Melaloncha zurquiensis, Brown, 2006
publication ID |
https://doi.org/ 10.11646/zootaxa.1280.1.1 |
publication LSID |
lsid:zoobank.org:pub:55F01BD6-4319-49C1-AA45-AAF0B27AEF15 |
DOI |
https://doi.org/10.5281/zenodo.5072675 |
persistent identifier |
https://treatment.plazi.org/id/03870D30-FFB4-632C-7313-01FEFE9D4605 |
treatment provided by |
Felipe |
scientific name |
Melaloncha zurquiensis |
status |
sp. nov. |
Melaloncha zurquiensis View in CoL new species
Figs. 21 View FIGURES 13–24 , 60 View FIGURES 56–61
Recognition. This species is extremely similar to lowland species M. laselvae , from which it can be distinguished by characters in the key. The situation between these two species is similar to that between M. digitalis and the similar species M. immaculata , described above. In both instances there are species pairs that are structurally similar, but one of which is found at middle elevations attacking a different host than the other in the lowlands.
The male does not key easily in Borgmeier’s (1971b) key. Couplet 9 differentiates mediumsized (2.5 mm) from smaller (1.8–2.0 mm) species, but the single male specimen of M. zurquiensis is 2.1 mm. If we consider this as smaller, the specimen keys to M. costaricana (see Remarks for M. sinistra group, above) from which it differs by the longer setae on the surstylus.
Description. Female. Body length 1.9–2.3 mm. Frons orange, punctate; ocellar triangle black. Mean frontal width 0.41 head width, range 0.41–0.42. Ocular and genal setae black. Flagellomere 1 and segments 1–2 of arista orange; aristomere 3 dark. Palpus yellow; palpal setulae black. Scutal color varied, with the amount of dark brown differing among specimens, but basically dark brown in center of posterior twothirds and median strip; light brown in anterolateral corners and entire margin of scutum. Scutellum brown, with anterolateral round spots faintly indicated. Pleuron mixture of light and medium brown; basalare dark brown. Legs yellowishbrown, except apex of hind femur slightly and gradually darker. Forefemur with strong rounded flange on apical onehalf. Foretibia longer than in M. laselvae , 0.8 length of forefemur, such that foretibia plus foretarsus longer than forefemur. Combined length of foretarsomeres approximately 0.48 tibial length. Foretarsal claws recurved, with large basal lobe. Mean costal length 0.51 wing length, range 0.50–0.52. Halter yellow. Abdominal tergites black, with silver pollinosity anteriorly. Venter of abdomen gray. Ovipositor medium brown on basal onethird, apically dark brown; tubular, with narrowing on apical onethird, and narrowed area laterally flattened; ventral apex with tuft of numerous long setae, otherwise with scattered, shorter setae, especially dorsally.
Male. Frons orange, punctate; ocellar triangle black. Ocular and genal setae black. Flagellomere 1 and segments 1–2 of arista orange; aristomere 3 dark. Palpus yellow; palpal setulae black, well developed. Scutum mostly dark brown; light brown anteroventrally and along lateral margin. Pleuron mixture of light to dark brown; basalare dark brown. Legs yellowishbrown, except apex of hind femur with small dark spot. Abdominal tergites black, with silver pollinosity anteriorly. Venter of abdomen gray. Basal extremity of cercus gray, apex yellow. Surstyli with relatively long setae.
Host. One male and one female were taken at the nest entrance of a Meliwillea bivea Roubik et al. colony in a tree trunk.
Geographical distribution. Costa Rica.
Derivation of specific epithet. Named for the type locality, the only site where it has so far been collected.
Holotype. ♀, COSTA RICA: San José: Zurquí de Moravia , 10.05°N, 84.02°W, iv.1991, P. Hanson, Malaise trap, 1600 m [ LACM ENT 034065 About LACM ] ( LACM). GoogleMaps
Paratypes. COSTA RICA: San José: Zurquí de Moravia , 10.05°N, 84.02°W, 1♀, iv.1992, 2♂, vii.1992, 1♀, iii–iv.1993, 1♂, iv–v.1993, P. Hanson, Malaise trap, 1600 m ( LACM, MUCR), 1♂, 1♀, 20.vi.1993, B. V. Brown, nest entrance Meliwillea bivea (LACM) GoogleMaps .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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