24,035 research outputs found
Experimental investigation of gasoline – Dimethyl Ether dual fuel CAI combustion with internal EGR
No full textThis thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.A new dual fuel Controlled Auto-Ignition (CAI) combustion concept was proposed and researched for lower exhaust emissions and better fuel economy. The concept takes the advantage of the complementary physical and chemical properties of high octane number gasoline and high cetane number Di-Methyl Ether (DME) to organize the combustion process. Homogeneous gasoline/air mixture is utilized as the main combustible charge, which is realised by a low-cost Port Fuel Injection (PFI) system. Pressurised DME is directly injected into cylinder via a commercial Gasoline Direct Injection (GDI) injector. Flexible DME injection strategies are employed to realise the controlled auto ignition of the premixed charge. The engine is operated at Wide Open Throttle (WOT) in the entire operating region in order to minimize the intake pumping loss. Engine load is controlled by varing the amount of internal Exhaust Gas Recirculation (iEGR) which is achieved and adjusted by Positive Valve Overlap (PVO) and/or exhaust back pressure, and exhaust rebreathing method. The premixed mixture can be of either stoichiometric air/fuel ratio or fuel lean mixture and is heated and diluted by recycled exhaust gases. The use of internal EGR is considered as a very effective method to initiate CAI combustion due to its heating effect and moderation of the heat release rate by its dilution effect. In addition, the new combustion concept is compared to conventional SI combustion. The results indicate that the new combustion concept has potential for high efficiency, low emissions, enlargement of the engine operational region and flexible control of CAI combustion
Concrete Crack images for segmentation
No full textThis is a concrete crack dataset for segmentation. It is partially from Ozgenel FÇ. Concrete crack segmentation dataset. Mendeley Data 2019; 1: DOI: 10.17632/jwsn7tfbrp.1. and @article{liu2019deepcrack, title={DeepCrack: A Deep Hierarchical Feature Learning Architecture for Crack Segmentation}, author={Liu, Yahui and Yao, Jian and Lu, Xiaohu and Xie, Renping and Li, Li}, journal={Neurocomputing}, volume={338}, pages={139--153}, year={2019}, doi={10.1016/j.neucom.2019.01.036}}If the dataset helps your research, please cite our paper:@article{xie2022sparse, title={Sparse-sensing and superpixel-based segmentation model for concrete cracks}, author={Xie, Xiongyao and Cai, Jielong and Wang, Haozheng and Wang, Qiang and Xu, Jieying and Zhou, Yingxin and Zhou, Biao}, journal={Computer-Aided Civil and Infrastructure Engineering}, year={2022}, publisher={Wiley Online Library}
Macrobrachium spelaeus Cai & Vidthayanon 2016, new species
No full textMacrobrachium spelaeus, new species (Figs. 1–3) Material examined. Holotype: male, cl 13.7 mm, (NIFI SH 00176), Tham Phra Wangdaeng, Baan Chompu southwest of Thung Salaeng Luang National Park, Pitsanulok Province, lower north Thailand, 100 m. from the cave entrance: 16.8379°N 100.877°E, 28 August 2002, coll. C. Vidthayanon. Paratypes: 1 male, cl 11.7mm (OUMNH. ZC.2016-01-022), 1 female, cl 11.9mm (ZRC 2016.0049), same locality as holotype. 1 National Biodiversity Centre, National Parks Board, Singapore, 1 Cluny Road, Singapore 259569, Republic of Singapore; Email: [email protected] (*corresponding author) Description. Rostrum (Fig. 1A, B) straight, reaching distal end of scaphocerite, rostral formula: 4-5+6-7/2-3. Teeth more widely spaced on anterior than postorbital region. Antennular peduncle about 0.4 times as long as carapace. Carapace smooth, inferior orbital margin moderately produced. Antennal spine sharp (Fig. 1D), situated slightly lower than inferior orbital angle, reaching slightly beyond carapace margin. Hepatic spine smaller, situated behind and substantially below antennal spine. Branchiostegal suture running from base of hepatic spine to carapace margin. 