Figure 1:
(A) Typewritten note by N. A. Cobb and filed with the type specimen of Chambersiella rodens Cobb, 1920 pointing out that the specimen had two uteri. (B) Photomicrograph of a female of Chambersiella sp. from entry number 11034, slide G-1671, from the USDANC, collected by J. Saunders via Gerald Thorne or Mae Noffsinger from the beetle gallery of Scolytus mutistriatus Marsham, 1802 showing a didephic ovary. (C) Photomicrograph of a female of Chambersiella rodens Cobb, 1920 collected from a seed cone of Japanese cedar, Cryptomeria japonica (L. f.) D. Don.
Table 1:
Morphometric of females of Chambersiella rodens Cobb, 1920, C. inserrai Cid del Prado et al., 2021 C. bakeri Sanwal, 1957, C. galapagoensis Cid del Prado, 2012 and C. jejuensis Mwamula et al., 2025 from the original descriptions, additional measurements of C. bakeri by Holovachov, and original measurements of C. rodens by Eisenback and Vieira.
| Character | C. rodens (Cobb, 1920) | C. rodens (this study) | C. inserrai (Cid del Prado et al., 2021) | C. bakeri (Sanwal, 1957) | C. bakeri (Holovachov et al., 2003) | C. galapagoensis (Cid del Prado et al., 2021) | C. jejuensis (Mwamula et al., 2025) |
|---|---|---|---|---|---|---|---|
| n | 1 | 5 | 5 | – | 10 | 19 | 16 |
| L | (670) | 905–1,354 (1,077) | 1,000–1,200 (1,100) | 1,100–1,300 (1,200) | 1,001–1,200 (1,100) | 800–1,200 (1,000) | 1,040–1,306 (1,163) |
| a | (27.0) | 19.6–24.0 (21.4) | 24.6–28.8 (26.9) | – | 17.6–23.5 (20.7) | 19.3–35 (25.0) | 23.6–30.3 (26.9) |
| b | (5.0) | 4.1–5.8 (4.6) | 4.5–5.1 (4.9) | 4.4–5.3 (4.9) | 4.4–5.3 (4.9) | 4.9–6.8 (5.7) | 4.9–5.9 (5.4) |
| c | (15.6) | 7.2–10.7 (9.0) | 8.9–14.5 (10.3) | 8.0–9.5 (8.8 | 8.0–9.5 (8.9) | 8.1–10.8 (9.6) | 7.0–7.9 (7.4) |
| c′ | (2.1) | 3.7–5.4 (4.6) | 3.3–5.8 (5.0) | 4.1–6.3 (5.2) | 4.1–6.3 (5.1) | 3.7–6.3 (4.7) | 5.7–7.2 (6.3) |
| V% | (58) | 42.0–53.3 (51.1) | 47.3–53.9 (49.9) | 48.8–52.3 (50.0) | 48.8–52.3 (50.2) | 39–50 (47) | 46.8–49.3 (48.0) |
| Esophagus l. | (135.3) | 218.5––262.0 (235.9) | 215–247 (228.0) | 224–248 (236) | 224–248 (238.0) | 141–207 (179) | 207.0–227.0 (217.2) |
| Corpus | – | 130.9––136.3 (135) | 134–143 (139.4) | 120–138 (129) | 120–138 (131) | 112–145 (125) | 123.5–140.0 (131.4) |
| Excretory pore | – | 163.2––202.0 (178.7) | 155–185 (16(6.5)) | 171–190 (180) | 171–190 (178) | 73–161 (133) | 148.0–183.0 (164.9 |
| Tail length | (42.9) | 102.0––142.0 (120.4) | 116–127 (121.3) | 121–144 (132) | 121–144 (131) | 81–121 (105) | 146.0–177.0 (156.4) |
| BDA | (20.8) | 25.0––28.8 (27.0) | 21–27 (22.6) | 23–31 (27) | 23–31 (26) | 18–28 (24.4) | 22.5–27.0 (24.8) |
| Ant. to NR | (85.1) | 140.1––151.0 (146.1) | 145–166 (154.5) | – | 144–165 (157) | 110–145 (130.5) | 131.0–155.5 (145.0) |
| Phasmid to anus | – | 27.1––43.0 (37) | 40–47 (43.2) | 33–46 (39) | 33–46 (39.8) | 32–51 (40.5) | 55.0–78.5 (64.8) |
| Ant. to deirid | – | – | 154–166 (159.0) | 166–190 (178) | 166–190 (178) | 129–152 (138) | 149.0–183.0 (165.4) |
| BD at vulva | (24.8) | 43.6––58.9 (48.2) | 42–50 (45.6) | – | – | 35–64 (49) | 33.5–45.5 (40.4) |
| BD maximum | (24.8) | 45.9––60.8 (50.1) | 38–48 (41.4) | 46–67 (57) | 46–67 (55.8) | 30–55 (41) | 38.0–48.0 (43.3) |