Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 84. (Budapest 1992)

Štusák, J. M.: Two new species of Pneustocerus Horváth, 1905, with a list of already known species (Heteroptera, Berytidae)

ferent synthlipsis, different shape of pygophore, etc. The new species is most similar to P. gravetyi (DISTANT, 1911) (Sri Lanka, India), and it can be distinguished by unicolorously light legs (not with piceous points as in P. gravetyi), by blackish ostiolar canal and blackish inner convex apex of ostiolar process, by longer synthlipsis (synthlipsis 2.74 times longer than width of eye in P. gravetyi) and especially by convexly vaulted posterior margin of pygophore in lateral wiew, in difference from concave posterior portion in P gravetyi (Figs 8-11). Pneustocerus malayanus sp. n. (Figs 9,12-19) Derivation of name: The new species is named malayanus in reference to the type specimens which all were collected in Malaya. Diagnosis: First labial segment approximately as long as ventral portion of head, antennae (except apex of 4th segment) and whole legs black. Antennae about 1.6-1.8 times longer than body. Posterior portion of pygophore convex in lateral view (Fig. 9). Description: Body about 6.6 to 6.9 times longer than its maximal width (which is in region of prothorax or hemelytra in both sexes). General colour light rusty ochreous, with blackish antennae and legs. Head as long as wide (1.0-1.2 times longer than wide), light smooth and glossy, very similar as in P. vicinus sp. n. Frons between bases of antennae triangularly narrowed from sides and hemmed (list-like bordered). Synthlipsis 2.4 times (male) or 2.6-3.2 times (female) wider than dorsal width of eye. Size, placing and distances of ocelli as in P. vicinus sp. n. Head with sporadical, very short and fine hairs. Single longer hairs situated only in anterolateral angles of antenniferous tubercles and on apex of narrowed frons (two hairs). Antennae 1.75 times longer than body in male and 1.57-1.61 in female; 1st antennái segment much longer than half the body (0.78 in male and 0.69-0.71 times in female shorter than body), and indistinctly shorter than 2nd and 3rd segments together (0.91-0.97 times). Second segment 1.24-1.36 times longer than 3rd, 4th segment 2.92 times (male) or 2.6-2.7 times (female) shorter than 2nd and 2.21 times (male) or 1.9-2.1 times (female) shorter than 3rd. Antennae blackish except the extreme base of first and apical half of 4th segment. Fourth segment narrowly spindle-like, about 8 times longer than wide. - Rostrum reaching between posterior coxae, 1st labial segment the longest, reaching to or a little beyond anterior margin of prothorax, 2nd segment reaching beyond anterior coxae. Relation of labial segments: I:II:III:IV=16.5:14:13:14 = 0.70 mm:0.62 mm:0.54 mm:0.59 mm. First labial segment dark ochreous, 2nd to 4th piceous. - Pronotum 1.41-1.43 times longer than wide and 1.3 times longer than 4th antennái segment. Anterior pronotal marginconsiderably convex, posterior margin moderately concave. Pronotum usually represents the widest body portion. Anterior pronotal lobe rather short, occupying only 26% of total pronotal length. Anterior portion of anterior pronotal lobe with 3 transverse rows of areolae, posterior portion is occupied by large, considerably upwardly convex, unpaired and shiny callosity which is longer than anterior portion of anterior pronotal lobe. Pronotal carinae only slightly distinct and humeral elevations very low, similarly as in related species. Also posterior lobuli of pronotum rather small. Posterior pronotal lobe rather convexly rounded and areolated. Scutellum about twice wider than long, armed with robust and relatively wide but acutely pointed, hornlike spine which is upwardly directed. Scutellum with several coarse punctures. Posterior margin of scutellum not angular but almost arch-like, broadly convex. - All supracoxal lobes convex and areolated. Ostiolar process very long and reaching considerably beyond level of hemelytra, its apex bent backwardly. Distal half of the process piceous including ostiolar canal, inner apical portion slightly convex. Hemelytra unpunctured and transparent reaching half of 7th tergite in both sexes. Veins of corium light ochreous. - Abdomen ochreous, smooth and glossy. Mediotergites 3+4+5+6 and sternites 3+4+5 fused in male, and mediotergites 3+4+5+6 and sternites 3+4 fused in female. Trichobotriae and spiracula as in P. vicinus sp. n. - Legs very long, posterior femora reaching far beyond apex of abdomen (more than the length of apical clava of the femur). Coxae and trochanters (and sometimes also extreme bases of femora) ochreous brown, femora including whole clavae, tibiae and tarsi intensively piceous. First segment of posterior tarsus much longer than 2nd and 3rd together, 2nd inconspicuously shorter than 3rd. - Measurements in mm: Length of body 6.637.31, maximal width of body (pronotum or hemelytra in some specimens) 0.98-1.06, length of head 0.64-0.72,