Callirhytis pulchra (sexgen)

Neuroterus vesicula (sexgen)

Disholcaspis q-margarettae-bullet-gall (agamic)

Neuroterus perminimus (sexgen)

Andricus quercusutriculus (sexgen)

Neuroterus bassettii (sexgen)

Proteoteras aesculana

Callirhytis quercuspunctata (agamic)

Andricus pulchra Bass.

Oak flower gall. The round, shotlike, greenish white, soft, spongy polythalamous galls of this species were taken on catkins of red oak at Poughkeepsie May 20, 1903, adults appearing May 29. 

Cynips vesicula

White oak [Quercus alba]
Bud galls
Smooth, brown, central.

Cynips rugosa

Scrub oak 
Twig galls
round, sessile galls 1/2 to 1/4 in diameter.

Neuroterus perminimus

White oak
Leaf galls
pustulate, abundant. 

Andricus utriculus

White oak

Leaf galls
globular, green or purplish, 1/6 in.

Neuroterus pallipes

White oak

Leaf galls
small, hairy on stem or midrib

Proteoteras aesculana

The larva of another moth, Proteoteras aesculana Riley, also works in the leaf stalks of both buckeye and maple and extends its tunnels for a distance of about 0.5 inch to 2 inches into the slender terminal twigs of both these trees, often causing a pseudogall.

Andricus punctatus Bass. 

Rough, hard, woody, gnarled scaly swellings on red oak limbs and twigs not over inches in diameter, occasionally occur in immense numbers. 

This interesting gall insect is ordinarily rare in the vicinity of Albany, if we may base an opinion on the absence of earlier records. The writer’s attention was called by Dr H. M. Pollock, in April 1902, to a red oak at Loudenville near Albany, which was very badly infested with the galls of this species. It will be seen by reference to plate 48, figure 4, that these unnatural growths are irregular swellings along the smaller limbs, ranging in diameter from less than 0.5 to 1.5 inches, depending on the size of the twig. They are of variable length and frequently several coalesce to form an elongated mass of diseased tissue. The galls illustrated were inclosed in a box and produced over 500 insects, some of which were guest flies and a few were probably parasites. These galls were made the basis of an estimate and it was calculated that the entire tree bore 20,000 and produced over 500,000 insects. The general character of the infestation is well shown on plate 47. 

This species was reared Ap. 11 by Mr Bassett, from a young, thrifty red oak growing in the vicinity of Waterbury Ct. Its local habit is confirmed by his finding galls only on the one tree. Professor Walsh also described what is probably this same species, under the specific name of podagrae, and he likewise refers to its local habits. Both gentlemen, as well as ourselves, reared large numbers of the insects without obtaining males.

Insects affecting park and woodland trees