Cryptophyllium phami gen. et, 2021

Cumming, Royce T., Bank, Sarah, Bresseel, Joachim, Constant, Je ́ ro ̂ me, Tirant, Stephane Le, Dong, Zhiwei, Sonet, Gontran & Bradler, Sven, 2021, Cryptophyllium, the hidden leaf insects - descriptions of a new leaf insect genus and thirteen species from the former celebicum species group (Phasmatodea, Phylliidae), ZooKeys 1018, pp. 1-179 : 1

publication ID

https://dx.doi.org/10.3897/zookeys.1018.61033

publication LSID

lsid:zoobank.org:pub:7E9360A5-A359-437A-91C0-04C74B1FE9D6

persistent identifier

https://treatment.plazi.org/id/D4022B1A-0983-4D93-BB32-36FD96881F59

taxon LSID

lsid:zoobank.org:act:D4022B1A-0983-4D93-BB32-36FD96881F59

treatment provided by

ZooKeys by Pensoft

scientific name

Cryptophyllium phami gen. et
status

sp. nov.

Cryptophyllium phami gen. et sp. nov. Figures 5C View Figure 5 , 6F View Figure 6 , 9G View Figure 9 , 54 View Figure 54 , 55 View Figure 55 , 56 View Figure 56 , 57 View Figure 57 , 58 View Figure 58

Material examined.

Holotype ♂: "Coll. I.R.Sc.N.B., Vietnam, Cat Tien N.P., 11°26'N 107°26'E, 6-16.vii.2012, Leg. J. Constant and J. Bresseel, I.G.: 32.161". Deposited in RBINS.

Paratypes (5 ♀♀, 4 ♂♂): • 1 ♀: same data as HT (RBINS) • 1 ♂, 3♀♀: same data as HT, "Ex Breeding: Bruno Kneubühler” (2♀♀: RBINS♂; 1, • 1♀: VNMN) • 1 ♂: same data as HT, "Ex Breeding Tim Bollens" [damaged; vomer dissected] (RBINS) • 1 ♀: same data as HT, "Ex Breeding Tim Bollens" (RBINS) • 1 ♂: "Vietnam, Dong Nai Province, Cat Tien N.P., bred by Bruno Kneubühler (Switzerland), circa 2012" (Coll OC) • 1 ♂: "Vietnam, Binh Thuan Province, Dong Tien, IV.2019", molecular sample SLT03 in our analysis (Coll SLT).

Remarks.

This species was found in July 2012 by Joachim Bresseel (RBINS) and Jérôme Constant (RBINS) in Cat Tien N.P., Vietnam, during a GTI research expedition. A female was located due to the tell-tale sign of feeding damage on the guava tree on which she was found (Fig. 54 View Figure 54 ) at crocodile lake between the ranger station and the lake shore. This female was kept alive long enough to lay fertilized eggs which were shared with expert phylliid breeder Bruno Kneubühler (Switzerland) who brought this species into culture (Fig. 55 View Figure 55 ). Additionally, one male was collected while light trapping near the park headquarters.

Differentiation.

Females are most morphologically similar to Cryptophyllium bollensi sp. nov., Cryptophyllium chrisangi comb. nov., and Cryptophyllium nuichuaense sp. nov. based on the general abdominal shape, the broad obtuse exterior profemoral lobe, and the mesopleura shape and spination. Cryptophyllium phami sp. nov. can immediately be differentiated from these species by the length of the alae which are short, only reaching to the anterior margin of abdominal segment III vs. the other species which have moderate length alae, reaching at least onto abdominal segment IV.

Males are morphologically most similar to Cryptophyllium westwoodii comb. nov., Cryptophyllium chrisangi comb. nov., Cryptophyllium bollensi sp. nov., and Cryptophyllium khmer sp. nov. based on the tegminal length, femoral lobe shapes and spination, and the features of the thorax. The first two species can be differentiated by their abdominal shape which is thinly elliptical, with a maximum width only 30-34% the abdominal length vs. Cryptophyllium phami sp. nov. and the second two species which have an abdominal shape that is broadly elliptical or broadly spade-shaped with a maximum width ca. 38-45% the abdominal length. Due to their very similar morphology and intraspecific variation, we have not yet found a reliable morphological feature to differentiate Cryptophyllium phami sp. nov., Cryptophyllium bollensi sp. nov., and Cryptophyllium khmer sp. nov. males. Thankfully females can help differentiate the species as noted above.

Distribution.

At present only known from two southern Vietnamese provinces, Dong Nai and Binh Thuan Provinces.

