Cryptotympana atrata (Fabricius, 1775)

Hou, Zehai, Li, Qinglong & Wei, Cong, 2014, Morphology and identification of the final instar nymphs of three cicadas (Hemiptera, Cicadidae) in Guanzhong Plain, China based on comparative morphometrics, ZooKeys 425, pp. 33-50 : 36

Taxon classification Animalia Hemiptera Cicadidae

Cryptotympana atrata (Fabricius, 1775) Figs 2-5

Tettigonia atrata Fabricius, 1775: 681

Cicada atrata (Fabricius): Goeze 1778: 149

Tettigonia pustulata Fabricius, 1787: 266

Cicada nigra Olivier, 1790: 750

Fidicina bubo Walker, 1850: 82

Fidicina atrata (Fabricius): Walker 1850: 89

Cryptotympana atrata (Fabricius): Stål 1861: 613

Cryptotympana sinensis Distant, 1887: 415

Cryptotympana dubia Haupt, 1917: 229

Cryptotympana coreanus Kato, 1925: 13

Cryptotympana santoshonis Matsumura, 1927: 49

Cryptotympana wenchewensis Ouchi, 1938: 82

Cryptotypmana pustulata castanea Liu, 1940: 82

Cryptotympana pustulata fukienensis Liu, 1940: 82

Measurements

(mm or degree). Male (n = 10): BL 26.8 (23.5-31.5), PCL 5.2 (4.7-5.5), PCW 5.2 (4.9-5.7), CL 3.1 (2.9-3.3), HW 11.7 (10.9-12.1), PL 8.3 (7.7-8.7), PW 14.3 (13.6-15.2), PML 16.5 (15.5-17.3), WL 12.6 (11.9-13.1), FL 6.2 (5.9-6.5), TL 6.6 (6.1-7.1), FA 71.4 (69.5-73.2).

Female (n = 10): BL: 26.3 (23.3-29.7), PCL 5.2 (4.9-5.4), PCW 5.2 (5.0-5.3), CL 3.0 (2.8-3.2), HW 11.4 (10.5-12.1), PL 8.1 (7.3-8.7), PW 14.2 (13.6-15.1), PML 16.2 (15.2-17.0), WL 12.5 (11.5-13.1), FL 6.2 (5.7-6.5), TL 6.5 (6.0-7.0), FA 71.6 (69.4-73.4).

Description.

Body (Fig. 2A, B) dark brown, curved in lateral view, with sparse setae mainly on venter.

Head (Fig. 2B). Somewhat triangular in dorsal view; crown including white compound eyes about four times wider than long and about the same width as anterior margin of pronotum. Antenna brown, filiform. Postclypeus prominently swollen, covered with dense brown pile. Rostrum reaching to posterior coxae.

Thorax (Fig. 2A, B). Pronotum broad, paramedian and lateral fissures distinct, pronotal collar undeveloped, posterior margin distinctively concave medially in dorsal view. Mesonotum slightly wider than pronotum, with two small scutal depressions on disc. Metanotum very small. Fore wing bud developed, reaching to middle of 3rd abdominal segment laterally; hind wing bud slightly developed.

Leg (Figs 5A, B, 6A, D). Generally dark brown. Fore femur with femoral formula 2-1-7: posterior tooth long and sharp, accessory tooth robust and sharp, intermediate tooth with projection in one of its sides; femoral comb usually with seven teeth, the first tooth about as large as the second tooth. Fore tibia arched, flattened laterally; apical tooth long; point of blade of tibia large and long, tooth-like, separated from apical tooth of blade by a strong incision. Apex of tibia with five spines in both mid and hind legs. Pretarsi of all legs well developed into a pair of claws of unequal sizes.

Abdomen (Fig. 4 A–C). Size varying depends on the development of the nymph. In female, 8th and 9th sternites with two sharp posterior marginal protrusions. In male, 9th sternite almost entirely concealed by 10th sternite, four protrutions present on surface: a large triangular protrusion near lateral margins, respectively, and a pair of very small rounded protrusions on posterior margin; 10th sternite smooth.

Variations of femoral comb.

Ten percent (2/20) of the individuals investigated with femoral comb with six teeth, instead of seven teeth.