Dilasia basalis ( Reuter, 1884 )

Carpintero, Diego Leonardo, 2014, Western Hemisphere Lasiochilinae (Hemiptera: Heteroptera: Anthocoridae) with comments on some extralimital species and some considerations on suprageneric relationships, Zootaxa 3871 (1), pp. 1-87 : 21

Dilasia basalis ( Reuter, 1884)

Lasiochilus basalis Reuter, 1884: 15 .

Dilasia basalis: Carpintero, 2002: 27 .

Diagnosic characters: Measurements, see Table IV. Characterized by the combination of following characters: general coloration dark brown to blackish, antennal segment II subequal to head in length, thickened at apex, head prolonged anteriorly from base of antennae, short and thick forefemora, and by the apically thickened opening of the ostiolar peritreme. Antennal segments (I:II:III:IV) ♀ 1: 2.1: 1.9: 2.1.

Distribution: Mexico, Grenada and Venezuela. ( Fig. 48 )

Material examined: MEXICO: ♀ Chiapas, Escuintla, Crawford. Lasiochilus basalis Reuter, B. Poppius det. (compared with type) ZMHF ; GRENADA: ♀ Chantilly Est. (Windward side), H. H. Smith, 72. USNM .

Discussion: As with the previous species, the author had no males with which study the genital structures. However, he left them in Dilasia because of the smooth dorsal surface, shape of pronotum, antennal morphology and the typical forefemora. This species is closely related to D. varicolor in having the second antennal segment thicker at apex, but differs by having this segment longer and by its darker coloration. Its ostiolar peritreme opening has the apex thickened as in D. punctipennis but in this latter species, the apex is acute: in D. basalis it is rounded.

Figures

FIGURES 48–49. Distribution of Dilasia (I, II).