Camarochilus gilli, Weirauch & Forero & Schuh, 2020

Weirauch, Christiane, Forero, Dimitri & Schuh, Randall T., 2020, Taxonomic revision of Camarochilus Harris (Hemiptera: Pachynomidae), American Museum Novitates 2020 (3959), pp. 1-32 : 18-24

Camarochilus gilli , n. sp.

Figures 1 , 3 , 5–7 , table 1

HOLOTYPE: PERÚ: Madre de Dios: Los Amigos Biol. Sta., 12.56922°S 70.1°W, 268 m, 23 Dec 2010, C. Weirauch, 1♂ ( UCR _ ENT 00044348 ) ( UCR).

DIAGNOSIS (figs. 1, 3, 5, 6): Recognized by the small body size, large eyes, brown, castaneous, and pale yellow coloration with faint veins, and symmetrical pygophore with right and left protuberances of similar size and with similar setation. Similar in coloration to C. americanus and C. confusus , but much smaller and with larger, more globose eyes. Pygophore most similar to those in C. globosus , C. medius , and C. robustus , n. sp., in being symmetrical, but distinguished by size and coloration.

DESCRIPTION: Male: Total length 6.8 mm, ratio total length to corium width ~3.1, macropterous, hemelytron reaching apex of abdomen. COLORATION: Dorsum castaneous, with small pale yellow mark at base of membrane, membrane veins slightly to distinctly lighter, dorsal laterotergites brown with triangular pale yellow marks; head castaneous with anteocular area lighter than posterior, first labial segment light castaneous, with remaining segments reddish pale yellow, antenna castaneous, with scape somewhat lighter than remaining segments, legs pale yellow to light brown, with femora distally and two or three longitudinal stripes dorsally, tibiae, and tarsi slightly darker, pleura castaneous, abdominal mediosternites brown, ventral laterotergites 2–6 with small pale yellow patches. SURFACE AND VESTITURE: As in generic description. STRUCTURE: Head ~1.4× as long as wide, eyes in dorsal view large, strongly semiglobular, ratio head width to synthlipsis ~3.9, globular in lateral view, dorsal eye margin surpassing dorsal head surface. Antenna as in generic description, proximal pseudosegment of pedicel ~2.4× as long as scape. Labium as in generic description. Thorax as in generic description, anterior pronotal lobe ~6.5× longer than posterior lobe, posterior lobe narrow, coarsely punctate; scutellum with acute tip. Wings as in generic description with two clearly delimited cells in membrane. Legs as in generic description with ratio forefemur height to length ~0.35 (0.33–0.37). Abdomen as in generic description. Genitalia with pygophore symmetrical, protuberances laterally rounded and dorsally flattened, right and left of similar size, spinelike setae on right and left of similar size, right and left with less than 10 conical spinelike setae; parameres slender, right slightly larger than left, rounded sickle-shaped with proximal area slightly shorter than distal, proximal area with sparse, slender, and short setae, distal area flattened into blade, broader on right than on left paramere, tapering to apex.

Female: As in generic description, submacropterous, total length 6.6–7.2 mm, ratio total length to corium width ~2.8–3.4, ratio forefemur height to length ~0.36. Genitalia: as in generic description.

ETYMOLOGY: Named for Bruce D. Gill, who has collected and made available to us from his personal collection (BDGC) the single largest assemblage of Camarochilus specimens.

DISTRIBUTION: Known from lowland Amazonian rainforest in Peru, Colombia, and Venezuela. This species was collected at the same locality as C. americanus in Venezuela. The two species are clearly separated by size and other diagnostic features.

DISCUSSION: This is one of the smallest species of Camarochilus and stands out by its large eyes and relatively stout forefemur. Both female paratypes are submacropterous. Additional specimens would need to be examined to test if this is a species diagnostic feature. The holotype was nondestructively DNA-extracted and the sequences were incorporated into a phylogenetic analysis of Heteroptera ( Weirauch et al., 2019).

