Neoriazocoris punjabensis (Ahmad and Kamaluddin)

Neoriazocoris punjabensis (Ahmad and Kamaluddin)

( Figs. 1 A-D)

Caystrus pujabensis Ahmad and Kamaluddin 1989 : 171

Colouration and general shape

Mostly as described by Ahmad and Kamaluddin (1989). Generally drab looking, dark brown with thick black punctures, except thin lateral portions of pronotum, thin collar, 2/3 rd of median anterior longitudinal line of head and a short median thin longitudinal line of pronotum, an eye-shaped patch on each side of this line, a median longitudinal line upto basal lobe, and a spot on each basal angle of scutellum; basal portion of 5 th antennal segments and large median portions of first gonocoxae and eighth paratergites pale; eyes brownish black; ocelli reddish brown; membrane of hemelytra smoky; body generally oblongate, length distinctly more than maximum width of pronotum;

Head

Distinctly broader than its length, anteocular distance slightly shorter than remainder of head, paraclypei shorter than clypeus, latter dorsally raised, lateral margins slightly sinuate and anteriorly rounded with convex margin, paraclypeal lobe just above the eyes rounded; antennae with basal segment shorter than haed apex, length of antennal segments I 0.5, II 0.9, III 0.9, IV 1.4, V 1.7, antennal formula 1<2=3<4<5; labium passing much beyond hind coxae reaching to 3 rd abdominal venter, length of labial segments I 0.8, II 1.4, III 1.3, IV 0.9; labial formula, 1<4<3<2; length of anteocular region 0.8; posterior of head including eyes 0.9; width of head 2.6.

Thorax

Pronotum distinctly less than 2.25X broader than its length, lateral margins slightly sinuate, anterior angles spinously toothed, laterally directed, length 2.2, width 4.9; scutellum longer than broad with rounded apical lobe, length 3.6, width 2.6; metathoracic scent gland auricle ( Fig. 1B) much shorter with markedly subacute apex having posterior margin convex, round beyond ostiole reaching to much less than ½ of evaporatoria, ostiole with ovate opening, evaporatoria distinct; membrane of hemelytra slightly passing beyond abdomen; distance base scutellum- apex clavus 2.69; apex clavus-apex corium 2.1; apex coriumapex abdomen including membrane 3.8.

Abdomen

Posterior margin of 7 th abdominal sternum medially U-shaped, deeply concave, markedly constricted at the lateral junction of eighth and ninth paratergites, lateral angles triangular, lobed-like; connexiva hardly exposed at repose; total length of female 10.5.

Female genitalia

Terminalia ( Fig. 1C) having first gonocoxae with a knob on each side of posterior angle, much larger than 8 th paratergites, medially fused posterior margin of the latter distinctly medially concave, shallowly U-shaped; 9 th paratergites posteriorly, medially round; spermatheca ( Fig. 1D) with spermathecal bulb having two elongate, tubular finger-like processes, of more or less equal size hardly reaching beyond distal flange, sclerotized median duct highly dilated at both ends, median swelling elongately oval; proximal spermathecal duct about 2x longer than distal spermathecal duct.

Material examined

Holotype female, Pakistan, Punjab: Tounsa , on Desmostachya bipinnata L. 22-3-1989, leg. Mohammad Rahim, in NHMUK .

Comparative note

This new species at the moment is the only species of its genus and is known by its generic characters and could easily be separated from the two known specific taxa of Riazocoris Ahmad and Afzal by the characters noted under the comparative note of its genus and under “discussion” with reference to its phylogenetic relationships.