2 Environment Division, Mekong River Commission Secretariat, Fa Ngum Road, Ban Sithan Noua, Vientiane 01000, Lao People Democratic Republic; Email: chavalit@ mrcmekong.org © National University of Singapore ISSN 2345-7600 (electronic) | ISSN 0217-2445 (print) Fourth thoracic sternite (Fig. 1F) without median process. Eighth thoracic sternum (Fig.1G) with narrowly separated anterolateral lobes, without median process. Abdomen smooth (Fig. 3), glabrous, first to third pleurites broadly rounded, fourth and fifth pleurites feebly produced posteriorly, fourth pleurite sub-triangular, fifth pleurite sub-rectangular, sixth abdominal somite 1.5 times as long as fifth, with posteroventral angle feebly produced, subacute. Telson (Fig. 1J) moderate, stout, 3.0 times as long as wide, 1.6 times as long as sixth abdominal segment, with 2 pairs of dorsal spines, ending in a median projection, lateral spines of distal margin slightly larger than dorsal spines, intermediate spines well developed, with long plumose setae. First 3 abdominal sternites (Fig. 1H) with transverse ridge and a median tooth each, with first one very prominent, much more developed than the other two. Second one triangular in form. Third one much smaller, pointed. Inter-uropodal sclerite armed with well-developed preanal carina (Fig. 1I).Ocular stalk and cone reduced, 0.12 times of carapace length, facets present, pigment visible, anterior end only reaching middle of basal segment of antennular peduncle. Stylocerite pointed, reaching 0.8 times of second segment. Antenna with stout basicerite and prominent distoventral tooth. Carpocerite reaching to about 0.35 times of scaphocerite length. Scaphocerite (Fig. 1C) slender, 0.6 times as long as carapace, about 3.0 times as long as wide, with straight outer margin. Epistome (Fig. 1E) bilobed by a shallow triangular depression. Mouth parts typical of the genus. Third maxilliped with robust endopod, ultimate segment reaching to anterior end of antennal peduncle; ultimate segment slightly shorter than penultimate segment; exopod short, with numerous plumose setae distally. First pereiopods (Fig. 2A) very slender, reaching beyond scaphocerite by entire chela and 0.2 carpus length, equal in length, similar in form, carpus 1.8 times as long as chela, chela with fingers slightly shorter than palm. Second pereiopods (Fig. 2B, C) not sexually dimorphic; both cylindrical, similar in form, unequal in length. Both covered with tufts of velvety setae on fingers and distal half of palms. Major one with smooth or with indistinct spinules, subequal to body length, reaching beyond distal end of scaphocerite by both entire carpus and chela; merus as long as palm, both segments distinctly longer than palm but shorter than fingers; capus 0.65 times as long as palm; palm slightly inflated, fingers with no gap when closed, with a row of about 15 small teeth on each side of cutting edge. Third pereiopods (Fig. 1D, E) slender, reaching beyond scaphocerite by entire dactylus, propodus 10 times as long as broad, 3.4 times as long as dactylus; dactylus 4.5 times as long as wide, terminating in an unguis. Fourth pereiopods slender, slightly longer than third pereiopods, similar in form. Fifth pereiopods most slender, longest, reaching beyond scaphocerite by entire dactylus. Endopod of male first pleopod about 0.45 times as long as exopod, weakly broadened distally, slightly curved mesially. Appendix masculina of male second pleopod longer than appendix interna, with spiniform setae on dorsal surface. Appendix interna of male second pleopod slender, reaching to 0.6 length of appendix masculina. Uropodal diaeresis (Fig. 1K) with a movable spine, distinctly shorter than outer angle. Colouration (live). Yellowish pale cephalothorax with pale yellow and brown visceral mass, rostrum translucent, eyes black, abdomen opaque with brownish hue dorsally. Hairs on chelae pale brown, antennas and appendages opaque. Habitat. Macrobrachium spelaeus is known only from shallow (0.3–1 m depth) subterranean streams in the type locality, over 100 m from the cave entrance, at Tham Phra Wang Daeng of the Tham Phra Karst in Klong Chompu area of Thung Salaeng Luang National Park. Etymology. The new species is named spelaeus (L., cavedwelling), after its stygobitic habit. Remarks. Mcrobrachium spelaeus, new species, represents the first stygobitic Macrobrachium species found in Thailand. With the existence of the tufts of velvety setae on the dactylus of second pereiopods, short carpus in second pereiopods, relatively short rostrum which does not exceed the end of the scaphocerite, Macrobrachium spelaeus, new species, should be referred to the Macrobrachium pilimanus species group (cf. Cai et al., 2004). To date, there are 15 species