PARATYPES: COLOMBIA: Amazonas: Leticia, Comunidad indigena Monifue Amena , km 9.8 via Leticia-Tarapacá , 4.14166°S 69.92326°W, 70 m, May 2002, Mora et al., MPUJ_ENT 0046846, 1♀ ( MPUJ) . Monilla Amena. Bosque alto, 4.20316°S 69.93591°W, 60 m, 03 May 2002, Salinas, 1♀ ( UCR _ ENT 00021723 ) ( MPUJ) . VENEZUELA: Bolivar: Cedeño : 15 km E of Caicara, 7.65799°N 66.03281°W, 38 m, 12 Jun 1996, B.D. Gill, Light Trap, 2♂ ( UCR _ ENT 00040760 , UCR_ENT 00040761), 8♀ ( UCR _ ENT 00040758 , UCR_ENT 00040759, UCR_ENT 00040737, UCR_ENT 00040746–UCR_ENT 00040750) ( BDGC) .

PBIUSI TL CC SL PPL PDL PL APLL PPLL ScL FH FL HW Syn APLW PPLW ScW CW AW americanus UCR _ENT 7.64 1.27 0.50 1.09 1.07 1.27 1.07 0.20 1.17 0.78 2.20 1.03 0.34 1.65 2.16 1.30 2.39 2.63

00078396

male (n=3) UCR_ENT 7.87 1.59 0.59 1.06 1.23 1.34 1.15 0.22 1.18 0.84 2.20 1.09 0.33 1.77 2.08 1.22 2.34 2.54

00078397

UCR_ENT 8.77 1.92 0.55 1.26 1.24 1.45 1.21 0.22 1.18 0.78 2.48 1.11 0.38 1.89 2.37 1.43 2.64 2.96

00021720

female (n=11) AMNH_ENT 8.53 1.57 0.52 1.19 0.99 1.53 1.33 0.20 1.24 0.91 2.51 1.08 0.40 1.84 2.44 1.54 2.62 3.01

00029430

UCR_ENT 8.62 1.65 0.54 1.23 1.20 1.57 1.27 0.27 1.22 0.92 2.71 - 0.33 1.81 2.45 1.56 2.62 3.15

00026329

UCR_ENT 8.12 1.51 0.51 1.01 1.08 1.37 1.14 0.23 1.10 0.83 2.42 1.07 0.35 1.88 2.24 1.43 2.71 2.58

00078395

UCR_ENT 8.08 1.68 0.49 - - 1.35 1.17 0.18 1.10 0.85 2.35 1.08 0.35 1.76 2.24 1.30 2.42 2.92

00039071

UCR_ENT 8.78 1.76 0.60 1.27 1.20 1.47 1.25 0.22 1.28 0.92 2.55 1.10 0.36 1.88 2.42 1.44 2.69 3.15

00026330

UCR_ENT 9.33 2.25 0.59 1.10 1.35 1.58 1.35 0.22 1.20 1.04 2.80 1.20 0.40 2.08 2.51 1.46 2.70 3.06

00038502

UCR_ENT 8.36 1.87 0.51 1.27 1.05 1.46 1.27 0.20 1.22 0.94 2.61 1.15 0.38 1.85 2.34 1.39 2.61 3.33

00016194

AMNH_ENT 9.24 2.16 0.58 1.39 1.18 1.60 1.40 0.22 1.16 1.02 2.78 1.19 0.40 1.99 2.48 1.41 2.74 3.33

00029427

UCR_ENT 8.57 2.32 0.58 1.28 1.30 1.77 1.54 0.22 1.55 1.07 3.15 1.25 0.44 2.26 2.83 1.72 3.27 3.57

00027098

UCR_ENT 9.59 1.73 0.63 1.55 1.32 1.64 1.43 0.23 1.39 0.91 2.87 1.19 0.36 2.25 2.74 1.70 2.91 3.36

00040740

UCR_ENT 8.63 1.68 0.53 1.31 1.27 1.49 1.35 0.16 1.25 0.90 2.53 1.07 0.37 2.10 2.43 1.49 2.69 3.24

00040739

PBIUSI TL CC SL PPL PDL PL APLL PPLL ScL FH FL HW Syn APLW PPLW ScW CW AW confusus male (n=1) UCR_ENT 9.32 1.86 0.64 1.34 1.25 1.57 1.30 0.28 1.24 0.99 2.55 1.18 0.37 2.01 2.56 1.60 2.79 2.99

