Macrolema quadrivittata (Jacoby)

Reid, C. A. M. & Beatson, M., 2010, 2486, Zootaxa 2486, pp. 1-60 : 23-24

Macrolema quadrivittata (Jacoby)

( Figs 12, 28, 35, 42, 54, 58, 75, 89, 107, 122, 133)

Macrogonus quadrivittatus Jacoby 1898: 352

Macrolema quadrivittata: Reid 2000: 862

Material examined

Types: Lectotype (this designation): male: / Queensld./ Macrogonus 4-vittatus / BM 1909-28a/ type HT/ lectotype / lectotype Macrogonus 4-vittatus Jac. det C. Reid i.1991 / [ BMNH]; paralectotype: male: / Queensld./ Macrogonus 4-vittatus; BM 1909-28a/ paralectotype / paralectotype Macrogonus 4-vittatus det C. Reid i.1991 / [ BMNH].

Non-types (28): Queensland: 10 males, 2 females: / Cairns dist., A. M. Lea / Macrogonus quadrivittatus Jac. , Queensland / [ SAM]; female: / Cairns NQ / [ SAM]; male: / Cairns NQ 1920/ [ QMB]; female: / Kirrama Range , NEQ, Douglas Ck Rd , 800m, 9–12.xii.1986, Monteith , Thompson , Hamlet / [ QMB]; female: / Kirrama Range NEQ, Mount Hosie , 800–930m, 10.xii.1986, monteith, Thompson, Hamlet / [ QMB]; female: / L.[ower] Mulgrave R , Q, H. W. B., 17.iv.[year missing]/ Griffith collection, Id. by A. M. Lea / [ SAM]; female: / 17:37S 145:34 E Qld, Massey Ck , 1000m, BS3, malaise trap, 3.i–4.ii.1995, P. Zborowski / [ ANIC]; female: / Mt Bellenden Ker summit, via Cairns Qld, 5,200’, light trap, 10–18.i.1977, R . I. Storey / [ QDPIM]; male: / Bellenden Mtns N. Queensld / Jacoby coll 1909-28a/ [ BMNH]; male: / Mt Lewis , 8mi NW Mt Molloy Q, 2700ft, 15.iii.1964, I. F. B. Common & M. S. Upton / [ ANIC]; female: / Rockhampton Q H. W. Brown / [ AMS]; female: / Rollingstone, 1946/ S. R . E. Brock collection, donated to ANIC 1987 / [ ANIC]; 3 males, 1 female: / S. Johnston R ., Queensland, H. W. Brown / [ AMS, SAM]; 2 males: / Upper Mulgrave River, N Qld , 1–3.xii.1965, G. Monteith / [ UQB] .

Description

Length: males 8–9mm, females 9.5–12mm; body convex in profile, length c.2.7x height. Body and appendages yellow, except unmetallic black or dark brown on: apices mandibles, most of antennomere 1 and apical ½ to apical 4/5 of segments from base to apex of antenna, vertex except midline, two spots on pronotal disc (may be absent), two broad stripes on each elytron from base almost to apex (in some males coalescent to whole elytron except margins; in some females thinner medially), apices of femora, spot on posterior of postfemur (sometimes absent), apices of tibiae and outer face of protibia, tarsi except bases of tarsomeres, sides of ventrites I–III.

Head ( Figs 12, 28, 35): head puncturation variable, frontoclypeus finely and sparsely punctured or more strongly and closely punctured compared with almost sparsely punctured vertex; depressed between eyes, with shallow groove on midline of vertex; eyes separated by c.3.5x eye widths (male) or c.4.4x eye widths (female); gena c.0.24–0.26x eye length; antennae c.4x socket diameters apart; antennae c. 0.9x body length (male), or c. 0.6x body length (female); all antennomeres elongate: 2 shortest (c.0.5x first), <3, <1=4, <5=6=8=9=10, <11, <7 (male), female similar but 4=5=6=8=9=10=11, <7; labrum not densely setose, with 2– 3 pairs of prominent setae; apical maxillary palpomere elongate, almost cylindrical in male, more fusiform in female, preapical palpomere shorter than apical.

Thorax ( Figs 12, 42, 54, 58): pronotal puncturation variable, from close to sparse, with scattered large punctures, more diffusely on anterior half of disc, shining, with scattered distinct micropunctures between macropunctures; pronotal width 1.70–1.85x length, with strongly developed convex lateral lobes at middle; pronotal disc with pair of deep or shallow lateral depressions, or these absent, and without shallow basal depression; anterior margination absent from middle third; hypomeron impunctate; prosternal process narrow and strongly arched from base to truncate apex, posterior face concave; scutellum impunctate, elongatetriangular with blunt apex; elytron without depressions on basal half of disc; elytral punctures fine and shallow in basal half, evanescent towards apex; elytra striate, with striae 1–9 regular, interstrial punctures minute; without depressions along basal half of elytron adjacent to epipleuron; upper margin epipleuron reaching base of elytron, but not continued on basal edge; mesoventrite median process strongly arched to truncate apex; metaventrite shining, sparsely and minutely punctured, anterior without median depression and with incomplete margination, edge pitted lateral to middle; metepisternum not microreticulate, strongly punctured; 1 short spur on protibia, 2 on remainder.

Abdomen ( Figs 58, 75, 89, 107, 122): ventrites I and II entirely fused; male ventrites shining, not microreticulate, fairly closely and strongly punctured at sides, almost impunctate at middle, especially ventrites III– V, setae on I– V generally short and recumbent, not in distinct transverse bands and absent from midline; female ventrites I and V as male, II–IV microreticulate at sides and II with dense patch of fine punctures and recumbent setae each side of midline; ventrite I laterally keeled along basal 3/4, other ventrites without lateral keels; apex ventrite V broadly truncate in male, narrowly truncate in female; sternite VIII of male, membranous, broadly Y-shaped; apex of penis strongly mucronate in dorsal view, tip straight and blunt in lateral view; female sternite VIII with triangular basal apodeme, widest at apex; gonocoxite without obvious setae; spermatheca falcate, with densely coiled duct.

Notes

Macrogonus quadrivittatus was described from two unsexed specimens from Queensland ( Jacoby 1898: 352). There are three specimens from the Jacoby collection in BMNH. Two are labelled ‘ Queensld. ’, including one with an invalid holotype label, while the third is labelled ‘ Bellenden Mtns N. Queensld. ’ in Jacoby’s hand. The first two specimens are considered to be syntypes and the one with the holotype label is hereby designated lectotype, the other becoming a paralectotype. The third specimen is not a type .

Macrolema quadrivittata is a relatively common species in the Wet Tropics World heritage Area, from Kirrama Range north to Mount Lewis (Fig. 133), at a broad range of elevations (c. 20–1600m). The specimen from central Queensland is probably mislabelled, as Rockhampton is far from the nearest locality and the specimen comes from a collection (ex H. W. Brown) with many problematic labels (pers. obs., CAMR; see also under M. vittata ). The 30 specimens were collected in December, January, March and April. This species has been collected at light .