R. V. Chamberlin.
New Polydesmoid Diplopods from Tennessee and Mississippi.
Psyche 25(6):122-127, 1918.

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122 , Psyche [~ecembe'
m. t. =Median tooth.
o. b. 1. =Outer barbated lobes.
r. m. =Relaxing muscle.
Plate VI. Photomicrographs of the contents of the digestive canal of cricket. Figs. 1, 2, 3 crop, proventriculus and mesenteron of cricket fed on miscellaneous food. Fig. 4,
crop of cricket fed on dead insects.
- Plate VII. Fig. 1 mesenteron of cricket fed on dead insects. Figs. 2, 3, 4 crop, proventriculus and mesenteron of cricket fed on wheat grains.
NEW POLYDESMOID DIPLOPODS FROM TENNESSEE AND MISSISSIPPI.
BY RALPH V. CHAMBERLIN,
Museum of Comparative Zoology.
Of the following underscribed species of millipedes one was collected in Mississippi at Agricultural College by Mr. J. W. Bailey, while the other four, three of them pertaining to a new genus, were taken by Professor R. Thaxter at Burbank in eastern Tennessee. The new genus is segregated from Fontaria sens. lat. Fontaria pela sp. nov.
This species when in full color is above deep shining black with the caudal corners of the carinse and the tip of the last tergite in life apparently bright red, fading in alcohol to brown or orange. There may or may not be a narrow stripe of the same bright color across the anterior border of the first tergite. The lateral region of each somite is in the main reddish or orange brown with a black stripe down the caudal portion from carina to legs, and a less dis- tinct dark stripe in some along the anterior border as well. The antennae are somewhat chestnut and the legs are brown. The body is proportionately rather slender. It is parallel-sided
excepting at the ends which are narrowed. The lateral carinse are moderate in size; the caudal margins of the anterior ones are bent forward, those of the middle region less so, and those of the posterior ones first straight and then bent caudad, the posterior angles of the



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19181 Chamberlin-New Polydesmoid Diplopods 123 last three acutely produced in increasing degree. Carinse all depressed.
Head smooth and shining. Vertigial sulcus distinct, ending be- tween antennae often in a weak pit-like depression, a more obscure sulcus running from here to each antenna, the two forming a very obtuse angle. No occipital foveolse detected in types. In the male the genital processes of the second coxse are short and cylindrical. The sternites are without processes excepting for low paired rounded bulgings on the third, fourth, and fifth sornites. Coxse unarmed.
The gonopods of the male are strongly pilose with long hairs on the mesa1 side at base, while the coiled blade is more sparsely pro- vided with very short hairs. The blade of each gonopod curves ventrad and then across the other one, again bending dorsad and then back toward its own side as far as the middle line where it curves again ventrad at its tip; it narrows gradually distad, becom- ing slender, but near the end expands a little into a slightly lanceo- late head which is acute and at the base of which on the concave side is a short tooth or spine; it is flattened throughout. The basal spine is rather stout and somewhat flattened with the acute apex bent at right angles to the main axis, and in some showing also a small acute point in line with the latter. The males are ordinarily obviously smaller than the females. Length of type (male) about 34 mm. ; width, 7.25 mm. Length
of a female near 40 mm., with the width 9 mm. The maximum
male is 41 mm. long and 8.5 mm. wide.
Locality: East Tennessee; Burbank. Numerous specimens col- lected by Dr. R. Thaxter.
Fontaria ochra sp. nov.
The types are in general fulvous, with the legs and antennae yellow, in most somewhat darker across the anterior region of the somites, though in the darkest individual of all the darkest part of the somite is in a narrow stripe slightly in front of the caudal margin. The general color appearance is much like that of F. crass^cutis Wood. The carinse in some are somewhat paler than the intervening region.
Body obviously narrowed at both ends, the sides over most of the length being parallel or nearly so. Lateral carinae moderately



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19181 Ludlou-A Note on Limatus durhami Theobald 127 Body slender, more strongly narrowed cephalad and caudad than in media, the attenuation caudad being especially pronounced and gradual. The processes of the last carinse shorter and much broad- er than in media; the processes of the two preceding segments differ in having the mesa1 margin much less oblique and more nearly symmetrical with the outer one, caudally rounded. The caudal extension of the posterior ends of the carinse begins farther forward than in media.
Vertigial sulcus very deep, ending below on a level with the centers of the antennal sockets, not truly bifurcate through there is a vague fine line from its lower end to each antennal socket. Sternites without processes.
Principal processes of gonopods gradually narrowing distad much as in media, but the glabrous distal region shorter and curv- ing more abruptly and more decidedly mesad, the distal, subvertical edge not obtusely excised as in media. The minor dorsal (anterior) processes more slender than in media and not subparallel, extend- ing each obliquely mesodistad.
Length of type (male) near 35 mm.; width, 5.5 mm. Locality: North Carolina: Cranberry (Coll. Aug. 6,1896. Rec'd for study through Prof. R. Thaxter.)
The type is abundantly infested with an Empusa. It is in the collection of the Department of Cryptogamic Botany at Harvard University.
A NOTE ON LIMATUS DURHAMI THEOBALD.
An interesting omission in the available descriptions of this species, so far as the English and American authorities at least are concerned, was brought to my attention by the receipt of speci- mens sent by Colonel W. H. Wilson, M. C., United States Army, from the Canal Zone.
Neither in Mr. Theobald's description1 nor in that given by Howard, Dyar and Knab2 is mention made of a very noticeable and 1 Theobald, F. V., Monograph, Culic. 11, p. 349. 1901. Ibid., 111, p. 333. 1903. 2 Howard, Dyar and Knab, Monograph, The Mosquitos of North and Central America and the West Indies, 111, p. 40. 1912.




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