Aethodelphax alatus (Beamer, 1948) Beamer, 1948

Bartlett, Charles R., 2011, Aethodelphax prairianus gen. et sp. nov. (Hemiptera: Delphacidae) and seven congeneric species from North American Delphacodes, Zootaxa 2837, pp. 48-66 : 55-56

Aethodelphax alatus (Beamer, 1948) , comb. nov.

( Fig. 3 )

Delphacodes alata Beamer, 1948b: 118 –119.

Type locality. USA: Florida, Monroe Co., Big Pine Key.

Diagnosis. Color. Body, stamineus, darker on pleural regions and lateral portions of body in dorsal view.

Structure. Length male brachypter 2 mm ( Beamer 1948b; all observed specimens dissected), width (n=2) 0.50; female not observed. Head just narrower than prothorax, ratio vertex L:W (n=2) 1.04. Calcar bearing 19–20 fine black teeth. Genitalia with pygofer opening taller than wide in caudal view ( Fig. 3 D), lateral margins rounded; diaphragm well-developed, medially narrowed, armature of the diaphragm wider than tall, broadly rounded, strongly projecting dorsocaudally, lateral margins serrulate. Parameres ( Fig. 3 E) pediform with dorsal margin sinuate in caudal view, angled ventromedially; with distinct acuminate outer and inner angles; basal angle well developed, acute, caudally projecting. Aedeagus ( Fig. 3 F, G) laterally flattened, sinuate, curved slightly dorsad; bearing a conspicuous acuminate flange on left side, a large subapical tooth on right side, and a subapical dorsal row of small teeth; gonopore ventral subapical. Aedeagal suspensorium conspicuous, encircling aedeagus, about as wide as long between aedeagus and segment 10. Segment 10 longer than broad, bearing pair of short stout processes on ventrocaudal margin, and a second, much shorter pear about midlength in lateral view.

Remarks. This species was described from 6 specimens (4 males, 2 females). All observed specimens of this species had been previously dissected to confirm identification, and all were brachypterous. The presence of a second pair of processes on segment 10 separates this species from all others in the genus except A. paraparvulus and A. sagitattus . It can be separated from both these species by the acuminate flange on the aedeagus, and also by the absence of the large terminal dorsal aedeagal tooth of sagittatus , and by the aedeagus being somewhat sinuate instead of downcurved in A. paraparvulus . However, superficially, A. alatus appears most similar to A. megadontus , which lacks the second pair of processes on segment 10 and has more extensive aedeagal foliations.

Reported hosts. None.

Distribution. USA: FL.

Material observed. PARATYPES: USA: Florida [Collier Co.,] Naples, 3–16–1947, R. H. Beamer (1m, SEMC).

Other material observed: USA: Florida [Putnam Co.,] San Mateo, 12–23–1950, L.D. & R.H. Beamer (1m, SEMC).

Figures

FIGURE 3. Aethodelphax alatus (San Mateo, FL; scale = 0.5 mm (A – C), 0.2 mm (D, H )). A. dorsal view; B. frons; C. lateral view; D. pygofer, caudal view; E. left paramere, widest view; F. aedeagus, left lateral view, distal apex at top; G. aedeagus, ventral view, apex at top; H. pygofer, lateral view.