recognised in the Macrobrachium pilimanus group, namely M. pilimanus (De Man, 1879), M. leptodactylus (De Man, 1892), M. hirsutimanus (Tiwari, 1952), M. dienbienphuense Dang & Nguyen, 1972, M. poeti Holthuis, 1984, M. eriocheirum Dai, 1984, M. ahkowi Chong & Khoo, 1987 [= M. johnsoni Chong & Khoo, 1987], M. gua Chong, 1989, M. forcipatum Ng, 1995, M. platycheles Ou & Yeo, 1995, M. pilosum Cai & Dai, 1999, M. amplimanus Cai & Dai, 1999, M. sirindhorn Naiyanetr, 2001, M. kelianense Wowor & Short, 2007, and M. empulipke Wowor, 2010. With its reduced eyes, M. spelaeus could be easily separated by all the other members of the M. pilimanus group except M. poeti. Macrobrachium poeti was described from several caves in Gunung Sewu, Java, Indonesia. Macrobrachium spelaeus could be distinguished from M. poeti (cf. Holthuis, 1984) by having more teeth on the lower margin of the rostrum (2 or 3 vs. 1 in M. poeti); the shorter merus of the second pereiopods (as long as palm vs. distinctly longer than palm in M. poeti); the larger number of teeth on the cutting edges of the fingers (15 vs. several in M. poeti), the slender propodus in third pereiopods (3.4 times as long as dactylus vs.3 times in M. poeti). Compared to epigean species of the group, M. spelaeus morphologically resembles M. dienbienphuense Dang & Nguyen, 1972, a species originally described from northern Vietnam, but also reported from China, Laos, and Thailand (Cai et al., 2004; Hanamura et al., 2011), especially when taking into account of the form of second pereiopods. Besides the eyes, M. spelaeus could be separated from M. dienbienphuense (cf. Dang & Nguyen, 1972; Cai et al. 2004, Hanamura et al. 2011) by the form of rostrum (straight vs. convex); shorter major second pereiopods in male specimens (as long as body length vs. distinctly longer in M. dienbienphuense) less setae/pubescence in second pereiopods (see fig. 3 vs. fig. 3 in Dang & Nguyen 1972); fewer number of teeth on the cutting edges of the fingers (15 vs. 18–32 in M. dienbienphuense). Comparative specimens examined. Macrobrachium dienbienphuense: 10 males, cl 9.0–11.0 mm, 5 ovigerous females, cl 6.7–8.3 mm, eggs 1.3 × 1.0 mm (ZRC 2000.2693), Central Thailand, Lop Buri Province, Chai Badan, coll. Y. Cai, 20 June 1998; 9 males, cl 10.2–11.7 mm, North-east Thailand, Phibun, Mangsahan, Ubon Rachathani Mae Nam Moon, Mangsahan afternoon market, coll. Y. Cai et al., 16 June 1998.Published as part of Cai, Yixiong & Vidthayanon, Chavalit, 2016, Macrobrachium spelaeus, a new species of stygobitic freshwater prawn from Thailand (Decapoda: Palaemonidae), pp. 117-122 in Raffles Bulletin of Zoology 64 on pages 117-121, DOI: 10.5281/zenodo.450200
Arcuatitibia Luo, Lu & Cai
No full textArcuatitibia Luo, Lu & Cai, gen. n. Type species of genus: Arcuatitibia kerzhneri Luo, Lu & Cai, sp. n. Diagnosis. Size large. Head cylindrical, shorter than pronotum (Figs. 1, 2); eyes large, protruded laterally; ocellus small, somewhat widely separated; anteocular portion of head longer than postocular (Fig. 2), transverse constriction situated behind eyes; rostrum robust, second segment longest; first antennal segment thickest and shortest, distinctly shorter than head; second antennal segment longest. Collar developed; pronotum wider than long, anterior pronotal lobe distinctly shorter and narrower than posterior (Fig. 1); anterior pronotal lobe longitudinally depressed at middle; posterior pronotal lobe much wider than anterior, anterior portion widely depressed along middle, along middle depression with two longitudinal carinae (Fig. 1), lateral angles rounded; scutellum unarmed; fore and mid femora obviously thicker than hind femur, fore and mid tibiae obviously bent and with small sponge furrow each. Female abdomen dilated, male abdomen nearly parallel laterally. Distribution: China. Etymology: The generic name alludes to its arcuate tibiae. Feminine. Remarks: The new genus can be easily distinguished from other related genera of Reduviinae by its fore and mid tibiae being obviously curved.Published as part of Luo, Zhaohui, Lu, Zhaozhi & Cai, Wanzhi, 2009, Arcuatitibia kerzhneri, a new genus and species of Reduviinae (Hemiptera: Reduviinae) from China, pp. 64-68 in Zootaxa 2121 on page 65, DOI: 10.5281/zenodo.18811
Longiclavula Yao, Cai & Ren
