Telmatometropsis, Mondragón-F. & Morales & Moreira, 2021

Mondragon-F., Silvia P., Morales, Irina & Moreira, Felipe F. F., 2021, Telmatometropsis fredyi gen. nov., sp. nov.: a new water strider from the Colombian Pacific region (Insecta, Hemiptera, Gerridae), ZooKeys 1043, pp. 87-102 : 87

publication ID

https://dx.doi.org/10.3897/zookeys.1043.58548

publication LSID

lsid:zoobank.org:pub:0286F2B8-0E1E-4DC6-B8B0-71652BF1A39D

persistent identifier

https://treatment.plazi.org/id/3C030D62-5C05-466A-AD9A-1FA9E5AA241A

taxon LSID

lsid:zoobank.org:act:3C030D62-5C05-466A-AD9A-1FA9E5AA241A

treatment provided by

ZooKeys by Pensoft

scientific name

Telmatometropsis
status

gen. nov.

Telmatometropsis gen. nov. Figs 1 View Figure 1 , 2 View Figure 2 , 3 View Figure 3 , 4 View Figure 4 , 5 View Figure 5 , 6 View Figure 6 , 7 View Figure 7 , 8 View Figure 8

Type species.

Telmatometropsis fredyi Mondragón-F., Morales & Moreira sp. nov., by present designation and monotypy.

Diagnosis.

The new genus is similar to Telmatometroides (Fig. 9 View Figure 9 ), sharing with it the long ocular setae, the median and lateral longitudinal black stripes on the mesonotum, male abdominal tergum VIII with a central notch on the posterior margin (stronger on T. rozeboomi ), mid tarsomere I with a few bristles at the base, the hind femur with five dorsal trichobothria, the male abdominal laterotergites with patches of light setae, and the occupation of estuarine brackish waters. Telmatometropsis gen. nov. differs from Telmatometroides and all other genera of Neotropical Trepobatinae by the modified fore tarsomere II of the male, which is strongly curved in lateral view, flattened laterally, and apically bifid, with a shorter and a longer portion. The relative proportions of the antennomeres are also unique to the new genus, with article III clearly longer than article I, more than twice as long as article II, but shorter than article IV. Further comparison with other genera of Neotropical Trepobatinae is given in Table 1 View Table 1 and in an updated key to Neotropical Trepobatinae genera provided below.

Description.

Measurements. Male body length 2.90-3.21, width (across suture between meso- and metanotum) 1.07-1.21; female body length 3.30-3.91, width 1.44-1.52. Color. Ground color of body pale yellow with extensive black and silvery markings dorsally, legs largely pale yellow (Fig. 1A View Figure 1 ). Structural characteristics . Eyes elongate, with a pair of long ocular setae (Fig. 1B View Figure 1 ). Head with four pairs of trichobothria (Fig. 1C View Figure 1 ). Antenna shorter than body length; antennomere I thickest, curved laterally at base, longer than antennomere II; antennomere II shortest, thicker than antennomeres III and IV; antennomere III longer than antennomere I; antennomere IV longest (Fig. 1A, B View Figure 1 ). Labium long, extending to mesosternum. Pronotum short, trapezoid (Fig. 1C View Figure 1 ). Mesonotum about three times as long as pronotum, posterior margin slightly concave (Fig. 1A, B View Figure 1 ). Fore femur subequal in length to fore tibia, slightly curved at the base in dorsal view; fore tibia with apicolateral row of short, distinctive setae (Fig. 3A View Figure 3 ); fore tarsus covered with short yellow setae; fore tarsomere I about one third the length of fore tarsomere II; male fore tarsomere II strongly curved in lateral view, flattened laterally, apically bifid with a shorter and a longer portion; claws directed mesally (Fig. 3A-E View Figure 3 ). Mid femur about two-thirds the length of mid tibia; mid tibia less than twice the length of mid tarsus, about as long as medial length of body from anterior margin of pronotum to apex of abdomen, occasionally almost as long as body; mid tarsus shorter than mid femur, article I subequal to article II or a little longer. Hind femur longer than mid femur; hind tibia about two-thirds the length of hind femur, densely covered with setae; hind tarsus about half the length of hind tibia, article I longer than article II.

Etymology.

The generic name refers to its resemblance to the genus Telmatometroides .

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Gerridae