Ectrichodiinae (Forthman & Weirauch, 2017)

Forthman, Michael & Gil-Santana, Hélcio R., 2021, Two new species of Rhiginia Stål, 1859, with taxonomical notes on species in the “ cruciata-group ” of this genus and an updated key to the New World genera of Ectrichodiinae (Heteroptera, Reduviidae), Zootaxa 4952 (2), pp. 201-234 : 231-232

Key to the New World genera of Ectrichodiinae based on Gil-Santana et al. (2013, 2015, 2020)

1 Tarsi two-segmented or tarsus fused with tibia.............................................................. 2

- Tarsi three-segmented................................................................................. 3

2 Antennal insertion shielded laterally by a small sclerite; seven (apparent) antennal segments; scutellum with two mid-lateral projections and an apical blunt tip; tarsi two-segmented; dorsal abdominal gland I present................................................................................................. Ectrichodiella Fracker & Bruner, 1924

- Antennal insertion not shielded laterally by a small sclerite; four antennal segments; scutellum only with two mid-lateral projections; tarsus fused with tibia; dorsal abdominal gland I absent...................... Tribelocodia Weirauch, 2010

3 Antennal insertion shielded laterally by a small process on the antennifers; vertex elevated; ocellar tubercle conical...................................................................................... Jorgcoris Carpintero, 1980

- Antennal insertion not shielded laterally by an antennifers process; vertex not elevated; ocellar tubercle conical or rounded.. ................................................................................................... 4

4 Four antennal segments................................................................................ 5

- Six or more (apparent) antennal segments................................................................. 6

5 Ocelli not raised on an ocellar tubercle; abdominal sternites with heavy punctation............ Schuhella Dougherty, 1995

- Ocelli raised on an ocellar tubercle; abdominal sternites without heavy punctation..................... Zirta Stål, 1859

6 Fore femur with a ventral cleft.......................................................................... 7

- Fore femur without ventral cleft, although it may have a slight carina and/or be armed on ventral surface.............. 10

7 Coloration uniformly black................................................ Wygodzinskyocoris Dougherty, 1995

- Coloration with a combination of dark and light brown....................................................... 8

8 Abdominal sternites heavily punctated........................................... Cryptonannus Dougherty, 1995

- Abdominal sternites lacking heavy punctation.............................................................. 9

9 Head elongate in lateral view, i.e., head length greater than head height................... Sinchocoris Dougherty, 1995

- Head subtriangular in lateral view, i.e., head length and height subequal............... Doblepardocoris Dougherty, 1995

10 Fore femora with a row of large dentiform processes ventrally...................... Borgmeierina Wygodzinsky, 1949

- Fore femora unarmed or at most with a series of minute denticles or stiffened setae ventrally........................ 11

11 Postocular region with a pair of blunt elevations; seven antennal segments; fore and middle femora incrassate, with a ventral carina and a row of setigerous and dentiform tubercles; length 9–9.5 mm ...................... Xarada Carpintero, 1980

- Postocular region without a pair of elevations; seven or eight antennal segments; fore and middle femora incrassate or not incrassated, without a ventral carina and a row of setigerous and dentiform tubercles.............................. 12

12 Seven antennal segments; anterior pronotal lobe with a pair of paramedial carinated lobes; ocellar tubercle conical; prongs of scutellum close basally, divergent distally, spiniform.............................. Travassocoris Wygodzinsky, 1947

- Seven or eight antennal segments; anterior pronotal lobe without a pair of paramedial carinated lobes; ocellar tubercle not conical; prongs of scutellum separated basally, subparallel................................................... 13

13 Robust species of 15 to almost 40 mm in length; fore femora thickened, sometimes strongly so; middle femora less frequently thickened, both with blunt tubercles or sharp and dentiform processes set on areas with short stiff setae; fore and middle trochanters with similar armature; fore and middle tibiae slightly or strongly thickened toward apex, with fossula spongiosa well developed................................................................. Brontostoma Kirkaldy, 1904

- Smaller and/or less robust species; femora slender or slightly thickened; different set of characters................... 14

14 Head longer than wide................................................................................ 15

- Head length as long as or shorter than the width............................................................ 21

15 First visible labial segment elongate, longer than second and third visible segments together; pronotum smooth and shiny... .................................................................................................. 16

- First visible labial segment shorter than or at most subequal to second and third visible segments together; pronotum opaque, typically rugose, seldom smooth and shiny................................................................ 17

16 Abdominal sternites with numerous and large punctations; small species.................................................................................................. Amazopothea Gil-Santana, Oliveira, & Bérenger, 2020

- Abdominal sternites lacking numerous and large punctations; small to large species....... Pothea Amyot & Serville, 1843

17 Second visible labial segment longer than first segment; anterior pronotal lobe with distinct sculpture, posterior pronotal lobe rugose; metasternum with two transverse carinae..................................... Margacoris Carpintero, 1980

- Second visible labial segment subequal in length to first segment; different set of characters........................ 18

18 First visible labial segment shorter than second and third segments together, second segment subequal to first, at most slightly longer or shorter; body red-orange and black, rarely brownish................................................ 19

- First visible labial segment as long as or slightly longer than second and third segments together, second segment distinctly shorter than first; body dark brown, brownish, or blackish, at most with yellowish markings........................ 20

19 Longitudinal sulcus of the anterior pronotal lobe well developed anteriorly, but not reaching transverse sulcus; pronotum often rugose on anterior pronotal lobe opaque or moderately shiny; length 10–26 mm .................... Rhiginia Stål, 1859

- Longitudinal sulcus of the anterior pronotal lobe deep medially, but not reaching anterior or posterior margins of lobe; pronotum shiny, smooth; length 12–15 mm ....................................... Pseudozirta Bérenger & Gil-Santana, 2005

20 First antennal segment approximately half as long as head; median longitudinal sulcus on anterior pronotal lobe obsolete; length 9–14.5 mm ......................................................... Pseudopothea Wygodzinsky, 1951

- First antennal segment about as long as head; median longitudinal sulcus well developed on anterior pronotal lobe and extending onto posterior lobe continuously or shortly interrupted at the level of transverse furrow; length 8–17 mm ................................................................................................. Racelda Signoret, 1863

21 Body not flattened dorsoventrally....................................................................... 22

- Body flattened dorsoventrally.......................................................................... 23

22 With ventrolateral elevations posterior to eyes; ocellar tubercles and ocelli large to very large; legs slender, ventrally without spines or carinae; fossula spongiosa very small, less than 1/5 length of fore and 1/10 length of middle tibiae; length 14–25 mm .......................................................................... Cricetopareis Breddin, 1903

- Without ventrolateral elevations posterior to eyes; ocellar tubercles conical or flattened; fore and middle legs strongly carinated below, femora with setigerous tubercles and dentiform spines; fossula spongiosa on fore and middle tibiae moderately developed, extending between 1/5 to 1/3 length of segment; length 6–13 mm ................................. Daraxa Stål, 1859

23 Longitudinal sulcus of anterior pronotal lobe reduced to a fovea; anteocular region longer than postocular; head elongate; fore and middle femora slightly enlarged, fusiform, ventrally carinated with setigerous tubercles..................................................................................................... Pseudodaraxa Carpintero, 1980

- Longitudinal sulcus of pronotum extending across both lobes; anteocular region much shorter than postocular; head hemispherical, vertical; fore femora enlarged basally, narrowing at apex, curved, thinly carinated ventrally on basal 2/3, with setigerous and teeth-like tubercles; middle and hind femora similar, slender, straight, without carinae............................................................................................. Pseudoracelda Carpintero, 1980