Jeremiodes costaricensis, Hennemann & Conle, 2024

Hennemann, Frank H. & Conle, Oskar V., 2024, Studies on Neotropical Phasmatodea XXVI: Taxonomic review of Cladomorformia tax. n., a lineage of Diapheromerinae stick insects, with the descriptions of seven new genera and 41 new species (Phasmatodea: Occidophasmata: Diapheromerinae), Zootaxa 5444 (1), pp. 1-454 : 85-87

publication ID	https://doi.org/ 10.11646/zootaxa.5444.1.1
publication LSID	lsid:zoobank.org:pub:5DE4A9DD-99F7-4E23-AD50-58DC491BB75E
persistent identifier	https://treatment.plazi.org/id/CD17A45E-34BC-4C9E-A025-40627CB59F59
taxon LSID	lsid:zoobank.org:act:CD17A45E-34BC-4C9E-A025-40627CB59F59
treatment provided by	Plazi
scientific name	Jeremiodes costaricensis
status	sp. nov.

Treatment

Jeremiodes costaricensis sp. n.

urn:lsid:zoobank.org:act:CD17A45E-34BC-4C9E-A025-40627CB59F59

( Figs. 32A–B View FIGURE 32 , 33E, 33H View FIGURE 33 , 34D–F, 34M–O View FIGURE 34 , 84F View FIGURE 84 , 94L View FIGURE 94 )

HT, ♂: Bosque Esquinas , Pen. Osa, Prov. Punta, Costa Rica, 200m, Mar. 1994, J. Quesada, L S 301400_542200 # 2799; Costa Rica MNCR-A CRI001 772807 [ MNCR-A] .

PT, ♂: Est. Sirena, 0–100m, P.N. Corcovado, Prov. Puntarenas, Costa Rica, jul 1992, J.C. Saborio L-S 270500, 508800; Costa Rica MNCR-A CRI000 777920 [ MNCR-A] .

PT, ♂: Est. Sirena, 0–100m, P.N. Corcovado, Prov. Puntarenas, Costa Rica, jul 1992, J.C. Saborio L-S 270500, 508300; Costa Rica MNCR-A CRI000 777922 [ MNCR-A] .

PT, ♀: Costa Rica, Prov. Puntarenas, Osa, Ciudad Pto Cortés, Cuesta del Burro , 680m, 17 AGO 2005, M. Moraga, Libre, L _S_000629_517352 #84018; MNCR-A003964568 MNCR-ACRI Costa Rica [ MNCR-A] .

Diagnosis. Females of this new species most closely resemble the Colombian J. colombianus Conle et al., 2011 and the Peruvian J. peruanus sp. n., but differ from both these species by the larger size, having one very prominent sub-apical tooth on the two outer ventral carinae of the mesofemora and posteroventral carina of the metafemora (two slender spiniform teeth in colombianus and unarmed in peruanus ) as well as the prominent, convex posteromedian swelling of abdominal tergum VI ( Fig. 34D View FIGURE 34 ). From colombianus they may also be distinguished by the more globose head and from peruanus sp. n. by the much more pronounced granules of the thorax and abdomen ( Fig. 33E View FIGURE 33 ). Males can readily be separated from all other known ♂♂ of the genus by the prominent, spiniform dark green to black tubercles of the mesonotum ( Fig. 33H View FIGURE 33 ; smooth or supplied with node-like granules in all other species).

Etymology. Named after the distribution in Costa Rica.

Description. ♀♀ ( Fig. 32A View FIGURE 32 ): The unique ♀ at hand lacks the left front and mid leg, most of the subgenital plate and has the tips of gonapophyses VIII broken off ( Figs. 34D–F View FIGURE 34 ). The left hind leg is regenerated but judging from the size must have been lost in a very early stage of nymphal development, being just slightly shorter than the right hind leg, lacking the sub-apical tooth of the posteroventral carina of the femur and having only four instead of five tarsomeres.