No full textGenus Longiclavula Yao, Cai & Ren, gen. nov. Type species: Longiclavula calvata Yao, Cai & Ren, sp. nov. Diagnosis: Body moderately sized, elongate, general body plan resembling alydids’, dorsal surface smooth, impunctate. Head width and length subequal, slightly shorter than pronotum, apex surpassing first segment of antenna; antennae 4 segmented, longer than half of body, first segment short and thick, second, third, and fourth segments slender, second segment longest, fourth shorter than third segment; eyes moderately large, round and prominent, distance between two eyes wider than diamete of an eye. Pronotum trapezoidal, slightly transverse, with collar; femur lacking spine; hemelytron macropterous, long and narrow, apical margin rounded, nearly reaching to tip of abdomen, with distinct embolium, corium elongated on costal margin, with only one wavy longitudinal vein; clavus tapering, without carina and vein; membrane with numerous veins. Abdomen oval, all sutures of abdominal straight, third to fifth sterna subequal in width, distinctly wider than other sterna. Distribution: China. Etymology: The name is a combination of the Latin longus (‘long’) and clavula (“clavus”), alludes to its very long clavus and lack of a claval commissure. The gender is feminine. Remarks: This new genus can be placed next to Miracorizus as they are similar in the following characters: antenna long and slender, the first segment shortest, not extending beyond head apex, the second segment longest, fourth segment shorter than third segment; legs without spine; hemelytron macropterous, costal margin of corium elongated, clavus tapering, longer than lateral side of scutellum, without claval commissure. But Longiclavula can be easily distinguished from Mircorizus by dorsal surface smooth (vs. densely punctate), length of body about 4 times of the width (vs. about 3 times), corium with only M and without medial fracture (vs. without M and medial fracture), clavus without veinlike carina and vein (vs. with a veinlike carina and a vein arising at its basal point). Longiclavula is also similar to Monstrocoreus Popov, 1968 in body relatively elongated, clavus tapering, only one vein on corium; but the new genus can be distinguished from the latter by head over 0.5 times as wide as base of pronotum (vs. less than 0.5 times as wide as base of pronotum); antenna relatively shorter, slightly longer than half of body (vs. subequal to body); M crooked (vs. M nearly straightly); third to fifth abdominal sterna subequal in width (vs. third to sixth subequal in width).Published as part of Yao, Yunzhi, Cai, Wanzhi & Ren, Dong, 2006, The first discovery of fossil rhopalids (Heteroptera: Coreoidea) from Middle Jurassic of Inner Mongolia, China, pp. 57-68 in Zootaxa 1269 on pages 63-64, DOI: 10.5281/zenodo.17321
Mirivena Yao, Cai & Ren
No full textMirivena Yao, Cai & Ren, gen. nov. Type species. Mirivena robusta Yao, Cai & Ren, sp. nov. Diagnosis. Body relatively large, elongate-oval, moderately robust; head short, wider than long, anteocular portion longer than postocular; antennae inserted laterally immediately in front of eyes, first segment short, not reaching apex of head; eyes large, prominent, widely separated from anterior margin of pronotum; pronotum more than 2 times as wide as long, without collar; scutellum equilaterally triangular; hemelytron well developed, extending beyond tip of abdomen, clavus large, claval commissure shorter than scutellum length, only two veins on corium, R vein reaching anterior margin of fore wing, cuneus conspicuous, triangular, nearly as long as scutellum; abdomen oval, connexivum visible, second abdominal sternum narrowed, third to eighth sterna subequal in width. Remarks. The classification and phylogenetic study of the living species of Miridae depend on microscopic features like the structure of pretarsus and genitalia. Based on those features, it is difficult to assign this new genus to any subfamily with complete certainty. Mirivena gen. nov. differs from all living genera in its R vein reaching the anterior margin of the fore wing. Among all known fossils of Miridae, the new species is the largest. It is closely related to Miridoides Becker-Migdisova 1963 from the Late Jurassic of Kazakhstan, but differs in the following characters: body length 10.9 mm (vs. only 5.1 mm), head 1.4 times as wide as long (vs. 3 times), eyes widely separated from anterior margin of pronotum (vs. eyes contiguous to anterior margin of pronotum), and corium without CuP, R vein reaching anterior margin of fore wing (vs. corium with CuP, R short, straight, not reaching the anterior margin of the fore wing). Etymology. The generic name is a combination of the Latin mir (“preternatural”) and vena (“vein”).Published as part of Yao, Yunzhi, Cai, Wanzhi & Ren, Dong, 2007, The oldest known fossil plant bug (Hemiptera: Miridae), from Middle Jurassic of Inner Mongolia, China, pp. 37-41 in Zootaxa 1442 on page 38, DOI: 10.5281/zenodo.17604
