Agrilinellus oaxacaensis, Dellacasa & Dellacasa & Gordon, 2008

Dellacasa, Marco, Dellacasa, Giovanni & Gordon, Robert D., 2008, Agrilinellus, new genus and four new species of Mexican Aphodiini (Scarabaeoidea: Scarabaeidae: Aphodiinae), Insecta Mundi 2008 (53), pp. 1-16 : 12-14

Agrilinellus oaxacaensis , new species

( Fig. 21-23 , 44 )

Type Locality. Mexico, Oaxaca, 9.5 mi. E of Oaxaca (Km 80 Rt. 175), 6000 '.

Type repository. Henry F. Howden and Anne Howden collection, Ottawa, Canada [now in CMNC]

Description of female. Length 4.0- 4.5 mm; oval, moderately convex, shiny; head and pronotum glabrous, elytra pubescent. Reddish brown, head and pronotum more or less widely reddish at margins; elytra yellowish with brownish spots variously arranged; legs brownish red; antennal club reddish. Head with epistome moderately gibbous on disc, coarsely, densely, subregularly punctured; punctation somewhat superficial and sparse on disc only; clypeus weakly sinuate at middle, subangulose at sides, thinly bordered, edge shortly and sparsely bristled laterally and feebly reflexed at front angles; genae obtusely rounded, sparsely ciliate, protruding more than eyes; frontal suture finely impressed, slightly trigibbous; frons coarsely, densely, evenly punctured. Pronotum transverse, moderately convex, shiny, coarsely, densely, somewhat irregularly punctured, on disc longitudinally narrowly impunctate; larger punctures umbilicate, lateral ones shortly sparsely pubescent; lateral margins feebly arcuate, distinctly bordered, edge glabrous; hind angles obtusely rounded; base faintly bisinuate, distinctly bordered. Scutellum coarsely, irregularly punctured. Elytra oval, rather convex; epipleural carina subdenticulate at humerus; striae deep, strongly punctured, distinctly crenulate; intervals slightly convex, coarsely somewhat irregularly punctured; punctures subserially arranged on each side and with rather short recumbent hairs. Hind tibiae superior apical spur shorter than first tarsal segment; latter somewhat longer than following three combined. Male: unknown.

Type material. MEXICO, Oaxaca: 9.5 mi. E of Oaxaca (Km 80 RT. 175), 6000', 20.VIII.1973, leg. Newton, 1 ex. (Holotype, female, HAHC); Guelatao env., 18 o 29’08.7"N- 96 o 30’13.7"W, m 2650, 10.VII.2002, leg. Dellacasa M. & Martínez I., horse dung, 2 ex. (Paratypes, females, DCGC) .

Distribution. Mexico (Oaxaca).

Etymology. Named from the Mexican State of Oaxaca.

Bionomics. The two paratypes were collected in horse dung in July.

Figures

Figure 21-32. Agrilinellus oaxacaensis new species [9.5 mi E of Oaxaca, (Km 80 Rt 175), Oaxaca, Mexico]. 21) Epipharynx. 22) Habitus. 23) Habitus of female (morphological details). Agrilinellus ornatus (Schmidt, 1911) (Cuiyachapa, Mpio. Coscomatepec, Veracruz, Mexico). 24) Habitus of male (morphological details). 25-29) Color variation. 30-31) Aedeagus (dorsal and lateral view). 32) Epipharynx.

Figure 43-46. Agrilinellus spp., dorsal habitus. 43) A. abbonai new species (S. Pedro Jácuaro, Michoacán, Mexico). 44) A. oaxacaensis new species (Guelatao env., Oaxaca, Mexico). 45) A. azteca (Harold, 1863) (caminoex. a Potrero Nuevo, Cuiyachapa, Veracruz, Mexico). 46) A. chiapasensis (Galante et al., 2003) (Monte Cristo, 23 Km N Metapán, El Salvador).