Hemirrhagus chilango, Perez-Miles & Locht, 2003

Mendoza Marroquín, Jorge I., 2014, Taxonomic revision of Hemirrhagus Simon, 1903 (Araneae: Theraphosidae, Theraphosinae), with description of five new species from Mexico, Zoological Journal of the Linnean Society (Zool. J. Linn. Soc.) 170 (4), pp. 634-689 : 642-643

HEMIRRHAGUS CHILANGO

PÉREZ- MILES & LOCHT, 2003

( FIGS 1A , 2F , 3A–I , 4A–D , 48 )

Hemirrhagus chilango Pérez-Miles & Locht, 2003: 367 , figs 1–6 (D ♂).

Type material: Holotype ♂ LAAH, MEXICO: Pedregal de San Ángel , México DF 15.xi.1977, col. A. Zaldivar. Examined. Female unknown.

Additional material examined: 1 juvenile LAE, MEXICO: Pedregal de San Ángel , México DF 13.ix.1985 , no col. name; 1 ♂ CNAN 3470 , MEXICO: Ciudad Universitaria , México DF x.2002 , no col. name; 1 ♂ CNAN 3485 , MEXICO: Pedregal de San Ángel , México DF 27.vii.2002 , no col. name; 1 ♂ CNAN 4253 , MEXICO: Bosque del Ajusco , México DF 20.viii.2012, col. F. Torres ; 1 ♂ CNAN 4252 , MEXICO: IBUNAM Ciudad Universitaria , México DF 13.ix.2012, col. J. Cruz.

Emended diagnosis: The following character combination is diagnostic for H. chilango . Male palpal bulb with slender embolus similar in length to tegulum, SA ends at embolus base ( Fig. 4A, D ); VG deep ( Fig. 4B ). Embolus strongly curved retrolaterally on distal half ( Fig. 4C, D ). Pap reduced with one slender spinose seta ventrally that does not exceed the apex of Pap; Rap is narrow with one large spinose seta on dorsal face, the spinose seta exceeds the apex of Rap ( Fig. 3G, I ). Metatarsus I almost straight ( Fig. 3H ). Ocular tubercle and eyes normally developed, periocular pigmentation complete ( Fig. 3A, D ). Labial cuspules are highly variable in number, ranging from 16–38 ( Fig. 3B, E ). Urticating setae arranged in two lateral, oval patches, black in colour, with well-defined margins ( Fig. 3C, F ).

Hemirrhagus chilango differs from most Hemirrhagus species in having the urticating setae arranged in two lateral patches. It differs from H. perezmilesi by having the tibial apophyses well developed. Differs from H. valdezi sp. nov. by oval patches of urticating setae with well-defined margins rather than diffuse, and metatarsus I straight rather than curved.

Distribution and natural history: Known only from Mexico City ( Fig. 48 ); inhabits shrubland and pine forest ( Fig. 2F ).

Figures

Figure 1. A–H, J–L, Hemirrhagus spp. habitus; I, Hemirrhagus papalotl egg-sac. A, Hemirrhagus chilango, male CNAN 4253, in life; B, C, Hemirrhagus eros, B, female, C, male; D, E, Hemirrhagus ocellatus, D, male CNAN 4457, in life, E, female; F, Hemirrhagus benzaa sp. nov., female; G–I, H. papalotl, G, male CNAN 4461, in life, H, female CNAN 4461, in life, I, female CNAN 4459 with fixed hammock egg-sac, in life; J, K, Hemirrhagus stygius, J, male CNAN 4462, in life, K, female CNAN 4462, in life; L, Hemirrhagus franckei sp. nov., holotype male CNAN-T0776, in life. Photos: A, C, D, E, G–K: J. Mendoza; B, F, L: E. Goyer.

Figure 2. A–C, Hemirrhagus spp. habitus; D–K, habitat. A, B, Hemirrhagus embolulatus sp. nov., A, holotype male CNAN-T0774, in life, B, paratype female CNAN-T0775, in life; C, Hemirrhagus valdezi sp. nov., paratype female CNAN-T0780, in life; D, Cueva de la Peña Blanca entrance, type locality of Hemirrhagus ocellatus; E, 4 km west of Puerto de la Soledad, pine forest, type locality of Hemirrhagus franckei sp. nov.; F, Bosque del ajusco, pine forest, locality of Hemirrhagus chilango; G, Valle de los fantasmas, oak forest on the road to Cueva de la Laguna, type locality of Hemirrhagus elliotti; H, Cueva de los Potrerillos entrance, type locality of Hemirrhagus stygius; I, Paradero Puerta del Sol, pine forest, locality of Hemirrhagus benzaa sp. nov.; J, Omiltemi, tropical forest-pine forest ecotone, type locality of H. embolulatus sp. nov.; K, El punto, type locality of Hemirrhagus eros. Photos: A: M. Gamache; B, E, I, K: E. Goyer; C: L. Vazquez; D, F, J: J. Mendoza; G, H: J. Cruz.

Figure 3. Hemirrhagus chilango Pérez-Miles & Locht, 2003, male CNAN 3470. A, carapace, dorsal view. B, prosoma, ventral view showing the retrolateral projection of the coxa (RP) on coxae of all legs (arrows show this feature only on coxa of third and fourth legs). C, opisthosoma, dorsal view. D, ocular tubercle, dorsal view. E, labial and maxillary cuspules. F, opisthosoma, lateral view showing urticating setae patch. G, tibial apophyses, prolateral view. H, metatarsus I, prolateral view. I, tibial apophyses, ventral view. Scale bars = 2 mm (A–C, F), 1 mm (E, G–I), 0.5 mm (D).

Figure 4. Hemirrhagus chilango Pérez-Miles & Locht, 2003, male CNAN 3470, left palpal bulb. A, retrolateral view. B, prolateral view. C, dorsal view. D, ventral view. Abbreviations: SA, subapical keel; VG, ventral groove. Scale bar = 1 mm.

Figure 48. Known distribution of Hemirrhagus stygius (Gertsch, 1971), Hemirrhagus elliotti (Gertsch, 1973), Hemirrhagus embolulatus sp. nov., Hemirrhagus eros Pérez-Miles & Locht, 2003, Hemirrhagus chilango Pérez-Miles & Locht, 2003, Hemirrhagus nahuanus (Gertsch, 1982), Hemirrhagus papalotl Pérez-Miles & Locht, 2003, Hemirrhagus grieta (Gertsch, 1982), Hemirrhagus coztic Pérez-Miles & Locht, 2003, and Hemirrhagus perezmilesi García-Villafuerte & Locht, 2010.