Paracraspis guadaloupensis ( Fullaway, 1911 )

Melika, George, Pujade-Villar, Juli, Nicholls, James A., Cuesta-Porta, Victor & Stone, Graham N., 2021, Three new Nearctic genera of oak cynipid gall wasps (Hymenoptera: Cynipidae: Cynipini): Burnettweldia Pujade-Villar, Melika & Nicholls, Nichollsiella Melika, Pujade-Villar & Stone, Disholandricus Melika, Pujade-Villar & Nicholls; and re-establishment of the genus Paracraspis Weld, Zootaxa 4993 (1), pp. 1-81 : 65-66

Paracraspis guadaloupensis ( Fullaway, 1911) , comb. rev.

Fig. 208

Callirhytis guadaloupensis Fullaway, 1911: 363 , female, gall.

Acraspis guadaloupensis (Fullaway) : Weld, 1926: 59.

Paracraspis guadaloupensis (Fullaway) : Weld, 1952b: 324.

Acraspis guadaloupensis (Fullaway) : Melika & Abrahamson, 2002: 157.

Types examined. Syntype No. 5826 in the California Academy of Sciences Collection. The type is lost, not examined .

Material examined. Only galls were examined, no adults. One gall labelled as „Elk Mnt. Ranger, Sta-Lake Co, Calif. gall 10.09.27”, „ Q. chrysolepis Kinsey coll”, „ Cynips guadaloupensis , det. Kinsey 28”. In the general collection of the USNM there is one immature stage specimen (http://n 2t.net/ark:/65665/3de4c2930-e9bc-4a70-a85e- 88495aff2334), no adults were found .

Diagnosis. In P. guadaloupensis the mesoscutellum is dull rugose; the mesopleuron is rugose; the second metasomal tergum extending to 1/3 of the metasoma length, while in P. insolens and P. patteloides the mesoscutellum and the mesopleuron are delicately coriaceous ( Figs 206–207 , 216–218 ); the second metasomal tergum extending to more than 1/2 of the metasomal length ( Figs 206–207 , 221–222 ).

Description. Asexual female. The following characters are edited from the short original description ( Fullaway 1911), with our clarification of some character states. Head punctate, with dense setae; antenna with 12 flagellomeres; however, the last flagellomere 2.0x as long as previous one, implying that the suture between F13 and F12 is indistinct, hence the antenna with 13 flagellomeres. Mesosoma rugose, with setae. Notaulus extending to half the length of mesoscutum; anterior parallel line extending to less than half length of mesoscutum; mesoscutellum pointed, deeply rugose, with dense setae; mesopleuron rugose; mesoscutellum pointed distally. The size and venation of the forewing similar to the two other species in this genus. Body length 2.5 mm.

Gall. ( Fig 208 ). Convex-flat, disc-shaped, monolocular, detachable galls on the underside of Q. chrysolepis leaves, usually on lateral veins. The gall is up to 5.0–6.0 mm in diameter; occurs singly or up to 2–3 galls on one leaf ( Fullaway 1911).

Biology. Only the asexual generation is known, inducing galls on Q. chrysolepis . Galls start to develop in May on the previous year’s leaves; adults emerge from late winter to early spring with emergence holes usually off center.

Distribution. USA: California ( Burks 1979).

Figures

FIGURES 208–209. Paracraspis asexual galls. 208, P. guadaloupensis, comb. rev.. 209, P. insolens, comb. rev.. Images courtesy of J. Gross.

FIGURES 206–207. Paracraspis insolens, comb. rev., asexual female. 206–207, metasoma: 206, lateral view, 207, ventral view.

FIGURES 216–219. Paracraspis patelloides, comb. rev., asexual female. 216, mesosoma, lateral view. 217, mesoscutum, dorsal view. 218, mesoscutellum, dorsal view. 219, metascutellum and propodeum, posterodorsal view.

FIGURES 220–222. Paracraspis patelloides, comb. rev., asexual female. 220, forewing. 221–222, metasoma: 221, lateral view, 222, ventral view.