Large (body length excl. subgenital plate 119.0 mm) and very stocky for the genus with a prominently granulose thorax, strongly bulging posterior margin of the mesonotum, a prominent posterior swelling on abdominal tergum VI and a very prominent sub-apical tooth on two outer ventral carinae of mesofemora and posteroventral carina of metafemora. Colour of the dried specimen greyish mid brown, the head and pronotum with ochre tones and the abdomen darker brown and with a reddish tinge (most certainly due to preservation). Granules of the head and thorax olive with black tips. Carinae of the meso- and metafemora marked with green. Basal portion and anteroventral carina of profemora in particular pinkish. Scapus and pedicellus coloured like head, rest of antennae dark grey and gradually becoming dark reddish brown towards the apex.

Head ( Fig. 33E View FIGURE 33 ): Moderately globose, broadest just behind the eyes and with vertex rounded; frons with two shallow transverse indentions and vertex rather irregularly supplied with node-like granules; a few minute granules also on genae. Eyes small, circular in outline, projecting less than hemispherical and their diameter contained more than 3x in length of genae. Antennae reaching to posterior margin of metanotum. Scapus rectangular and almost 2x longer than wide, pedicellus cylindrical and about 3three-fifths the length of scapus. Antennomere III as long as pedicellus, IV much shorter and proceeding ones gradually increasing in length.

Thorax ( Fig. 33E View FIGURE 33 ): Pronotum slightly shorter and much narrower than head, gently narrowed pre-medially and about 1.3x longer than wide. Transverse median sulcus distinct, very weakly curved and expanding over entire width of segment; surface with several node-like granules. Mesothorax 4.6x longer than pronotum, slightly constricted at anterior margin and widened posteriorly; entire surface unevenly supplied with node-like to tuberculiform granules. Posterior margin of mesonotum strongly raised and bulging with the top smooth and glossy. Metanotum narrowed towards the posterior, 1.3x longer than width of anterior margin and complete metathorax with the same granules that are present on mesothorax. Meso- and metanotum both with a very fine medio-longitudinal carina,and metanotum with a fairly prominent, slightly transverse and glossy posteromedian tubercle.

Abdomen: Median segment with lateral margins concave and about 1.2x longer than metanotum; surface unevenly but distinctly granulose. Abdominal terga II–VII minutely granulose but granules becoming increasingly sparse and minute towards VII. Segment II as long as median segment, II–V roughly equal in length, VI–IX notably decreasing in length; II slightly widening towards the posterior, III- VI roughly uniform in width, VII–X narrower than all preceding and almost uniform in width. Tergum VI with a very prominent, roundly convex posterior swelling ( Fig. 34D View FIGURE 34 ). Sterna II–VII minutely but quite densely granulose. Praeopercular organ merely represented by a slightly bulgy posterior margin of sternum VII ( Fig. 34F View FIGURE 34 ). Anal segment rectangular in dorsal aspect, the posterior margin straight with the outer angles obtusely rounded ( Fig. 34E View FIGURE 34 ). Epiproct small, scale-like, rounded and wider than long. Cerci small, conical and slightly protruding beyond apex of epiproct. Gonoplacs moderately enlarged and narrowed towards an acute tip. Basal portion of subgenital plate strongly keeled medio-longitudinally and with a blunt lateral longitudinal bulge ( Fig. 34D View FIGURE 34 ).

Legs: Short and stocky with most carinae distinct and ± lamellate (outer ventral carinae in particular). Two outer ventral carinae of mesofemora slightly deflexed in basal portion and with a very prominent tooth sub-apically; that of the anterior carina triangular, that of the posterior carina bidentate (may be an individual trait although). Metafemora only with a sub-apical tooth on posteroventral carina. Tarsi rather short, basitarsi narrowed towards the apex in dorsal aspect and longer than following three tarsomeres combined; dorsal carina of probasitarsus gently rounded.

