Chimarra (Chimarra) creagra Flint 1981

Chimarra (Chimarra) creagra

It appears that this species is somewhat related to C. emima Ross. It is very easily recognized by having the dorsomesal plates of the tenth tergum ending in sharp recurved hooks.

ADULT.—Length of forewing, 4.5–5.5 mm. Color fuscous, bases of legs slightly paler. Forewing with a bulla below Rs; hind wing with 4 branches to Rs and 3 to M. Male genitalia: Ninth segment with anterior margin oblique; with posteroventral process about as long as wide. Tenth tergum with broad lateral plates bearing a heavily sclerotized, laterally angled, subterminal lobe; with a pair of submesal plates ending in sharp, recurved hooks. Claspers about as long as broad, dorsal margin with a mesally directed process. Aedeagus with an apicoventral spine; internally with a pair of long spines and a short basal rod and ring assembly with a small sclerite laterad. Female genitalia: Eighth tergum with a short, almost straight anterolateral process. Ninth sternum separated from eighth segment, almost triangular in lateral aspect; tergum with a slender anterolateral process almost as long as eighth segment. Internally with an elongate lobe lightly sclerotized ventrally and apicodorsally, a single mesal sclerite attached beneath these lobes.

MATERIAL.—Holotype, male: VENEZUELA, ARAGUA, Maracay, Río Limón, Estacion Piscicultura, 24–25 Mar 1975, F.H. Weibezahn. USNM type 76612.

Paratypes: Same data as holotype, 8 5; 28–29 Aug 1974, 24 10; 10–11 Sep 74, 5 18; 8–9 Oct 74, 7 3; 22–23 Oct 74, 20 20; 5–6 Nov 74, 78 31; 19–20 Nov 74, 19 50; 4–5 Dec 74, 11 17; 18–19 Dec 74, 13 1; 3–4 Jan 75, 5 8; 29–30 Jan 75, 26 21; 12–13 Feb 75, 43 35; 25–26 Feb 75, 17 24; 11–12 Mar 75, 38 35; 24–25 Mar 75, 9 5; 7–8 Apr 75, 60 61; 22–23 Apr 75, 43 46; 6–7 May 75, 10 11; 19–20 May 75, 35 5; 3–4 Jun 75, 67 36; 17–18 Jun 75, 23 28; 1–2 Jul 75, 161 66; 15–16 Jul 75, 55 53; 11–12 Aug 75, 33 44; 25–26 Sep 75, 67 46; 10 Jul 73, 3 2; 3–6 Feb 76, C.M. and O.S. Flint, Jr., 47 54. El Limón, Maracay, 2–6 Feb 1976, C.M. and O.S. Flint, Jr., 31 51. Rancho Grande, 24–31 Oct 1966, S.S. and W. D. Duckworth, 1. 4 km S Rancho Grande, 5 Feb 1976, C.M. and O.S. Flint, Jr., 1. 1 km S Rancho Grande, 5 Feb 1976, C.M. and O.S. Flint, Jr., 17. 3 km N Rancho Grade, 4 Feb 1976, C.M. and O.S. Flint, Jr., 1. Dos Riitos, 6 km N Rancho Grande, 4 Feb 1976, C.M. and O.S. Flint, Jr., 8 7. Ocumare (de la Costa), 19–20 Feb 1969, P. and P. Spangler, 49 75. BARINAS: Puente Parangula, 8 km S Barinitas, 18 Feb 1976, C.M. and O.S. Flint, Jr., 2.

EUCADOR, PASTAZA: Puyo, 1–7 Feb 1976, Spangler, et al., 1. 16 km W Puyo, 3 Feb 1976, Spangler, et al., 20. Estacion Fluviómétrica, 27 km N Puyo, 4 Feb 1976, Spangler, et al., 2.

Chimarra creagra là một loài Trichoptera trong họ Philopotamidae. Chúng phân bố ở vùng Tân nhiệt đới.