of oval pores.

Materials examined

Holotype: male, dry mounted, Sidalong forestry farm, Sunan, Gansu, China, altitude 2410 m, 38°28 ′ 26 ″ N, 99°58 ′ 2 ″ E, 4 August 2013, Luo Xinyu, on Spiraea myrtilloides GoogleMaps . Paratypes: 3 males, 2 females, dry mounted, 2 males, 2 females, preserved in absolute ethanol, 1 male, 1 female, slide mounted, 6 fifth instar immatures, preserved in absolute ethanol, same data as holotype; 3 males, 4 females, preserved in absolute ethanol, Kangle forestry farm, Sunan, Gansu, China, altitude 2675 m, 38°50 ′ 6 ″ N, 99°41 ′ 54 ″ E, 6 August 2013, Luo Xinyu, on Spiraea sp.

Host plant

Spiraea myrtilloides .

Etymology

Named after the type locality, the Qilian Mountains .

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Psyllidae

Genus

Cacopsylla

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