00026327

female (n=2) UCR_ENT 9.45 1.97 0.58 1.42 1.24 1.65 1.38 0.27 1.32 1.02 2.72 1.18 0.36 2.18 2.71 1.65 2.93 3.36 00046696

UCR_ENT 9.50 1.53 0.49 1.27 1.26 1.46 1.29 0.17 1.24 0.96 2.53 1.13 0.37 1.98 2.44 1.53 2.68 3.04 00027099

fasciatus male (n=1) UCR_ENT 7.01 1.53 0.51 1.38 1.44 1.48 1.26 0.22 1.20 0.86 2.61 1.19 0.36 1.94 2.54 1.46 2.70 2.88

00021722

gilli male (n=3) UCR_ENT 6.84 1.52 0.49 1.20 1.07 1.26 1.08 0.19 0.98 0.76 2.22 1.11 0.28 1.59 1.96 1.14 2.23 2.54

00044348

UCR_ENT 7.19 1.56 0.39 1.04 0.91 1.19 0.95 0.25 0.99 0.72 1.94 1.01 0.37 1.54 1.93 1.14 2.07 2.15

00040761

UCR_ENT 7.09 1.49 0.41 1.02 0.87 1.19 0.97 0.22 1.02 0.69 2.07 1.02 0.37 1.52 1.93 1.23 1.99 2.23

00040760

female (n=3) UCR_ENT 6.66 1.58 0.48 1.18 - 1.27 1.09 0.17 0.93 0.86 2.36 1.15 0.31 1.67 2.01 1.12 2.37 2.76 00021723

UCR_ENT 7.21 1.39 0.46 1.03 0.95 1.20 1.01 0.20 1.02 0.76 2.11 1.06 0.37 1.58 2.02 1.25 2.15 2.54 00040758

DF-Colombia 6.61 1.50 0.43 1.17 1.07 1.21 1.03 0.17 0.95 0.76 2.09 1.07 0.37 1.51 1.85 1.08 2.30 2.65

globosus male (n=4) UCR_ENT 7.22 1.35 0.46 1.21 1.10 1.20 0.99 0.21 1.06 0.68 2.18 1.07 0.25 1.66 2.24 1.19 2.46 2.31

00026328

PBIUSI TL CC SL PPL PDL PL APLL PPLL ScL FH FL HW Syn APLW PPLW ScW CW AW

UCR_ENT 7.37 1.44 0.37 0.88 0.88 1.16 0.94 0.24 0.96 0.69 1.96 1.03 0.24 1.48 1.93 1.14 2.39 - 00048873

UCR_ENT 7.34 1.36 0.45 1.12 0.95 1.18 0.97 0.22 1.05 0.70 2.14 1.03 0.25 1.56 2.04 1.18 2.53 2.03 00021721

DF-Colombia 7.25 1.18 0.44 1.19 0.97 1.13 0.90 1.14 1.58 1.07 0.25 1.42 1.99 1.24 2.27

female (n=1) DF-Colombia 7.70 1.32 0.43 1.12 0.80 1.24 0.97 0.27 1.22 0.57 1.89 1.07 0.25 1.65 2.23 1.39 2.51 2.77

harrisi male (n=1) UCR_ENT 7.91 1.36 0.49 0.98 1.18 1.30 1.06 0.24 1.07 0.82 2.22 1.03 0.29 1.72 2.28 1.33 2.39 2.67

00026326

medius male (n=1) UCR_ENT 7.54 1.53 0.51 1.02 1.08 1.30 1.14 0.15 1.09 0.82 2.26 0.96 0.35 1.78 2.07 1.72 2.21 2.63

