Amnestus henryi, M, Cristina Mayorga & P, Luis Cervantes, 2009

M, Cristina Mayorga & P, Luis Cervantes, 2009, Two new species of Amnestus from Guatemala, with new records for some other Guatemalan burrower bugs (Hemiptera: Heteroptera: Cydnidae), Zootaxa 2311, pp. 19-37: 22-25

publication ID

http://doi.org/ 10.5281/zenodo.191888

persistent identifier

http://treatment.plazi.org/id/03C787E7-7527-527C-FF1D-F345FDF4FE8B

treatment provided by

Plazi

scientific name

Amnestus henryi
status

sp. nov.

Amnestus henryi  sp. nov.

( Figs. 7–12)

Diagnosis: This species is distinguished by these characteristics: the fore tibia flattened with four robust spines on external margin and one on its apex, ventrally with a small spine on middle area; posterior femur with a spine near to apex on internal margin. This species is very similar to A. bergrothi Distant  , but in A. henryi  the parameres are elongated and have one side slightly straight ( Fig. 12View FIGURES 8 – 12), whereas in A. bergrothi  the parameres are not elongated and one side is rounded.

Head. Antennal segments III and IV, pronotum, prosternal carina, abdominal venter and scutellum pale brown; antennal segments I, II, and V, rostrum, clavus, corium, and legs pale yellow, posterior margin of pronotum dark brown ( Fig. 7). Posterior part of head with disperse punctures; tylus with four robust pegs and with transverse rugae, not longer than jugum; antenna with five segments, second very small; rostrum longer than base of metasternum. Thorax. Pronotum with anterior margin concave and anterior half area elevated and with disperse punctures, transverse impression strongly marked; anterolateral margins entire, no carinated; posterior margin wide and convex. Propleura shiny and smooth; prosternal carina with anterior part elevated ( Fig. 10View FIGURES 8 – 12); mesopleura even; evaporatorium extended, reaching posterior and lateral margins of pleura; metapleura with evaporatorium extended to posterior and lateral margins of pleura, with peritreme elongated and slightly curved apically; posterior margin toothed with a series of setigerous punctures ( Fig. 11View FIGURES 8 – 12). Legs. Fore tibia flattened with four robust spines on external margin and one on its apex, ventrally with a small spine on middle area ( Fig. 8View FIGURES 8 – 12) Fore femur with a bifid spine on its ventral area; posterior femur with a spine closed to apex with a simple spine near to apex, on internal margin ( Fig. 9View FIGURES 8 – 12). Scutellum. Triangular, with evenly distributed punctures on disc. Hemelytra. Slightly punctured surface, with basal margin entire; clavus with two rows of punctures through its first half of its length; membrane hyaline, longer than apex of abdomen; membrane hyaline. Abdomen. Shiny, ventrally convex, covered with fine hairs.

Male genitalia. Parameres elongated with middle region swallowed and slightly curved apically ( Fig. 12View FIGURES 8 – 12).

Male measurements. Body length 3.3 ± 0.2; head length 0.45 ± 0.05; width across eyes 0.77 ± 0.03; interocular distance 0.43 ± 0.03; interocellar distance 0.17 ± 0.02; antennal segments: I 0.20 ± 0, II 0.05 ± 0, III 0.30 ± 0, IV 0.37 ± 0.04, V 0.42 ± 0.03; rostral segments: I 0.25 ± 0, II 0.35 ± 0, III 0.30 ± 0, IV 0.25 ± 0; pronotum length 1.1 ± 0.1; width across anterior margin 0.75 ± 0.05; width across humeral angles 1.74 ± 0.1; scutellum: length 0.80 ± 0, width 0.82 ± 0.03; length fore femur 0.57 ± 0.07; length fore tibia 0.72 ± 0.07; fore tarsi: I 0.10 ± 0, II 0.05 ± 0, III 0.15 ± 0; length posterior femur 0.97 ± 0.1; length posterior tibia 1.0 ± 0.1; posterior tarsi: I 0.10 ± 0, II 0.05 ± 0, III 0.15 ± 0.

Female measurements. Body length 3.6 ± 0.1; head length 0.48 ± 0.02; width across eyes 0.75 ± 0; interocular distance 0.45 ± 0; interocellar distance 0.23 ± 0.02; antennal segments: I 0.20 ± 0, II 0.05 ± 0, III 0.35 ± 0, IV 0.35 ± 0, V 0.41 ± 0.05; rostral segments: I 0.30 ± 0, II 0.35 ± 0, III 0.40 ± 0, IV 0.27 ± 0.03; pronotum length 1.1 ± 0.1; width across anterior margin 0.77 ± 0.03; width across humeral angles 1.76 ± 0.1; scutellum: length 0.81 ± 0.1, width 0.93 ± 0.07; length fore femur 0.56 ± 0.04; length fore tibia 0.75 ± 0; fore tarsi: I 0.10 ± 0, II 0.05 ± 0, III 0.15 ± 0; length posterior femur 0.95 ± 0.05; length posterior tibia 1.0 ± 0.1; posterior tarsi: I 0.10 ± 0, II 0.05 ± 0, III 0.15 ± 0.

Material Examined. HOLOTYPE: Male. Guatemala, Alta Verapaz, Lanquin, Cueva Lanquin, 28 -VIII- 1969. ( NMNH)

PARATYPES: Guatemala, Alta Verapaz, Lanquin, Cueva Lanquin, 28 -VIII-1969, 1 male and 5 females ( CNIN, NMNH).

Etymology. Dedicated to Dr. Thomas Henry from the Smithsonian Institution in Washington, D.C., who lent us the specimens of this species.

NMNH

Smithsonian Institution, National Museum of Natural History

CNIN

Coleccion Nacional de Insectos, Universidad Nacional Autonoma de Mexico

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Cydnidae

Genus

Amnestus