Conocephalus (Xiphidion) ictus Scudder 1875
Creators: name: Naskrecki, Piotr
Publisher: name: Zenodo
Year: 2000
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Dryophthoridae
Conocephalus
Conocephalus ictus

description: <i>Conocephalus (Xiphidion) ictus</i> (Scudder, 1875) Figs. 1 D, 2D, 2I, 39C, 40B, Map 2 1875 Scudder, Proc. Boston Soc. Nat. Hist. 17: 461 &gt;&gt; <i>Xiphidium;</i> type locality: Mexico; type depository: Academy of Natural Sciences, Philadelphia – syntypes, males and females 1906 Kirby, Syn. Cat. Orth. 2: 281. &gt;&gt; <i>Anisoptera</i> 1912 Karny, Genera Insectorum 135: 8 &gt;&gt; <i>Conocephalus (Neoxiphidion) ictus</i> 1915b Rehn and Hebard, Trans. Amer. Ent. Soc. 41: 250 &gt;&gt; <i>Conocephalus (Xiphidion)</i> [syn.] <i>mexicanum</i> = 1875 Saussure, Rev. Mag. Zool. 2 ser 11: 208 &gt;&gt; <i>Xiphidium</i>; type locality: Central America: Mexico; type depository: Geneva 1915b Rehn and Hebard, Trans. Amer. Ent. Soc. 41: 250 &gt;&gt; syn. of <i>C. ictus</i> <i>Diagnostic description.—</i> General characteristics as described above, body quite robust as for the genus; most individuals in Costa Rican population brachy- to mesopterous, less frequently fully macropterous. Stridulatory file of male 1.63 mm long, with 61 teeth, maximum width of file 68.5 μm (Fig. 40 B); teeth of file thick, peg-like, nearly uniformly spaced along entire file. Left (upper) mirror of stridulatory apparatus as in Fig. 1 D, as long as or slightly longer than eye diameter. Fastigium of vertex as wide as 3/4 of scapus, its sides slightly divergent towards apex. Outer ventral edge of hind femur unarmed or armed with 1-3 minute, black spines. Male cercus as in Fig. 39 C; ovipositor only slightly shorter than hind femur (ratio ovipositor/hind femur 0.79-0.89), straight (Fig. 2 D). <i>Coloration</i>.— General coloration pale green, dorsal band on head and pronotum very dark, often nearly black, bordered by two thin, lighter stripes; posterior half of abdomen in male yellow to reddish-brown, cerci yellow to light brown; abdomen in females usually green or faintly yellowish. <i>Measurements</i>.— Table 2. <i>Bioacoustics.—</i> The call of <i>C. ictus</i> is similar to that of <i>C. cinereus</i>, and consists of two parts: a train of continuous buzz followed by a series of short, individual chirps (in <i>C. cinereus</i> the sequence is reversed and the buzz always follows the individual chirps) (Fig. 51 A-B). At 32°C the continuous buzzes last 1.68- 13.86 s (avrg. 6.15±4.05, n=17) and consist of pulses (chirps) produced at the rate of 18- 19/s, with each pulse lasting 50-54 ms (avrg. 51.2±0.7, n=30). The slow series last 0.57- 2.79 s (avrg. 1.64±0.68, n=13) and consist of 3-6 individual pulses produced at the rate of 2.8-3/s. Within the audible part of the call most energy is allocated between 10 and 17 kHz. <i>Distribution.</i> — This species has been recorded from most of Mexico, Guatemala, Nicaragua, and northern Costa Rica (Map 2). <i>Material examined.</i> — <b>COSTA RICA: Alajuela Prov.</b>, 11.5 mi. NE Esparta on Pan. Amer. Hwy., 5 October 1961 (coll. Hubbell, Cantrall, Cohn) - 6 males (UMMZ); <b>Guanacaste Prov.</b>, 15.3 mi. SE Las Cañas on Pan. Amer. Hwy., 5 October 1961 (coll. Hubbell, Cantrall, Cohn) - 3 males (UMMZ); Estac. Cacao, SW side Volcán Cacao, elev. 1000 - 1400 m, 15 March 1988 (coll. GNP Biodiv. Survey) - 1 male (INBio); same locality, elev. 1000 - 1400 m, 15 April 1988 (coll. GNP Biodiv. Survey) - 1 male (INBio); Los Almendros, P.N. Guanacaste, 8 - 20 November 1993 (coll. E. Lopez) - 1 male (INBio); Area de Conservacion Guanacaste, Santa Rosa National Park, 21 - 24 August 1999 (coll. P. Naskrecki, D. Otte, G. Morris) - 1 male (PN collection); <b>GUATEMALA</b>: San Marcos, Finca La Paz near La Reforma, elev. 1280 m, 3 May 1956 (coll. T.H. Hubbell) - 1 male, 1 female (UMMZ); same locality, elev. 1054 m, 5 May 1956 (coll. T.H. Hubbell) - 1 male (UMMZ); Honduras: Progreso, 19 March 1923 (coll. T.H. Hubbell) - 1 male (UMMZ); <b>MEXICO</b>: - 2 males, 2 females (ANSP, UMMZ); Sinaloa, Los Mochis, 2 - 10 December 1917 (coll. J.A. Kusche) - 1 male (ANSP); same locality, 21 December 1917 (coll. J.A. Kusche) - 1 male (ANSP); Venvidio, 15 August 1918 (coll. J.A. Kusche) - 1 female (ANSP); Villa Union, 27 September 1918 (coll. J.A. Kusche) - 1 female (ANSP).
description: Published as part of <i>Piotr Naskrecki, 2000, Katydids of Costa Rica / Vol. 1, Systematics and bioacoustics of the cone-head katydids (Orthoptera: Tettigoniidae: Conocephalinae sensu lato)., Philadelphia, PA :The Orthopterists Society at the Academy of Natural Sciences of Philadelphia,</i> on page 19, DOI: 10.5281/zenodo.270035