00046695

female (n=1) UCR_ENT 7.18 1.66 0.54 1.07 1.10 1.31 1.11 0.19 0.96 0.77 2.15 1.02 0.36 1.63 1.97 1.15 2.08 2.76

00046694

picturatus male (n=1) UCR_ENT 8.39 1.70 0.60 0.97 - 1.39 1.18 0.24 1.18 0.77 2.65 1.08 0.32 1.73 2.23 1.27 2.56 2.70

00078394

female (n=1) UCR_ENT 8.11 1.81 0.63 1.11 1.13 1.57 1.27 0.27 1.09 0.96 2.45 1.12 0.25 1.86 2.25 1.30 2.92 2.94

00040763

robustus male (n=1) UCR_ENT 9.86 1.85 0.57 1.58 1.47 1.61 1.29 0.32 1.32 0.88 2.84 1.23 0.31 2.02 2.72 1.55 3.23 3.27

00026325

AW 3.58 3.36 2.26 Camarochilus globosus , n. sp. Figures 1 , 3 , 5–7 , table 1

CW 3.26 3.14 2.17 HOLOTYPE: BOLIVIA: El Beni: Vaca Diez Co.: 2 km NW

ScW 1.67 1.55 1.25 Tumichucua, 11.14617°S 66.16517°W, 142 m, 12 Aug 1990, P.

PPLW 2.75 2.63 2.04 Parrillo DIAGNOSIS, 1♂ (UCR (figs _ENT. 1, 3, 00021721 5, 6): Recognized) (FMNH by). the small body size, large eyes, brown coloration with contrasting veins with

APLW 2.11 1.92 1.48 third membranal vein typically visible, and symmetrical pygophore with right and left protuberances of similar size and seta-

Syn 0.34 0.25 0.25 tion. This species does not closely resemble any of its congeners.

HW 1.23 1.23 1.05 DESCRIPTION: Male: Total length 7.2–7.3 mm, ratio total length to corium width ~2.9–3.1, macropterous, hemelytron

FL 2.82 2.83 1.97 surpassing apex of abdomen. COLORATION: Dorsum brown

FH

0.80 0.88 0.62 with corium and membrane lighter brown, with pale yellow mark at base of membrane and pale yellow lines on membrane

ScL 1.49 1.18 1.05 tracing corium margin and veins, dorsal laterotergites brown with triangular pale yellow marks; head brown with anteocular

PPLL 0.29 0.32 0.24 area lighter than posterior, labium and antenna light brown, with first labial segment darker in some specimens, legs pale

APLL 1.25 1.23 0.82 yellow to light brown, with femora darker in distal half, pleura brown to castaneous, abdominal mediosternites brown to cas-

PL 1.54 1.55 1.10 taneous, ventral laterotergites 2–6 with large pale yellow patches. SURFACE AND VESTITURE: As in generic descrip-

PDL 1.43 1.42 1.04 tion. STRUCTURE: Head ~1.4× as long as wide, eyes in dorsal

PPL 1.50 1.65 1.14 view large, strongly semiglobular, ratio head width to synthlipsis ~4.0–4.3, globular in lateral view, dorsal eye margin sur-

SL 0.62 0.64 0.43 passing dorsal head surface. Antenna as in generic description, proximal pseudosegment of pedicel ~2.5× as long as scape.

CC 1.87 1.80 1.20 Labium as in generic description. Thorax as in generic descrip-

TL

10.41 9.81 8.25 tion posterior, anterior lobe pronotal narrow, coarsely lobe ~5.4 punctate × longer; scutellum than posterior with knoblobe, shaped tip. Wings as in generic description with three cells in

00026331 00040762 PBIUSI

UCR UCR MPUJ ENT

_ ENT _ ENT _ 0046847 height

Genitalia membrane to with length. Legs pygophore as ~ 0.30 in generic. Abdomen symmetrical description as

,

in protuberances generic with ratio description forefemur laterally

.

continued 2) =

n

) 1 = rounded spinelike and setae dorsally on right flattened and left, right of similar and left size of, right similar and size left,

n

1

((

female TABLE tenuis female with slender less, right than slightly 10 slightly larger elongate than left spinelike, sickle shaped setae; with parameres proximal area shorter than distal, proximal area with sparse, slender, and short setae, distal area narrow, slowly tapering to apex.

