The pine bud moth, Exoteleia dodecella L., is a serious pest of pine throughout much of Europe. In North America, its presence was first reported in 1928 in nurseries at Fonthill and Ridgeville in the Niagara Peninsula (Annual Report, Minister of Agriculture, Ottawa, Canada, 1929). The occurrence and spread of this species was followed closely until 1933 (Sheppard, 1930; Ross and Caesar, 1931; Caesar and Ross, 1932, and Twinn, 1933), in connection with the European pine shoot moth eradication program which was then in progress.

Early in the course of a study of the dipteran family Ceratopogonidae,it was realized that very little was known about the species composition, both in numbers and kind, in the state of Connecticut. Consequently a sltudy was set up to determine the species present and the relative abundance of the more common forms. The results of this study are presented in this paper.

Many new species of Typhlodromus were described in recent years and these can readily be assigned to the species groups established by Chant (in press). Recently I received some slides of mites collected by Dr. Stanley Flanders, Citrus Experiment Station, Riverside, California, in Hong Kong in 1953. These mites are of the subgenus Typhlodromus as defined by Chant (1957), of a hitherto undescribed species that does not fall into any of the groups listed and that is of particular importance to those interested in the systematics of the Phytoseiidae.

Results of an experiment reported previously (Rivard, 1958a) showed the influence of various humidities on mortality and rate of development of the immature stages of Tyrophagus castellanii (Hirst)reared on mould cultures at a constant temperature. Results of an experiment on the influence of humidity on the longevity and fecundity of the adult mites are reported in the present paper. Information gathered from both studies is used to calculate the innate capacity of the species for increase at different humidities.

Nymphs of the clear-winged grasshopper, Camnula pellucida (Scudd.) have been observed to evacuate local habitats by marching (11). Except for a few stragglers, apparently all occupantsof the habitat moved in the same direction. Rarely, if ever, did these marches continue for more than 300 yardsin one direction, nor did the insects show much tendency to maintain identity as a band; nevertheless, the capacity of this species to march was clearly shown. The marches always occurred during the day and when the temperature was above 20°C. (8). In all recorded cases the nymphs moved into a cooler and more humid area. The authorhas not observed, or received reports of, instances of marching in the comparatively sluggish two-striped grasshopper, Melanoplus bivittatus (Say).

In June of 1955 and 1956 a chrysomelid beetle was observed feeding on Duchess and Fameuse apple trees, wild grape, Vitis vulpina L., and red osier, Cornus stolonifera Michx., in an apple orchard at St. Jacques, Laprairie County, Que. The infestation was limited to approximately 100 apple trees in this orchard and the insect was not observed in other apple-growing districts of southwestern Quebec. Specimens of the pest were identified as of Rhabdopterus praetextus (Say) by Mr. W. J. Brown, Entomology Division, Ottawa. Infestations by this pest on apple in the province of Quebec have only once before been reported, by C. E. Petch in 1924 (Petch, 1925).

The following new species are described to make names available for publications by other entomologists.

Apanteles salalicus n.sp.

This keys to couplet 72 or 74 in Muesebeck's revision (Proc. U.S. Natl. Mus. 58: 483-576, 1921.) but differs from both species there in its solitary habits, strongly exserted ovipositor sheaths, large and acutely pointed hypopygium, elevated and very coarsely sculptured abdominal tergites, and yellow hind coxae.

1927–Needham – Ann. Ent. Soc. Amer., 20: 108.

1935–Traver – Biol. Mayflies, 565 (hecuba group).

1954–Edmunds and Traver – Proc. Ent. Soc. Wash., 56: 238.

1954– Demoulin – Bull. Ann. Soc. Ent. Belg., 90: 324.

The subgenus Timpanoga of the genus Ephemerella contains but a singIe species,Ephmerella hecuba Eaton. Needham (1927) derived the name for this subgenus from Mt. Timpanogos in north central Utah, after collecting specimens of Ephemerella hecuba in the nearby Provo River. He based the subgenus on the nymph which shows remarkable morphological distinction with its broad entire frontal shelf and its extremely flattened body.

The genus Isonychus contains about 60 described species, largely from Central and South America. None have been recorded previously from the United States. The species described below from southern Arizona extends the known range of the genus about six or seven hundred miles northward.

The genus is placed in the Macrodactylini and may be briefly characterized as follows: surfaces of vertex, pronotum, scutellum, and elytra covered with setae; elytra feebly striate; setal color pattern usually present on elytra; fore tibia bidentate; all tarsi with two claws, each of the latter cleft at tip and with a small basal tooth; one tibial spur on each fore leg, two spurs on each mesothoracic leg in both sexes and two tibial spurs on each metathoracic leg of the female, spurs lacking or single on the metathoracic legs of the male; fore and middle coxae contiguous or very narrowly separated.

Records of diseases of Cerambycidae have appeared very infrequently in the literature. Crawshay (1907) described an unidentified disease of larvae of Tetropium gabrieli Weise. Garman (1921) and MacLeod (1954a) reported a fungus, Beauveria globulifera, a strain of Beauveria bassiana (Bals.) Vuill., from adults of Cyllene robiniae (Forst.) and a larva of Acanthocinus aedilis (L.) respectively. Duffy (1953) recorded the fungi lsaria sp. on adults of Phryneta spinator (Fab.), and Entomophthora grylli on larvae of Saperda carcharias (L.). A wilt disease, suspected of being caused by a virus, was reported by Beeson (1931) in larvae of Celosterna scabrator Fab.) reared in glass tubes.

In 1955 and 1956, while sampling corn stalks for larvae of the European corn borer in experimental plots at St. Jean, the author noted 23 adults of Coleomegilla maculata lengi Timb. and two adults of Coccinella novemnotata Hbst. that were parasitized and attached to the upper surfaces of corn leaves. Each beetle was astride a freshly formed cocoon and was held by a network of silk; many were alive when found. The parasite cocoons and the hosts were placed in closed petri dishesfor observation. The parasites that emerged were identified by Dr. W. R. M. Mason, Entomology Division, Ottawa,as Perilitus coccinellae (Schrank) (= Dinocampus terminatus (Nees).