Neomacrocoris dubius Poisson

Sites, Robert W. & Mbogho, Aaron Y., 2012, Revision of the African genus Neomacrocoris (Hemiptera: Heteroptera: Nepomorpha: Naucoridae), Zootaxa 3555, pp. 1-39 : 9-10

Neomacrocoris dubius Poisson

Figs. 7–9

Neomacrocoris dubius Poisson 1948 : Rev. Zool. Bot. Afr. 41: 217-219.

Discussion. This is a small species; the male given as 7.2 and female 8 mm ( Poisson 1948 ). We remeasured the specimens at 7.50 (male) and 8.25 and 8.35 (females). The locality for the type series of one male and two females was given as Grote de Sejea Santa in French West Africa. Poisson (1948) did not designate a type, thus these three specimens are syntypes. We here designate the male as a lectotype and the two females are paralectotypes. Poisson indicated that the specimens would remain in his collection and provided illustrations of the 7th and 8th abdominal terga but did not describe or illustrate the aedeagus. The male lectotype (Fig. 7), two female specimens with the same label data, and slide-mounted genitalia and abdominal terga of the lectotype are housed in the Drake Collection at the USNM.

Diagnosis. Although broken, the phallosoma appears to have a ventrodextral flange similar to that of N. parviceps . The flange is doubled, with a second parallel flange projecting ventrad and not visible in dorsal view. The pronotum differs from that of most other species of Neomacrocoris because rather than being continuously convex transversely, it has a central area that is somewhat flattened and a distinct shallow depression in the anterior third near the lateral margin. The latter characteristic is most easily seen in a dorsolateral view. The pseudostrigil is elongate and directed posteriorly (Fig. 8). The female subgenital plate is gently sinuate to the distal spatulate process (Fig. 9).

Published records. FRENCH WEST AFRICA, Grote de Sejea Santa ( Poisson 1948 ).

Material examined. LECTOTYPE by present designation: Grotte Sejea Santa / Millot 1937 / Neomacrocoris dubius n. sp. / Type / Poisson to Drake Coll 1979 ( USNM, 3). PARALECTOTYPES: Same data as lectotype ( USNM, 2Ƥ).

FIGURES 7–9. Neomacrocoris dubius (7) habitus of LECTOTYPE; (8) left medial lobe and pseudostrigil of male 7th tergum, photographed from Poisson slide at USNM; (9) terminal abdominal sterna of female including subgenital plate.