Bassettia tenuana WELD, 1921

Melika, G & Abrahamson, WG, 2007, Review Of The Nearctic Gallwasp Species Of The Genus Bassettia Ashmead, 1887, With Description Of New Species (Hymenoptera: Cynipidae: Cynipini), Acta Zoologica Academiae Scientiarum Hungaricae 53 (2), pp. 131-148 : 140-141

Bassettia tenuana WELD, 1921

( Fig. 5 )

Bassettia tenuana WELD 1921: 232 . Female and gall.

Type material examined – Holotype female “Las Vegas N. M.”, red “22581 USNM ” and 1 paratype female with the same labels. Two other females “ Bassettia tenuana, Weld ”, red “ Paratype No. 22581, USNM ”, “15601d”, “710”, “Flagstaff, Ariz. Apr.” designated by L. WELD as paratypes of B. tenuana , belong to a new species, B. weldi .

Other material examined – 48 females: 37 with “ L. H. Weld, Collector”, “Hillasboro, N. M.”, “Reared May, 8.22.”, “Hopk. US, 15638a.”; 1 with “Beut. Coll. rec’d 1935”, “710”, “Q. fendleri”, “Cut out, Nov. 11”, “Shoemaker N. M.”; 2 with “Beut. Coll. rec’d 1935”, “Oat. 1921.”, “Las Vegas Hot, Spr. N. M.” (in the USNM); and 8 females from the AMNH collection, collected also in New Mexico .

Diagnosis – Closely related to B. weldi (see Diagnosis for B. weldi ).

Biology – Only the asexual generation is known which induces stem galls mainly at the base of young sprouts, with larval cells hidden under the bark on Q. fendleri (= Q. × pauciloba RYDB. (pro sp.) [gambelii × turbinella]. Adults emerge in April ( WELD 1921).

Distribution – USA: New Mexico (Las Vegas).

Figures

Figs 1–8. 1–2 = Bassettia pallida, head: 1 = from above, 2 = front view. 3–4 = Plagiotrochus quercusilicis, head:3 = from above, 4 =front view. 5 = Bassettia tenuana, fore wing. 6–7 = propodeum:6 = B.