Female: As in generic description, macropterous, total length ~ 7.7 mm, ratio total length to corium width ~3.1, ratio forefemur height to length ~0.30. Genitalia: as in generic description.

ETYMOLOGY: Named for the large eyes, after Latin globosus , meaning “spherical, globular.”

DISTRIBUTION: Known from Bolivia, Colombia, and Perú. The localities in Bolivia and Colombia are both in Amazonian rainforest lowland, whereas the exact localities of the two remaining examined specimens are unknown.

PARATYPES: COLOMBIA: Amazonas : Amacayacu, 3.81482°S 70.24712°W, 79 m, Feb 1989, M. Kelsey, 1♂ (IAvH) , 1♀ ( ICN), MPUJ_ENT 0046845, 1♂ ( MPUJ) . PERÚ: unknown locality and collector: 20 Mar 1961, 1♂ ( UCR _ ENT 00026328 ) ( USNM) . UNKNOWN locality including country, date, and collector: Beaz? (62 57), 1♂ ( UCR _ ENT 00048873 ) ( BMNH) .

Figures

FIGURE 1. Dorsal habitus of Camarochilus spp. Multiple male and female specimens are documented for C. americanus Harris to visualize intraspecific variation; one male and one female specimen (where available) are illustrated for other species. Scale bars = 2 mm.

FIGURE 3. Lateral habitus of Camarochilus spp. Scale bars = 2 mm.

FIGURE 5. Male and female genitalia of Camarochilus spp.: A–C, male abdomen and pygophore, ventral view; D–G, pygophore in situ, caudal (D–F) or dorsal (G) view; H–J, dissected pygophore, dorsal view. A, C. americanus (UCR_ENT 00021720); B, C. harrisi, n. sp. (UCR_ENT 00026326); C, C. picturatus, n. sp. (UCR_ENT 00078394); D, C. gilli, (UCR_ENT 00044348); E, C. picturatus (UCR_ENT 00078394), F, C. robustus, n. sp. (UCR_ENT 00026325); G, C. americanus (UCR_ENT 00021720); H, C. harrisi (UCR_ENT 00027097); I, C. globosus, n. sp. UCR_ENT 00021721); J, C. medius, n. sp., UCR_ENT 00046695. Abbreviations: ao, anterior opening of pygophore; br, sclerotized bridge between anterior and posterior opening of pygophore; gap8, 9, gonapophyses 8 and 9 (= valvula 1 and 2); gcx8, 9, gonocoxa 8 and 9 (valvifer 1 and 2); gpl, gonoplac (= styloid, valvula 3); lpa, left paramere; pg, pygophore; pgpl, left protuberance on pygophore; pgpr, right protuberance on pygophore; po, posterior opening of pygophore (hidden beneath proctiger); pt9, paratergite 9; pt, proctiger; s3–8, mediosternites 3–8; sc, scape; rpa, right paramere; t8–10, mediotergites 8 to 10; tr3–9, trichobothria on abdominal segments 3–9.

FIGURE 6. Pygophore of Camarochilus spp. in dorsal view, illustrating species-diagnostic differences in pygophore symmetry, size, shape, and degree of asymmetry of pygophore protuberances, and ornamentation as well as paramere shape for all species with known males. Abbreviations: lpa, left paramere; pgpl, left protuberance on pygophore; pgpr, right protuberance on pygophore; pt, proctiger; rpa, right paramere.

FIGURE 7. Distribution records of Camarochilus spp. examined. Some specimens were not mapped due to ambiguous localities. Camarochilus harrisi not mapped.