Description.

Female. Coloration. Coloration description is based upon both living wild caught (Fig. 54B View Figure 54 ) and captive reared individuals (Fig. 55A View Figure 55 ) as their coloration appears to be rather similar. Overall coloration is pale green, with many areas of the body highlighted with cream or very pale green. These areas tend to be the margins on the lobes of the legs, some striping on the lobes of the legs, the pronotum, abdominal margins, and the venation in the tegmina (Fig. 55A View Figure 55 ).

Morphology. Head. Head capsule about as long as wide, vertex relatively smooth with the only notable feature being the posteromedial tubercle which is finely pointed (Fig. 56E View Figure 56 ). Frontal convexity broad and blunt, with a slightly granular surface. Compound eyes slightly protruding from the head capsule, and are not particularly large, taking up slightly <⅓ of the head capsule lateral margins (Fig. 56E View Figure 56 ). Ocelli absent. Antennal fields slightly wider than the width of the first antennomere. Antennae. Antennae consist of nine segments, with the terminal segment about the same length as the preceding two and a half segments’ lengths combined (Fig. 56C View Figure 56 ). Antennomeres I-VII sparsely marked with small transparent setae, the terminal two antennomeres are covered in stout, brown setae. Thorax. Pronotum with gently concave anterior margin and slightly convex lateral margins, which converge to a straight posterior margin that is half the width of the anterior margin (Fig. 56E View Figure 56 ). The pronotum surface is smooth, with only a prominent pit in the center, and slight furrows anterior and lateral to the pit (Fig. 56E View Figure 56 ). The pronotum has moderately formed anterior and lateral rims and a weakly formed posterior rim, all of which are relatively smooth (Fig. 56E View Figure 56 ). Prosternum and the anterior of the mesosternum are covered with numerous nodes, but the remainder of the mesosternum and the metasternum are relatively smooth. Prescutum longer than wide, lateral rims with nine to eleven small to medium tubercles, not ranging dramatically in size giving the margin a rough textured appearance (Fig. 56E View Figure 56 ). Prescutum anterior rim prominent but not strongly protruding, rim surface is granular, lacking a large sagittal spine (Fig. 56F View Figure 56 ). Prescutum surface heavily granular, with all about the same size. Mesopleura begin ca. ⅓ of the way through the prescutum length and evenly diverge; lateral margin with seven or eight small tubercles with ca. ½ of those slightly larger than the rest, with the smaller ones interspersed throughout (Fig. 56E View Figure 56 ). Face of the mesopleura smooth, with two notable divots, one on the anterior margin and one near the middle (Fig. 56F View Figure 56 ). Wings. Tegmina long, reaching ½ through abdominal segment VII. Tegmina venation; the subcosta (Sc) is the first vein in the forewing, running parallel with the margin for the first half, and then bending and running towards the margin. The radius (R) spans the central portion of the forewing with two subparallel branched veins; the first radius (R1) branches ca. ¼ of the way through the wing length and terminates slightly proximal to the midline, the radial sector (Rs) branches ca. ⅖ of the way through the wing length and terminates near the distal ⅓ of the wing length. There is a weak continuation of the radius following the prominent Rs branching which continues on as a short and thin R-M crossvein that connects the two veins. The media (M) is simply bifurcate with both the media anterior (MA) and media posterior (MP) terminating near to the posterior ¼ of the wing. The cubitus (Cu) is also bifurcate, branching near the posterior ⅕ of the wing into the cubitus anterior (CuA) and cubitus posterior (CuP) which both terminate at or very near the wing posterior apex. The first anal vein (1A) is simple and fuses with the cubitus early on, at the length about midway between the splitting of the R1 and Rs. Alae reduced, with their apex only just passing the anterior margin of abdominal segment III. Abdomen. Abdominal segments II through the anterior half of IV uniformly diverging. The posterior half of segment IV through segment VII are subparallel, gradually converging, and segment VII is ending in a slightly rounded lobe. Segments VIII-X are notably narrower than the previous segments, and have converging margins to the broad rounded apex (Fig. 56G View Figure 56 ). Genitalia. Subgenital plate starts at the anterior margin of segment VIII, is moderately broad, and extends ½ onto segment X with straight margins ending in a fine point (Fig. 56H View Figure 56 ). Gonapophyses VIII are long and moderately broad, reaching the apex of abdominal segment X; gonapophyses IX are shorter and narrower, hidden below (Fig. 56H View Figure 56 ). Cerci flat, not strongly cupped, with a granular surface and few detectable setae (Fig. 56H View Figure 56 ). Legs. Profemoral exterior lobe broad, rounded, and obtusely angled, smoothly arcing from end to end, ca. ⅓ again wider than the width of the interior lobe (Fig. 56D View Figure 56 ). Edge of the profemoral exterior lobe granular, with a few slightly larger than the rest, but none very large to resemble teeth (Fig. 56D View Figure 56 ). Profemoral interior lobe ca. 2 × as wide as the greatest width of the profemoral shaft, obtusely angled, and marked with five teeth arranged in a two-one-two pattern with looping gaps between them (Fig. 56D View Figure 56 ). Mesofemoral exterior lobe arcs from end to end but is slightly bent in the center, weighted towards the distal ½, and marked with three or four small serrate teeth distributed on the distal half only. Interior lobe is about the same width as the mesofemoral shaft, and the exterior lobe is slightly wider. Mesofemoral interior lobe arcs smoothly end to end with 6-8 small serrate teeth only on the distal half of the arc which is slightly wider than the proximal half of the arc. Metafemoral interior lobe arcs end to end, with the distal half slightly wider than the proximal half and marked with 7-10 serrate teeth on the distal half of the lobe. Metafemoral exterior lobe is thin and smooth, hugging the metafemoral shaft and lacks dentation. Protibiae lacking an exterior lobe. Protibiae interior lobe spans the entire length of the protibiae and is slightly> 2 × the width of the protibiae shaft itself. The lobe is roundly triangular with the widest portion on the distal half. Mesotibiae and metatibiae lacking exterior and interior lobes.