Hsiaotycoris Lu, Zhao & Cai
No full textHsiaotycoris Lü, Zhao & Cai, gen. nov. Type species. Hsiaotycoris tuberculatus Lü, Zhao & Cai, sp. n. Diagnosis. Medium sized. Head cylindrical with some tuberculate processes, subequal to or slightly longer than pronotum (Figs. 1, 5); first antennal segment with some distinct tuberculate processes (Figs. 2, 6), slightly longer than second segment, second segment subequal to third segment in length, fourth segment shortest; anterior portion of postclypeus prominently produced anteriorly, upper margin nearly straight (Figs. 12, 17); eyes of medium size, protruding laterally; ocelli small, widely separated; anteocular portion of head distinctly shorter than postocular, latter constricted behind eyes and subbasally; first rostral segment extending beyond anterior margin of eyes, second segment longest, longer than first and third segments combined, third segment shortest (Figs. 12, 17). Collar undeveloped; pronotum wider than long; transverse constriction situated behind middle in subapterous form (Figs. 1, 12) and before middle in macropterous form (Figs. 5, 17); anterior pronotal lobe scattered with some tubercles, lateral sides of low longitudinal median depression with symmetric smooth sculptures; lateral pronotal angles tuberculate, posterior margin nearly straight (Fig. 1, 5); scutellum unarmed; legs with some scattered tubercles and spines; fore leg moderately incrassate, with more tubercles and spines than mid and hind legs, inner surface of fore femur and fore tibia with two series of strong spines (Figs. 13, 19). Abdomen dilated laterally in subapterous form (Fig. 1) and nearly parallel laterally in macropterous form (Fig. 5). Distribution. China (Yunnan). Etymology. This genus is named in honor of the late Prof. T. Y. Hsiao for his great contribution to the study of Heteroptera. Masculine. Remarks. The general body plan of the female of the new genus is similar to that of Asiacoris Tomokuni & Cai, but the anterior portion of the postclypeus of the latter is distinctly bent upwards, and the ventral surfaces of the fore femur and fore tibia lack strong spines. The new genus is also allied to Tapirocoris Miller, Yangicoris Cai, Henricohahnia Breddin, Karenocoris Miller, and Malaiseana Miller. These genera can be distinguished with the following key.Published as part of Lü, Zhaozhi, Zhao, Ping & Cai, Wanzhi, 2006, Hsiaotycoris tuberculatus, a new genus and species of Harpactorinae (Heteroptera: Reduviidae) from China, pp. 33-41 in Zootaxa 1286 on page 34, DOI: 10.5281/zenodo.17350
Cilicydnus Yao, Cai & Ren
No full textGenus <i>Cilicydnus</i> Yao, Cai & Ren, gen. nov. <p> <b>Type species.</b> <i>Cilicydnus robustispinus</i> Yao, Cai & Ren, sp. nov.</p> <p> <b>Diagnosis:</b> Body length ranging 5.9–6.1 mm, oval, dorsum of head, pronotum, scutellum, and corium with long dense setae. Head semicircular, wider than long, without primary setae on the margins of the head, shorter than pronotum; rostrum arising from apex of head, extending beyond posterior margin of pronotum, 4­ segmented, first and second segments thickest, third nearly as long as fourth; eyes large, round, touching anterior margin of pronotum; antenna 4­segmented, shorter than head and pronotum combined, first segment shortest, second longest, third nearly as long as fourth, fourth fusiform, thickest. Pronotum trapezoidal, strongly transverse, anterior angles bulging forward, without collar; scutellum transverse, about 2 times as wide as long, slightly shorter than pronotum at midline; femora stout, distinctly thicker than corresponding tibiae, tibiae with dense stout spines, tarsus 3­segmented, tarsomeres subequal in thickness, first shortest, third longest; mid and hind coxae narrowly separated, coxa and trochanter rounded triangular, fore and mid femora subequal to corresponding tibiae in length, hind leg longer than mid leg, hind femur distinctly shorter than hind tibia; hemelytron macropterous, apical margin rounded, extending beyond tip of abdomen, corium with deep median fracture, clavus large, claval commissure shorter than scutellum. Abdomen wider than pronotum; ovipositor long, not projecting beyond last paratergites, extending through last two abdominal segments.