Striatoandricus guatemalensis (agamic)

Cynips guatemalensis

Hab: Guatemala, San Geronimo (Champion)

The gall is found on the lower side of the leaves of an Ilex oak [unclear what this means; later biology places galls from this genus on a white-group oak but no host has been definitively associated with it]. It is placed on the mid-rib, usually towards the centre of leaf; it is flat on the lower side, but dome-shaped above, and is wider than high. The centre is hard and woody, and the fibres radiate from the centre towards the edge; the larval chambers are situated along the edge, there being none in the centre. Outside the woody central gall is a covering of woolly hairs, white internally, but reddish brown on the outer side. An average-sized gall measures for the gall proper 7 lines in breadth and 5 lines in height, while the woolly outer covering is nearly 3 lines. The galls are usually in pairs; but single specimens are also found, and in one instance there were four specimens on a single leaf; these were much smaller than usual. 

Dr. Karsch describes three galls on oak (Quercus benthami, Dec.) [Q benthami is a red-group oak, and thus these galls have nothing to do with S guatemalensis] from Mexico which are in all probability formed by species of Cynipidae, but no names are given to them, namely: — 

1. A round gall on the leaf-stalk close to leaf, dark red externally and velvet-like in texture. The thin-walled shell encloses an inner gall in the centre, and from this inner gall fibres radiate to the circumference, thus keeping it in position. It has a diameter of 26 cm. 
2. A small, smooth, shining, yellowish, roundish gall of 14 millim. diameter on the leaf. 
3. A gall like the first, but larger, being 4 cm. in diameter and outwardly smooth, yellowish and warty in texture 

[Synergus dorsalis](https://www.biodiversitylibrary.org/page/588210#page/81/mode/1up) 

Hab. Hab: Guatemala, San Geronimo (Champion)

All my specimens were cut out of the galls of Cynips guatemalensis.

Biologia Centrali-americana: Insecta. Hymenoptera. Vol. 2