Measurements of paratype females [mm] (wild caught). Length of body (including cerci and head, excluding antennae) 76.7, length/width of head 7.9/6.1, antennae 3.8, pronotum 5.1, mesonotum 6.8, length of tegmina 45.8, length of alae 17.9, greatest width of abdomen 30.0, profemora 17.6, mesofemora 13.8, metafemora 17.1, protibiae 11.6, mesotibiae 9.8, metatibiae 12.7.

Measurements of paratype females [mm] (ex culture) 3

. Length of body (including cerci and head, excluding antennae) 79.4-90.3, length/width of head 8.2-9.5/6.4-7.4, antennae 3.8-4.3, pronotum 5.1-5.8, mesonotum 7.0-7.5, length of tegmina 45.3-53.8, length of alae 17.2-22.9, greatest width of abdomen 28.7-36.3, profemora 17.8-20.7, mesofemora 14.7-15.6, metafemora 16.6-19.5, protibiae 11.5-12.0, mesotibiae 10.3-11.0, metatibiae 13.4-14.8.

Male. Coloration. Coloration based upon live bred specimens in captivity (Fig. 55C View Figure 55 ). Overall coloration pale green throughout with variable patches of tan to reddish coloration (Fig. 55C View Figure 55 ). These tan to reddish areas are primarily around the margins of the lobes of the legs, the margins of the thorax, the tips of the antennae, and the margins of the abdomen. In darker colored specimens the mesofemoral lobes can also have coloration, not just along the margins. Abdominal segment V has a pair of slightly transparent eye spots.