♂♂ ( Fig. 32B View FIGURE 32 ): Medium-sized (body length 80.7–87.0 mm) and of typical shape for the genus with a prominently tubercular mesonotum, fairly complex colouration and unarmed legs. General colour ochreous mid brown, the head with faint darker brown longitudinal streaks and the pronotum with dark brown markings. Mesonotum greyish green with the posterior portion sepia, mesopleurae pale red, metapleurae dark brown. Mesosternum with a dark brown marking at anterior marking, greyish green anteriorly and gradually becoming mid green towards the posterior; metasternum green and turning to brown towards the posterior, the posterior portion with whitish maculations. Tubercles of the mesothorax dark green (paratypes) to almost black (holotype). Abdominal tergum IX with a conspicuous white marking at anterolateral angles, followed by a variably shaped blackish marking or streak; sternum VIII with pale grey wash. Tegmina mid brown with the anterior margin broadly white and a washed green streak along radius. Costal region of ale with anterior margin white, the radius marked by a bold washed green longitudinal streak and the portion posterior to the radius brown. Front legs basically dark brown with the entire interior surface of the profemora red. Meso- and metafemora green with the apex brown, the corresponding tibiae mid to dark brown. Antennae dark grey with a slight olive tinge.

Head ( Fig. 33H View FIGURE 33 ): Shape basically as in ♀♀ but somewhat more narrowed towards posterior, the granules less numerous and on frons with two shallow raised areas followed by a somewhat enlarged pair of granules. Eyes much larger, projecting hemispherical and their diameter contained only 1.5x in length of genae. Antennae reaching half way along abdominal segment IV; otherwise as in ♀♀.

Thorax: Pronotum as in ♀♀ but more decidedly narrowed medially with the anterior portion somewhat dilated and the granules smaller and notably less in number. Mesothorax very long, slender and uniform in diameter, just very slightly widened posteriorly, 6.6.x longer than pronotum. Mesonotum with fairly distinct and acute medio-longitudinal carina and unevenly armed with node-like granules and spiniform tubercles of various sizes ( Fig. 33H View FIGURE 33 ); the largest along mid line. Mesosternum obtusely and weakly tectate longitudinally. Meso- and metapleurae and both sterna irregularly granulose, the granule most pronounced and slightly tuberculiform in anterior portion of mesosternum. Tegmina oval in outline, narrowed in basal portion and the central protuberance distinct and obtusely conical. Alae reaching ± half way along abdominal segment V ( Fig. 32B View FIGURE 32 ).

Abdomen: Segments II–VII uniform in diameter, II and III equal in width, IV–VII gradually decreasing in length; III about 4x longer than wide. Terga II–VII very sparsely and minutely granulose; sterna with a fairly distinct longitudinal median keel and sparsely supplied with minute granules. Tergum VIII strongly trapezoidal with posterior margin over 1.5x wider than anterior margin and the lateral portions convex and swollen. IX notably longer than IX and X, strongly constricted medially and with a distinct longitudinal bulge laterally. Anal segment wider than long and almost as broad as posterior margin of VIII; cucullate with the lateral portions roundly convex and swollen and the posterior margin bulging and weakly indented medially; ventrally with a few minute denticles on each side of epiproct. The epiproct small and just weakly protruding over posterior margin of anal segment ( Fig. 34N View FIGURE 34 ). Cerci very large, notably longer than anal segment, compressed dorsoventrally, incurved with the apex strongly swollen, truncated, strongly protruded intero-apical and angled inward ( Figs. 34 View FIGURE 34 M-O). Vomer large, basically triangular and with a single terminal hook ( Fig. 94L View FIGURE 94 ). Phallus elongated and laterally projecting ( Figs. 34N–O View FIGURE 34 ); apex with a ventro-apical impression. Poculum very large, bulgy with the entire surface irregularly rugose and tubercular and slightly projecting beyond tergum IX; posterior margin labiate, bidentate and with an almost semi-circular median excavation ( Fig. 94L View FIGURE 94 ).

Legs: Fairly long and slender and entirely unarmed; profemora about as long as head, pro- and mesothorax combined, metafemora reaching half way along abdominal segment V and metatibiae roughyl reaching apex of cerci. Probasitarsus slightly longer, meso- and metabasitarsus as long as remaining tarsomeres combined.

Remarks: Eggs unknown. Measurements in table 12.