Helochares (Hydrobaticus) laevis, Short & Girón, 2018
|
publication ID |
https://doi.org/ 10.11646/zootaxa.4407.1.2 |
|
publication LSID |
lsid:zoobank.org:pub:B45E9ABD-CB52-4EE7-91D6-783E8E958AC5 |
|
DOI |
https://doi.org/10.5281/zenodo.3803370 |
|
persistent identifier |
https://treatment.plazi.org/id/7705615A-0D93-4311-A72B-B5024E94B919 |
|
taxon LSID |
lsid:zoobank.org:act:7705615A-0D93-4311-A72B-B5024E94B919 |
|
treatment provided by |
Plazi |
|
scientific name |
Helochares (Hydrobaticus) laevis |
| status |
sp. nov. |
Helochares (Hydrobaticus) laevis View in CoL n. sp.
Figs. 4B View FIGURE 4 , 7J View FIGURE 7 , 10B View FIGURE 10 .
Type material. Holotype (male): “ MEXICO: Chiapas / San Cristobal las Casas / 17-21.vii.1964 / leg. P.J. Spangler ”, “grass chocked stream on edge of town” ( USNM).
Paratypes: (5): MEXICO: Chiapas: 20 km NE of San Cristobal de las Casas on road to Tenejapa, Las Ollas , “bog”, 6.iii.1965, leg. D. E. Breedlove (4 females, CAS, SEMC); same data as holotype (1 female, USNM) .
Differential diagnosis. Body size 6.2–6.8 mm. Clypeus dark yellow to orange with the central third darkened to dark brown. Elytra without any detectable serial punctures or striae ( Fig. 4B View FIGURE 4 ). Abdominal ventrites uniformly dark brown; pubescence dense and evenly distributed, the longest hairs shorter than those on the metaventrite. Aedeagus ( Fig. 7J View FIGURE 7 ) 2.3-times longer than its greatest width; apex of parameres truncate, with outer corners rounded; inner corners of apex of parameres forming an acute angle; lateral outer margins of parameres parallel along basal two thirds, slightly constricted at two thirds, diverging along apical third; maximum width of aedeagus at basal half, clearly narrower than maximum width of aedeagus at apical half; median lobe with apex gradually tapering to an acute point.
This species is extremely similar to H. politus , with the primary difference being in the form of the aedeagus ( Fig. 7J View FIGURE 7 ).
Description. In addition to differential diagnosis: pronotum dark brown to black in central half ( Fig. 4B View FIGURE 4 ). Ground punctation on head and pronotum moderately impressed, slightly less impressed on the elytra.
Distribution. Mexico (Chiapas) ( Fig. 10B View FIGURE 10 ).
Etymology. Laevis (L), after the smooth elytra which lacks any coarse serial punctures or striae.
Biology. One series was collected in a “bog”, while the other was collected in a “grass chocked stream”.
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.