Morphology. Head. Head capsule about as long as wide, with a vertex that is relatively smooth with only sparse granulation throughout. Frontal convexity stout with sparse thin setae. The posteromedial tubercle is not broad but is distinctly raised from the head capsule. Compound eyes large and bulbous, taking up slightly < ½ head capsule lateral margins (Fig. 57D View Figure 57 ). There are three well-developed ocelli located between and slightly posterior to the compound eyes. Antennae. Antennae (including the scapus and pedicellus) consists of 24 segments, all segments except the scapus and pedicellus and terminal three segments are covered in dense setae that are as long as or longer than the antennae segment is wide. The terminal three segments are covered in dense short setae and the scapus and pedicellus are nearly completely bare. Thorax. Pronotum with anterior margin distinctly concave and lateral margins that are slightly convex and converging to a straight posterior margin that is ca. ½ the width of the anterior rim. Anterior and lateral margins of the pronotum have moderately formed rims and the posterior margin lacks a rim. Face of the pronotum is marked by a distinct furrow and pit in the center and a relatively smooth surface with weak granulation. Prosternum surface is weakly granular with small nodes of even size and spacing. Mesosternum surface marked with slightly more prominent nodes, with the largest along the sagittal plane and more strongly on the anterior margin, posterior margin with less prominent and smaller nodes. Prescutum slightly longer than wide, with lateral margins that are only slightly converging to the posterior (Fig. 57D View Figure 57 ). Lateral rims with nine or ten node-like tubercles, giving the lateral margins a rough textured appearance. Prescutum surface with minimal nodes throughout, with those along the sagittal plane slightly larger than the others. Prescutum anterior rim prominent but not strongly raised, with a granular surface and lacking a prominent sagittal tubercle. Mesopleura begin on the anterior prescutum margin but are narrow throughout most of their length, only diverging gently for the posterior ⅔. Lateral margin with nine or ten minor tubercles throughout the length except for the posterior ⅓ which is relatively smooth. Face of the mesopleura mostly smooth, with slight wrinkling throughout. Wings. Tegmina moderate length, extending ⅓ of the way through abdominal segment III. Tegmina wing venation: the subcosta (Sc) is the first vein, is simple, and terminates the earliest ca. ⅓ of the way through the overall tegmina length. The radius (R) spans the entire length of the tegmina with the first radius (R1) branching just proximal to the midline and terminating just distal to the midline, followed by the branching and termination of the second radius (R2) near the distal ⅓ of the wing, and then the radial sector runs to the wing apex. The media (M) also spans the entire length of the tegmina with the first media posterior (MP1) branching off slightly> ⅓ of the way through the wing length, and then the second media posterior (MP2) branches just distal to the midline, and the media anterior (MA) runs to the wing apex. The cubitus (Cu) runs along the edge of the wing as the two media posterior veins fuse with it and as the cubitus reaches the apex it fades. The first anal (1A) vein terminates upon reaching the cubitus ca. ⅓ of the way through the wing length. Alae well-developed in an oval fan configuration, long, reaching to the middle or posterior of abdominal segments IX. Alae wing venation: the costa (C) is present along the entire foremargin giving stability to the wing. The subcosta (Sc) is long, spanning ca. ⅔ of the wing length and is mostly fused with the radius in the beginning but terminates when it meets the costa. The radius (R) spans the entire wing and branches slightly proximal to the midline into the first radius (R1) and radial sector (Rs) which run gently diverging for most of their length and then converge at the apex of the wing where they terminate near each other but not touching. The media (M) branches early, ca. ⅙ of the way through the wing into the media anterior (MA) and the media posterior (MP) which run parallel with each other throughout the wing until the distal ⅕ of the wing where the media posterior fuses with the media anterior which then run fused together to the wing apex where they terminate near the radial sector. The cubitus (Cu) runs unbranched and terminates at the wing apex. Of the anterior anal veins, the first anterior anal (1AA) fuses with the cubitus near the point where the media branches into the media anterior and media posterior and then the first anterior anal branches from the cubitus ⅔ of the way through the wing length where it uniformly diverges from the cubitus until it terminates at the wing margin. The anterior anal veins two-seven (2AA-7AA) have a common origin and run unbranched in a folding fan pattern of relatively uniform spacing to the wing margin. The posterior anal veins (1PA-6PA) share a common origin separate from the anterior anal veins and run unbranched to the wing margin with slightly thinner spacing than the anterior anal veins. Abdomen. Lateral margins of abdominal segment II are parallel, III through the anterior ⅔ of segment IV gradually diverging, the remainder of IV and segment V are parallel-sided, segment VI starts parallel-sided but almost immediately starts to converge and the remaining segments converge uniformly to the rounded apex of the abdomen. Genitalia. Poculum broad and ends in a rounded apex that slightly passes the anterior margin of segment X (Fig. 57G View Figure 57 ). Cerci long and slender, extending from under the anal abdominal segment, nearly flat, not strongly cupped, covered in a granulose surface and numerous short setae (Fig. 57F View Figure 57 ). Vomer broad and stout with straight sides evenly converging and ending in a thick apical hook with a smaller second hook adjacent to it (Fig. 5C View Figure 5 ). Legs. Profemoral exterior lobe about the same width as the interior lobe, ca. 2½× the greatest width of the profemoral shaft, roundly arcing end to end in a broad obtuse angle that is not distinctly bent, with the proximal margin slightly granulose, and the distal margin with four or five small serrate teeth (Fig. 57C View Figure 57 ). Profemoral interior lobe roundly triangular and marked with five sharp teeth arranged in a two-one-two pattern with looping gaps between them (Fig. 57C View Figure 57 ). Mesofemoral exterior lobe arcs end to end but is slightly wider on the distal ⅓ which is marked with four or five serrate teeth, and the proximal half that is rather thin. Mesofemoral interior lobe is about the same width as the exterior, is broader on the distal end and is marked with seven or eight small serrate teeth. Metafemoral exterior lobe lacks dentation and has a straight margin along the metafemoral shaft. Metafemoral interior lobe smoothly arcs end to end with eight or nine small serrate teeth on the distal ⅔, which is slightly wider than the proximal ⅓. Protibiae lacking exterior lobe, interior lobe reaching end to end in a smooth triangle which is slightly weighted to the distal ½ and at its widest is ca. 2½× as wide as the protibial shaft (Fig. 57C View Figure 57 ). Meso- and metatibiae simple, lacking lobes completely.