</p> <p> <b>Distribution.</b> China.</p> <p> <b>Etymology:</b> The generic name is a combination of the Latin <i>cili</i> (“cilia”) and <i>Cydnus</i> (the type genus of Cydnidae).</p> <p> <b>Remarks:</b> The new genus can be assigned to the family Cydnidae by the following combination of features: head semicircular, more widened; anterior angles of pronotum bulging forward, tibiae with dense and stout spines. This genus can be easily placed in Amnestinae because of the distinct claval commissure. The new genus is distinguished from the extant amnestine genus <i>Amnestus</i> Dallas, in the dorsum of head, pronotum, scutellum, and corium with dense and long setae (vs. with a few setae), anterior margin of head without primary setae (vs. with primary setae).</p> <p> Among all fossils of Cydnidae, the new genus is most closely related to <i>Latiscutella</i> Pinto & Ornellas, 1974, but the new genus differs from the latter in ratio of first segment to second of antenna about 4:9 (vs. 5: 14), dorsum of head, pronotum, scutellum, and corium with long dense setae (vs. without setae), pronotum about 3 times as wide as long (vs. about 2 times as wide as long), and scutellum very transverse, about 2 times as wide as long (vs. slightly wider than long).</p>Published as part of <i>Yao, Yunzhi, Cai, Wanzhi & Ren, Dong, 2007, The first fossil Cydnidae (Hemiptera: Pentatomoidea) from the Late Mesozoic of China, pp. 59-68 in Zootaxa 1388</i> on pages 60-61, DOI: <a href="http://zenodo.org/record/175165">10.5281/zenodo.175165</a>
Towards a True Author Entry System for CAI
No full textCAI course authors have been faced with the disc tint problem of having to learn an instructional coding language before they can get their courses into the computer. A system has been devised so that an author may easily write his course in English on course planning forms and then a pre-processor will generate the coding which will be input for the machine assembler
Orienicydnus hongi Yao, Cai & Ren, sp. nov.
No full textOrienicydnus hongi Yao, Cai & Ren, sp. nov. (Figs. 6–7) Description: Ψ, Body 1.8 times as long as wide. Head 1.5 times as wide as long; eyes prominent, interocular space 6 times as wide as diameter of eyes in dorsal view. Pronotum 2.7 times as wide as long, anterior margin very concave, lateral margins convex, posterior margin nearly straight, anterior angles rounded, posterior angles rounded; all femora stout, more than 2 times as thick as corresponding tibiae, spines on tibia nearly as long as diameter of tibia, fore legs shorter than mid, fore tarsus 0.4 times as long as corresponding tibia, third tarsomere almost 4 times as long as first, mid tarsus 0.46 times as long as corresponding tibia, second tarsomere 2.5 times as long as first; hind tibia almost 1.6 times as long as femur, tarsi similar to fore and mid tarsi, third 2 times as long as first. Measurements (in mm): Body length 6.15; maximal width of abdomen 3.47; length head 1.06, width 1.59; length antennal segments I–IV: 0.38, 0.44,?,?; length rostrum I–IV: 0.76, 0.32, 0.35, 0.53; length pronotum 1.09, width 2.88; length fore leg: femur 1.12, tibia 1.0 (ɗ), tarsomeres I–III: 0.06, 0.18, 0.18; length mid leg: femur 1.29, tibia 1.26, tarsomeres I–III: 0.09, 0.23, 0.23; length hind leg: femur 1.47, tibia 2.35 (ɗ), tarsomeres I–III: 0.12, 0.24, 0.24. Material: Holotype, Ψ, CNUHENN 2006230 (dorsoventrally compressed). Locality and horizon: Huangbanjigou, Chaomidian Village, Beipiao City, Liaoning Province, China. Late Jurassic to Early Cretaceous, Yixian Formation. Etymology: This species is named in honor of Prof. Youchong Hong of the Beijing Museum of Natural History, Beijing, for his outstanding contributions to the study of the fossil insects of China.Published as part of Yao, Yunzhi, Cai, Wanzhi & Ren, Dong, 2007, The first fossil Cydnidae (Hemiptera: Pentatomoidea) from the Late Mesozoic of China, pp. 59-68 in Zootaxa 1388 on pages 64-65, DOI: 10.5281/zenodo.17516
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