Measurements of holotype male [mm]. Length of body (including cerci and head, excluding antennae) 58.7, length/width of head 3.8/3.5, antennae 38.2, pronotum 2.9, mesonotum 3.8, length of tegmina 17.3, length of alae 42.9, greatest width of abdomen 13.4, profemora 12.8, mesofemora 10.6, metafemora 13.0, protibiae 10.1, mesotibiae 7.6, metatibiae 10.0.

Measurements of paratype male [mm] (ex culture). 4

Length of body (including cerci and head, excluding antennae) 54.3, length/width of head 4.0/3.1, antennae 36.1, pronotum 2.7, mesonotum 4.3, length of tegmina 15.5, length of alae 41.1, greatest width of abdomen 13.7, profemora 11.6, mesofemora 10.1, metafemora 12.2, protibiae 8.05, mesotibiae 7.4, metatibiae 8.9.

Eggs. (Fig. 58 View Figure 58 ). The lateral surfaces are flat but with the posterior half slightly wider than the anterior half. The center of the dorsal surface is slightly convex, which gives the margin a slight undulating appearance when viewed from the lateral aspect as the middle is thinner than either end of the egg. When viewed from the lateral aspect; the ventral margin has the posterior slightly protruding more than the anterior, adding to the overall undulating shape of the egg. All surfaces have numerous small to medium sized pits throughout, the lateral surface has around 20 pits arranged in no particular order. The surfaces are also covered with short moss-like pinnae interspersed throughout the capsules with those along the margins slightly longer than the other surfaces. The dorsal surface is marked with six slightly irregular medium sized pits on each half and short moss-like pinnae around the micropylar plate. The micropylar plate is long, ca. 6/7 of the overall dorsal surface length and the shape is nearly symmetrical with the anterior and posterior thin and the area around the micropylar cup the widest point. Micropylar cup of moderate size and placed slightly posterior to the micropylar plate midline. Operculum slightly ovular, with the outer margin with a distinct row of moss-like pinnae surrounding the operculum and four or five medium pits surrounding the dorsal and lateral margins. The operculum is roundly raised with a height slightly> ½ operculum width, this rounded raised cap is marked with a sagittal raised row of pinnae similar in length to those along the capsule margins. The overall color is tan to light brown, with the moss-like pinnae sometimes slightly lighter in color.

Measurements including the extended pinnae [mm]. Length (including operculum): 5.1; maximum width of capsule when viewed from lateral aspect 3.2-3.3; length of micropylar plate 2.9-3.2

Newly hatched nymphs. (Fig. 9G View Figure 9 ). The general color throughout the body is dark brown with slightly lighter brown on the legs. The basitarsi are yellow and remaining tarsal segments are dark brown. All tibiae lack exterior lobes, and all have smoothly arcing interior lobes which have several tan to brown stripes throughout their length. All femoral lobes are similar in width and have distinct serration on their distal halves. The interior profemoral lobe lacks a white spot, but the exterior lobe has a narrow white crescent on the proximal ⅓ with an additional small white patch at the proximal most margin. The meso- and metafemoral interior lobes have two white patches, one on the proximal most edge, and a larger white patch ⅓ of the way through the length. The meso- and metafemoral exterior lobes also have the large white patch on the proximal ⅓, but lack a smaller white patch on the proximal most margin. The distal ends of the meso- and metafemora also have minimal white edges. The abdomen is mostly brown, but abdominal segments II and III have distinct green patches on their lateral surfaces (the centerline of the abdomen is uniform brown throughout). The terminal three abdominal segments also have a little bit of green on their margins. The widest point of the abdomen is abdominal segment IV.

Etymology.

Patronym. This species is dedicated to Pham Hong Thai (VNMN), a good friend and colleague who co-organized the GTI entomological expeditions to Vietnam with the RBINS team since 2010.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Phasmida

Family

Phylliidae

Genus

Cryptophyllium